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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">jamt</journal-id><journal-title-group><journal-title xml:lang="ru">Journal of Advanced Materials and Technologies</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of Advanced Materials and Technologies</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2782-2192</issn><issn pub-type="epub">2782-2206</issn><publisher><publisher-name>ФГБОУ ВО «ТГТУ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17277/jamt.2023.03.pp.207-216</article-id><article-id custom-type="elpub" pub-id-type="custom">jamt-8</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Материалы для энергетики и охраны окружающей среды, фотовольтаика следующего поколения и зеленые технологии</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Materials for energy and environment, next-generation photovoltaics, and green technologies</subject></subj-group></article-categories><title-group><article-title>Оценка адсорбционных свойств пористого углеродного материала из «отработанного» кофе</article-title><trans-title-group xml:lang="en"><trans-title>Evaluation of adsorption properties of a porous carbon material from coffee waste</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1036-7389</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Меметова</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Memetova</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Меметова Анастасия Евгеньевна, кандидат технических наук, доцент кафедры</p><p>ул. Советская, 106/5, пом. 2, Тамбов, 392000</p></bio><bio xml:lang="en"><p>Anastasia E. Memetova, Cand. Sc. (Eng.), Associate Professor of the Department</p><p>Bld. 2, 106/5, Sovetskaya St., Tambov, 392000</p></bio><email xlink:type="simple">anastasia.90k@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7449-5208</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Меметов</surname><given-names>Н. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Memetov</surname><given-names>N. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Меметов Нариман Рустемович, кандидат технических наук, доцент, заведующий кафедрой</p><p>ул. Советская, 106/5, пом. 2, Тамбов, 392000</p></bio><bio xml:lang="en"><p>Nariman R. Memetov, Cand. Sc. (Eng.), Associate Professor, Head of the Department</p><p>Bld. 2, 106/5, Sovetskaya St., Tambov, 392000</p></bio><email xlink:type="simple">memetov.nr@mail.tstu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зеленин</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Zelenin</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Зеленин Андрей Дмитриевич, младший научный сотрудник</p><p>AuthorID (Scopus) 41763210800</p><p>ул. Советская, 106/5, пом. 2, Тамбов, 392000</p></bio><bio xml:lang="en"><p>Andrey D. Zelenin, Junior Researcher</p><p>AuthorID (Scopus) 41763210800</p><p>Bld. 2, 106/5, Sovetskaya St., Tambov, 392000</p></bio><email xlink:type="simple">zeleandrey@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Тамбовский государственный технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tambov State Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>13</day><month>02</month><year>2026</year></pub-date><volume>8</volume><issue>3</issue><fpage>207</fpage><lpage>216</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Меметова А.Е., Меметов Н.Р., Зеленин А.Д., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Меметова А.Е., Меметов Н.Р., Зеленин А.Д.</copyright-holder><copyright-holder xml:lang="en">Memetova A.E., Memetov N.R., Zelenin A.D.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://jamt.elpub.ru/jour/article/view/8">https://jamt.elpub.ru/jour/article/view/8</self-uri><abstract><p>Статья посвящена изучению и оценке адсорбционных свойств нового высокопористого углеродного материала в широком интервале давлений при температурах выше критической. Показано, что активированный углеродный материал, полученный из «отработанного кофе» является эффективным адсорбентом для CH4. Так, в данном исследовании карбонизированная кофейная гуща использовалась в качестве прекурсора для получения высокопористого углеродного материала (ВУМ5), путем химической активации при 750 °С для эффективной адсорбции CH4. Порометрия показывает, что полученный адсорбент является микромезопористым с узким распределением пор по размерам, обладающий удельной площадью поверхности по БЭТ 3456 м2/г и объемом пор 1,604 см3/г. Изучена адсорбция CH4 на полученном углеродном материале при температурах 298.15…323.15 K и давлении до 100 бар. ВУМ5 демонстрирует высокую адсорбционную способность по CH4 19 ммоль/г при 10 МПа и 298,15 K. Экспериментальные данные адсорбции CH4 на ВУМ5 проанализированы с использованием типовых моделей адсорбции Ленгмюра и Фрейндлиха в интервале температур 298,15…323,13 K. Результаты показывают, что адсорбция CH4 на ВУМ5 в рассматриваемом диапазоне температур и давлений соответствуют адсорбции Ленгмюра. Данный факт подтверждается полученными значениями коэффициентов корреляции равными 0,99 и средних относительных отклонений между экспериментальными результатами и результатами, полученными с помощью модели Ленгмюра, которые составляют менее 3 %. Рассчитаны значения изостерических теплот при различных абсолютных количествах адсорбции CH4 на полученном ВУМ5, которые находятся в диапазоне от ~10,0 до 17,0 кДж/моль, что указывает на то, что процесс представляет собой физическую адсорбцию, а сила связи между молекулой CH4 и поверхностью адсорбента относится к силе Ван-дер-Ваальса. Данные изотерм адсорбции и термодинамические параметры, оцененные в настоящем исследовании, полезны для проектирования систем хранения газа на основе адсорбции.</p></abstract><trans-abstract xml:lang="en"><p>The article investigates and evaluates the adsorption properties of a new highly porous carbon material in a wide range of pressures at temperatures above the critical level. It has been shown that the activated carbon material obtained from coffee waste is an effective adsorbent for CH4. So, in this study, carbonized coffee grounds were used as a precursor to obtain a highly porous carbon material (HPCM5), by chemical activation at 750 °C for efficient CH4 adsorption. Porometry shows that the obtained adsorbent is micromesoporous with a narrow pore size distribution, having a BET specific surface area of 3456 m2⋅g–1 and a pore volume of 1.604 cm3⋅g–1. The adsorption of CH4 on the resulting carbon material was studied at temperatures of 298.15–323.15 K and pressures up to 100 bar. HPCM5 demonstrates a high CH4 adsorption capacity of 19 mmol⋅g–1 at 10 MPa and 298.15 K. Experimental data on CH4 adsorption on HPCM5 were analyzed using typical Langmuir and Freundlich adsorption models in the temperature range 298.15–323.13 K. The results show that CH4 adsorption on HPCM5 in the range of temperatures and pressures considered in this study correspond to the Langmuir adsorption; this is confirmed by the obtained values of the correlation coefficients equal to 0.99 and the average relative deviations between the experimental results and the results obtained with the Langmuir model, which are less than 3 %. The values of isosteric heats were calculated for different absolute amounts of CH4 adsorption on the resulting HPCM5, which are in the range from ~10.0 to 17.0 kJ⋅mol–1. This characterizes the process as a physical adsorption, and the bond strength between the CH4 molecule and adsorbent surface refers to the van der Waals force. The adsorption isotherm data and thermodynamic parameters evaluated in this study are useful for designing adsorption-based gas storage systems.</p></trans-abstract><kwd-group xml:lang="en"><kwd>adsorption</kwd><kwd>carbon adsorbent</kwd><kwd>methane</kwd><kwd>adsorption isotherms</kwd><kwd>adsorption isosteres</kwd><kwd>adsorption heat</kwd><kwd>porous structure.</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Президента Российской Федерации Стипендиальной программе (СП-1260.2021.1).</funding-statement><funding-statement xml:lang="en">The work has been carried out with the financial support of the President of the Russian Federation Scholarship Programme (SP-1260.2021.1).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Refaat TF, Ismail S, Nehrir AR, Hair JW, Crawford JH, Leifer I, Shuman T. Performance evaluation of a 1.6-µm methane DIAL system from ground, aircraft and UAV platforms. Optics Express. 2013;21:30415-30432. DOI:10.1364/OE.21.030415</mixed-citation><mixed-citation xml:lang="en">Refaat TF, Ismail S, Nehrir AR, Hair JW, Crawford JH, Leifer I, Shuman T. Performance evaluation of a 1.6-µm methane DIAL system from ground, aircraft and UAV platforms. Optics Express. 2013;21:30415-30432. DOI:10.1364/OE.21.030415</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Massie C, Stewart G, McGregor G, Gilchrist JR. Design of a portable optical sensor for methane gas detection. Sensors and Actuators B: Chemical. 2006;113:830-836. DOI:10.1016/j.snb.2005.03.105</mixed-citation><mixed-citation xml:lang="en">Massie C, Stewart G, McGregor G, Gilchrist JR. Design of a portable optical sensor for methane gas detection. Sensors and Actuators B: Chemical. 2006;113:830-836. DOI:10.1016/j.snb.2005.03.105</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Morris JR, Contescu CI, Chisholm MF, Cooper VR, Guo J, He L, et al. Modern approaches to studying gas adsorption in nanoporous carbons. Journal of Materials Chemistry A. 2013;1:9341-9350. DOI:10.1039/C3TA10701A</mixed-citation><mixed-citation xml:lang="en">Morris JR, Contescu CI, Chisholm MF, Cooper VR, Guo J, He L, et al. Modern approaches to studying gas adsorption in nanoporous carbons. Journal of Materials Chemistry A. 2013;1:9341-9350. DOI:10.1039/C3TA10701A</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Alcañiz-Monge D, Lozano-Castelló D, CazorlaAmorós A. Linares-solano fundamentals of methane adsorption in microporous carbons. Microporous and Mesoporous Materials. 2009;124(1-3):110-116. DOI: 10.1016/j.micromeso.2009.04.041</mixed-citation><mixed-citation xml:lang="en">Alcañiz-Monge D, Lozano-Castelló D, CazorlaAmorós A. Linares-solano fundamentals of methane adsorption in microporous carbons. Microporous and Mesoporous Materials. 2009;124(1-3):110-116. DOI: 10.1016/j.micromeso.2009.04.041</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Casco ME, Martínez-Escandell M, Gadea-Ramos E, Kaneko K, Silvestre-Albero J, Rodríguez-Reinoso F. Highpressure methane storage in porous materials: are carbon materials in the pole position? Chemistry of Materials. 2015;27:959-964. DOI:10.1021/cm5042524</mixed-citation><mixed-citation xml:lang="en">Casco ME, Martínez-Escandell M, Gadea-Ramos E, Kaneko K, Silvestre-Albero J, Rodríguez-Reinoso F. Highpressure methane storage in porous materials: are carbon materials in the pole position? Chemistry of Materials. 2015;27:959-964. DOI:10.1021/cm5042524</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Policicchio A, Filosa R, Abate S, Desiderio G, Colavita E. Activated carbon and metal organic framework as adsorbent for low-pressure methane storage applications: an overview. Journal of Porous Materials. 2017;24:905-922. DOI:10.1007/s10934-016-0330-9</mixed-citation><mixed-citation xml:lang="en">Policicchio A, Filosa R, Abate S, Desiderio G, Colavita E. Activated carbon and metal organic framework as adsorbent for low-pressure methane storage applications: an overview. Journal of Porous Materials. 2017;24:905-922. DOI:10.1007/s10934-016-0330-9</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Wang XL, French J, Kandadai S, Chua HT. Adsorption measurements of methane on activated carbon in the temperature range (281 to 343) K and pressures to 1.2 MPa. Journal of Chemical &amp; Engineering Data. 2010;55:2700-2706. DOI:10.1021/je900959w</mixed-citation><mixed-citation xml:lang="en">Wang XL, French J, Kandadai S, Chua HT. Adsorption measurements of methane on activated carbon in the temperature range (281 to 343) K and pressures to 1.2 MPa. Journal of Chemical &amp; Engineering Data. 2010;55:2700-2706. DOI:10.1021/je900959w</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Kumar KV, Kathrin O, Titirici M-M, RodríguezReinoso M-M. Nanoporous materials for the onboard storage of natural gas. Chemical Reviews. 2017;117:1796-1825. DOI:10.1021/acs.chemrev.6b00505</mixed-citation><mixed-citation xml:lang="en">Kumar KV, Kathrin O, Titirici M-M, RodríguezReinoso M-M. Nanoporous materials for the onboard storage of natural gas. Chemical Reviews. 2017;117:1796-1825. DOI:10.1021/acs.chemrev.6b00505</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Bimbo N, Smith JP, Aggarwal H, Physick AJ, Pugsley A, Barbour LJ, Ting VP, Mays TJ. Kinetics and enthalpies of methane adsorption in microporous materials AX-21, MIL-101 (Cr) and TE7. Chemical Engineering Research and Design. 2021;169:153-164. DOI:0.1016/j.cherd.2021.03.003</mixed-citation><mixed-citation xml:lang="en">Bimbo N, Smith JP, Aggarwal H, Physick AJ, Pugsley A, Barbour LJ, Ting VP, Mays TJ. Kinetics and enthalpies of methane adsorption in microporous materials AX-21, MIL-101 (Cr) and TE7. Chemical Engineering Research and Design. 2021;169:153-164. DOI:0.1016/j.cherd.2021.03.003</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Mason JA, Veenstra M, Long JR. Evaluating metal-organic frameworks for natural gas storage. Chemical Science. 2014;5:32-51. DOI:10.1039/C3SC52633J</mixed-citation><mixed-citation xml:lang="en">Mason JA, Veenstra M, Long JR. Evaluating metal-organic frameworks for natural gas storage. Chemical Science. 2014;5:32-51. DOI:10.1039/C3SC52633J</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Nour UM, Tayeb AM, Farag HA, Awad S. Enhanced discharge of ANG storage for vehicle use. International Journal of Engineering &amp; Technology. 2009;9:381-389.</mixed-citation><mixed-citation xml:lang="en">Nour UM, Tayeb AM, Farag HA, Awad S. Enhanced discharge of ANG storage for vehicle use. International Journal of Engineering &amp; Technology. 2009;9:381-389.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Beckner M, Dailly A. Adsorbed methane storage for vehicular applications. Applied Energy.2015;149:69-74. DOI:10.1016/j.apenergy.2015.03.123</mixed-citation><mixed-citation xml:lang="en">Beckner M, Dailly A. Adsorbed methane storage for vehicular applications. Applied Energy.2015;149:69-74. DOI:10.1016/j.apenergy.2015.03.123</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">DoE technical targets for hydrogen storage systems for material handling equipment fuel cell technologies office. Office of energy efficiency &amp; renewable energy, energy.gov. Available from: https://www.energy.gov/eere/fuelcells/doe-technical-targets-hydrogen-storage-systems-material-handling-equipment [Accessed 21 July 2023].</mixed-citation><mixed-citation xml:lang="en">DoE technical targets for hydrogen storage systems for material handling equipment fuel cell technologies office. Office of energy efficiency &amp; renewable energy, energy.gov. Available from: https://www.energy.gov/eere/fuelcells/doe-technical-targets-hydrogen-storage-systems-material-handling-equipment [Accessed 21 July 2023].</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">The advanced research projects agency – Energy (ARPA-E) of the U.S department of energy. DE-FOA0000672: Methane Opportunities for Vehicular Energy (MOVE). Available from: htps://arpa-e-foa.energy.gov/ Default.aspx?Search=move&amp;SearchType=https://arpa-e-foa.energy.gov/Default.aspx?Search=move&amp;SearchType=#FoaIddc1d731e-f2cf-4be9-b6ac-ab315582d000 [Accessed 21 July 2023].</mixed-citation><mixed-citation xml:lang="en">The advanced research projects agency – Energy (ARPA-E) of the U.S department of energy. DE-FOA0000672: Methane Opportunities for Vehicular Energy (MOVE). Available from: htps://arpa-e-foa.energy.gov/ Default.aspx?Search=move&amp;SearchType=https://arpa-e-foa.energy.gov/Default.aspx?Search=move&amp;SearchType=#FoaIddc1d731e-f2cf-4be9-b6ac-ab315582d000 [Accessed 21 July 2023].</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Konstas K, Osl T, Yang Y, Batten M, Burke N, Hill AJ, Hilla MR. Methane storage in metal organic frameworks. Journal of Materials Chemistry. 2012;22:16698-16708. DOI:10.1039/C2JM32719H</mixed-citation><mixed-citation xml:lang="en">Konstas K, Osl T, Yang Y, Batten M, Burke N, Hill AJ, Hilla MR. Methane storage in metal organic frameworks. Journal of Materials Chemistry. 2012;22:16698-16708. DOI:10.1039/C2JM32719H</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Sharafinia S, Rashidi A, Babaei B. et al. Nanoporous carbons based on coordinate organic polymers as an efficient and eco-friendly nano-sorbent for adsorption of phenol from wastewater. Scientific Reports. 2023;13:13127. DOI:10.1038/s41598-023-40243-0</mixed-citation><mixed-citation xml:lang="en">Sharafinia S, Rashidi A, Babaei B. et al. Nanoporous carbons based on coordinate organic polymers as an efficient and eco-friendly nano-sorbent for adsorption of phenol from wastewater. Scientific Reports. 2023;13:13127. DOI:10.1038/s41598-023-40243-0</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Park J, Jung M, Jang L, Lee K, Attia NF, Oh H. A facile synthesis tool of nanoporous carbon for promising H2, CO2, and CH4 sorption capacity and selective gas separation. Journal of Materials Chemistry. 2018;6:23087-23100. DOI:10.1039/C8TA08603F</mixed-citation><mixed-citation xml:lang="en">Park J, Jung M, Jang L, Lee K, Attia NF, Oh H. A facile synthesis tool of nanoporous carbon for promising H2, CO2, and CH4 sorption capacity and selective gas separation. Journal of Materials Chemistry. 2018;6:23087-23100. DOI:10.1039/C8TA08603F</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Choi P-S, Jeong J-M, Choi Y-K, Kim M-S, Shin G-J, Park S-J. A review: methane capture by nanoporous carbon materials for automobiles. Carbon Letters. 2016;17:18-28. DOI:10.5714/CL.2016.17.1.018</mixed-citation><mixed-citation xml:lang="en">Choi P-S, Jeong J-M, Choi Y-K, Kim M-S, Shin G-J, Park S-J. A review: methane capture by nanoporous carbon materials for automobiles. Carbon Letters. 2016;17:18-28. DOI:10.5714/CL.2016.17.1.018</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Tong W, Lv Y, Svec F. Advantage of nanoporous styrene-based monolithic structure over beads when applied for methane storage. Applied Energy. 2016;183: 1520-1527. DOI:10.1016/j.apenergy.2016.09.066</mixed-citation><mixed-citation xml:lang="en">Tong W, Lv Y, Svec F. Advantage of nanoporous styrene-based monolithic structure over beads when applied for methane storage. Applied Energy. 2016;183: 1520-1527. DOI:10.1016/j.apenergy.2016.09.066</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Alshareef SA Alqadami AA, Khan MA, Alanazi HS, Siddiqui MR, Jeon B-H. Simultaneous cohydrothermal carbonization and chemical activation of food wastes to develop hydrochar for aquatic environmental remediation. Bioresource Technology. 2021:126363. DOI:10.1016/j.biortech.2021.126363</mixed-citation><mixed-citation xml:lang="en">Alshareef SA Alqadami AA, Khan MA, Alanazi HS, Siddiqui MR, Jeon B-H. Simultaneous cohydrothermal carbonization and chemical activation of food wastes to develop hydrochar for aquatic environmental remediation. Bioresource Technology. 2021:126363. DOI:10.1016/j.biortech.2021.126363</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Tehrani NF, Aznar JS, Kiros Y. Coffee extract residue for production of ethanol and activated carbons. Journal of Cleaner Production. 2015;91:64-70. DOI:10.1016/j.jclepro.2014.12.031</mixed-citation><mixed-citation xml:lang="en">Tehrani NF, Aznar JS, Kiros Y. Coffee extract residue for production of ethanol and activated carbons. Journal of Cleaner Production. 2015;91:64-70. DOI:10.1016/j.jclepro.2014.12.031</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Wang H, Li X, Cui Z, Fu Z, Yang L, Liu G, Li M. Coffee grounds derived N enriched microporous activated carbons: efficient adsorbent for post-combustion CO2 capture and conversion. Journal of Colloid and Interface Science. 2020;578:491-499. DOI: 10.1016/j.jcis.2020.05.125</mixed-citation><mixed-citation xml:lang="en">Wang H, Li X, Cui Z, Fu Z, Yang L, Liu G, Li M. Coffee grounds derived N enriched microporous activated carbons: efficient adsorbent for post-combustion CO2 capture and conversion. Journal of Colloid and Interface Science. 2020;578:491-499. DOI: 10.1016/j.jcis.2020.05.125</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Paredes-Laverde M, Salamanca M, DiazCorrales JD, Flórez E, Silva-Agredo J, Torres-Palma RA. Understanding the removal of an anionic dye in textile wastewaters by adsorption on ZnCl2 activated carbons from rice and coffee husk wastes: A combined experimental and theoretical study. Journal of Environmental Chemical Engineering. 2021;9:105685. DOI:10.1016/j.jece.2021.105685</mixed-citation><mixed-citation xml:lang="en">Paredes-Laverde M, Salamanca M, DiazCorrales JD, Flórez E, Silva-Agredo J, Torres-Palma RA. Understanding the removal of an anionic dye in textile wastewaters by adsorption on ZnCl2 activated carbons from rice and coffee husk wastes: A combined experimental and theoretical study. Journal of Environmental Chemical Engineering. 2021;9:105685. DOI:10.1016/j.jece.2021.105685</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Thithai V, Jin X, Ajaz Ahmed M, Choi JW. Physicochemical properties of activated carbons produced from coffee waste and empty fruit bunch by chemical activation method. Energies. 2021;14:3002. DOI:10.3390/en14113002</mixed-citation><mixed-citation xml:lang="en">Thithai V, Jin X, Ajaz Ahmed M, Choi JW. Physicochemical properties of activated carbons produced from coffee waste and empty fruit bunch by chemical activation method. Energies. 2021;14:3002. DOI:10.3390/en14113002</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Tang X, Ripepi N, Luxbacher K, Pitcher E. Adsorption models for methane in shales: Review, Comparison, and application. Energy &amp; Fuels. 2017;31(10): 10787-10801. DOI:10.1021/acs.energyfuels.7b01948</mixed-citation><mixed-citation xml:lang="en">Tang X, Ripepi N, Luxbacher K, Pitcher E. Adsorption models for methane in shales: Review, Comparison, and application. Energy &amp; Fuels. 2017;31(10): 10787-10801. DOI:10.1021/acs.energyfuels.7b01948</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Du X, Cheng Y, Liu Z, Yin H, Wu T, Huo L, et al. CO2 and CH4 adsorption on different rank coals: a thermodynamics study of surface potential, Gibbs free energy change and entropy loss. Fuel. 2021;283:118886, DOI:10.1016/j.fuel.2020.118886</mixed-citation><mixed-citation xml:lang="en">Du X, Cheng Y, Liu Z, Yin H, Wu T, Huo L, et al. CO2 and CH4 adsorption on different rank coals: a thermodynamics study of surface potential, Gibbs free energy change and entropy loss. Fuel. 2021;283:118886, DOI:10.1016/j.fuel.2020.118886</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">Álvarez-Gutiérrez N, Gil MV, Rubiera F, Pevida C. Adsorption performance indicators for the CO2/CH4 separation: application to biomass-based activated carbons. Fuel Processing Technology. 2016;142:361-369. DOI:10.1016/j.fuproc.2015.10.038</mixed-citation><mixed-citation xml:lang="en">Álvarez-Gutiérrez N, Gil MV, Rubiera F, Pevida C. Adsorption performance indicators for the CO2/CH4 separation: application to biomass-based activated carbons. Fuel Processing Technology. 2016;142:361-369. DOI:10.1016/j.fuproc.2015.10.038</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Tian H, Li TF, Zhang TW, et al. Characterization of methane adsorption on overmature Lower SilurianUpper Ordovician shales in Sichuan Basin, southwest China: experimental results and geological implications. International Journal of Coal Geology. 2016;156:36-49. DOI:10.1016/j.coal.2016.01.013</mixed-citation><mixed-citation xml:lang="en">Tian H, Li TF, Zhang TW, et al. Characterization of methane adsorption on overmature Lower SilurianUpper Ordovician shales in Sichuan Basin, southwest China: experimental results and geological implications. International Journal of Coal Geology. 2016;156:36-49. DOI:10.1016/j.coal.2016.01.013</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">Yang F, Ning ZF, Wang Q, Liu HQ, Kong DT. Thermodynamic analysis of methane adsorption on gas shale. Journal of Central South University, Science and Technology. 2014;45:2871-2877.</mixed-citation><mixed-citation xml:lang="en">Yang F, Ning ZF, Wang Q, Liu HQ, Kong DT. Thermodynamic analysis of methane adsorption on gas shale. Journal of Central South University, Science and Technology. 2014;45:2871-2877.</mixed-citation></citation-alternatives></ref><ref id="cit30"><label>30</label><citation-alternatives><mixed-citation xml:lang="ru">Zhou SW, Wang HY, Zhang PY, et al. Investigation of the isosteric heat of adsorption for supercritical methane on shale under high pressure. Adsorption Science &amp; Technology. 2019;37:590-606. DOI:10.1177/0263617419866986</mixed-citation><mixed-citation xml:lang="en">Zhou SW, Wang HY, Zhang PY, et al. Investigation of the isosteric heat of adsorption for supercritical methane on shale under high pressure. Adsorption Science &amp; Technology. 2019;37:590-606. DOI:10.1177/0263617419866986</mixed-citation></citation-alternatives></ref><ref id="cit31"><label>31</label><citation-alternatives><mixed-citation xml:lang="ru">Mason JA, Oktawiec J, Taylor MK. Methane storage in flexible metal-organic frameworks with intrinsic thermal management. Nature. 2015;527:357-361. DOI:10.1038/nature15732</mixed-citation><mixed-citation xml:lang="en">Mason JA, Oktawiec J, Taylor MK. Methane storage in flexible metal-organic frameworks with intrinsic thermal management. Nature. 2015;527:357-361. DOI:10.1038/nature15732</mixed-citation></citation-alternatives></ref><ref id="cit32"><label>32</label><citation-alternatives><mixed-citation xml:lang="ru">Peng Y, Krungleviciute V, Eryazici I. Methane storage in metal-organic frameworks: current records, surprise findings, and challenges. Journal of the American Chemical Society. 2013;135:11887-11894. DOI:10.1021/ja4045289</mixed-citation><mixed-citation xml:lang="en">Peng Y, Krungleviciute V, Eryazici I. Methane storage in metal-organic frameworks: current records, surprise findings, and challenges. Journal of the American Chemical Society. 2013;135:11887-11894. DOI:10.1021/ja4045289</mixed-citation></citation-alternatives></ref><ref id="cit33"><label>33</label><citation-alternatives><mixed-citation xml:lang="ru">Yuan D, Lu W, Zhao D, Zhou H-C. Highly stable porous polymer networks with exceptionally high gasuptake capacities. Advanced Materials. 2011;23(32):3723-3725. DOI:10.1002/adma.201101759</mixed-citation><mixed-citation xml:lang="en">Yuan D, Lu W, Zhao D, Zhou H-C. Highly stable porous polymer networks with exceptionally high gasuptake capacities. Advanced Materials. 2011;23(32):3723-3725. DOI:10.1002/adma.201101759</mixed-citation></citation-alternatives></ref><ref id="cit34"><label>34</label><citation-alternatives><mixed-citation xml:lang="ru">Alezi D, Belmabkhout Y, Suyetin M. MOF crystal chemistry paving the way to gas storage needs: aluminum-based SOC-MOF for CH4, O2, and CO2 storage. Journal of the American Chemical Society. 2015;137: 13308-13318. DOI: 10.1021/jacs.5b07053</mixed-citation><mixed-citation xml:lang="en">Alezi D, Belmabkhout Y, Suyetin M. MOF crystal chemistry paving the way to gas storage needs: aluminum-based SOC-MOF for CH4, O2, and CO2 storage. Journal of the American Chemical Society. 2015;137: 13308-13318. DOI: 10.1021/jacs.5b07053</mixed-citation></citation-alternatives></ref><ref id="cit35"><label>35</label><citation-alternatives><mixed-citation xml:lang="ru">Kong G-Q, Han Z-D, He Y. Expanded organic building units for the construction of highly porous metalorganic frameworks. Chemistry A European Journal. 2013;19(44):14886-14894. DOI:10.1002/chem.201302515</mixed-citation><mixed-citation xml:lang="en">Kong G-Q, Han Z-D, He Y. Expanded organic building units for the construction of highly porous metalorganic frameworks. Chemistry A European Journal. 2013;19(44):14886-14894. DOI:10.1002/chem.201302515</mixed-citation></citation-alternatives></ref><ref id="cit36"><label>36</label><citation-alternatives><mixed-citation xml:lang="ru">He Y, Zhou W, Yildirim T, Chen B. A series of metal-organic frameworks with high methane uptake and an empirical equation for predicting methane storage capacity. Energy &amp; Environmental Science. 2013;6:2735-2744. DOI:10.1039/c3ee41166d</mixed-citation><mixed-citation xml:lang="en">He Y, Zhou W, Yildirim T, Chen B. A series of metal-organic frameworks with high methane uptake and an empirical equation for predicting methane storage capacity. Energy &amp; Environmental Science. 2013;6:2735-2744. DOI:10.1039/c3ee41166d</mixed-citation></citation-alternatives></ref><ref id="cit37"><label>37</label><citation-alternatives><mixed-citation xml:lang="ru">Wang B, Zhang X, Huang H. A microporous aluminum-based metal-organic framework for high methane, hydrogen, and carbon dioxide storage. Nano Research. 2021;14:507-511. DOI:10.1007/s12274-020-2713-0</mixed-citation><mixed-citation xml:lang="en">Wang B, Zhang X, Huang H. A microporous aluminum-based metal-organic framework for high methane, hydrogen, and carbon dioxide storage. Nano Research. 2021;14:507-511. DOI:10.1007/s12274-020-2713-0</mixed-citation></citation-alternatives></ref><ref id="cit38"><label>38</label><citation-alternatives><mixed-citation xml:lang="ru">Al-Naddaf Q, Majedi Far H, Cheshomi N. Exceptionally high gravimetric methane storage in aerogelderived carbons. Industrial &amp; Engineering Chemistry Research. 2020;59:19383-19391. DOI: 10.1021/acs.iecr.0c03225</mixed-citation><mixed-citation xml:lang="en">Al-Naddaf Q, Majedi Far H, Cheshomi N. Exceptionally high gravimetric methane storage in aerogelderived carbons. Industrial &amp; Engineering Chemistry Research. 2020;59:19383-19391. DOI: 10.1021/acs.iecr.0c03225</mixed-citation></citation-alternatives></ref><ref id="cit39"><label>39</label><citation-alternatives><mixed-citation xml:lang="ru">Li B, Wen H-M, Zhou W. Porous metal-organic frameworks: promising materials for methane storage. Chem. 2016;1(4):557-580. DOI:10.1016/j.chempr.2016.09.009</mixed-citation><mixed-citation xml:lang="en">Li B, Wen H-M, Zhou W. Porous metal-organic frameworks: promising materials for methane storage. Chem. 2016;1(4):557-580. DOI:10.1016/j.chempr.2016.09.009</mixed-citation></citation-alternatives></ref><ref id="cit40"><label>40</label><citation-alternatives><mixed-citation xml:lang="ru">Thu K, Kim Y-D, Ismil AB. Adsorption characteristics of methane on Maxsorb III by gravimetric method. Applied Thermal Engineering. 2014;72(2):200205. DOI:10.1016/j.applthermaleng.2014.04.076</mixed-citation><mixed-citation xml:lang="en">Thu K, Kim Y-D, Ismil AB. Adsorption characteristics of methane on Maxsorb III by gravimetric method. Applied Thermal Engineering. 2014;72(2):200205. DOI:10.1016/j.applthermaleng.2014.04.076</mixed-citation></citation-alternatives></ref><ref id="cit41"><label>41</label><citation-alternatives><mixed-citation xml:lang="ru">Wegrzyn J, Wisemann H, Lee Wegrzyn T, Low J. Pressure storage of natural gas on activated carbon. SAE Proceeding of Annual Automotive Technology. 1992:1-11.</mixed-citation><mixed-citation xml:lang="en">Wegrzyn J, Wisemann H, Lee Wegrzyn T, Low J. Pressure storage of natural gas on activated carbon. SAE Proceeding of Annual Automotive Technology. 1992:1-11.</mixed-citation></citation-alternatives></ref><ref id="cit42"><label>42</label><citation-alternatives><mixed-citation xml:lang="ru">Rozyyev V, Thirion D, Ullah R. et al. Highcapacity methane storage in flexible alkane-linked porous aromatic network polymers. Nature Energy.2019;4:604-611. DOI:10.1038/s41560-019-0427-x</mixed-citation><mixed-citation xml:lang="en">Rozyyev V, Thirion D, Ullah R. et al. Highcapacity methane storage in flexible alkane-linked porous aromatic network polymers. Nature Energy.2019;4:604-611. DOI:10.1038/s41560-019-0427-x</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
