jamtJournal of Advanced Materials and TechnologiesJournal of Advanced Materials and Technologies2782-21922782-2206ФГБОУ ВО «ТГТУ»10.17277/jamt.2023.04.pp.260-269jamt-47Research ArticleНаноструктурированные наноматериалы и наноустройстваNanostructured, nanoscale materials and nanodevicesСинтез никелевых наноструктурированных микроволокон для повышения электрохимической активности никелевых электродовSynthesis of nickel nanostructured microfibers to increase the electrochemical activity of nickel electrodeshttps://orcid.org/0000-0003-1434-830XМорозовМ. В.MorozovM. V.

Морозов Михаил Валерьевич, кандидат технических наук, доцент кафедры «Нанотехнологии в электронике (НТвЭ)»

ул. Карла Маркса, 10, Казань, 423111

Mikhail V. Morozov, Cand. Sc. (Eng.), Associate Professor, Department of the Nanotechnology in Electronics

10, Karl Marx St., Kazan, 423111

misha617@mail.ruhttps://orcid.org/0000-0002-4003-0525МансуровР. Н.MansurovR. N.

Мансуров Равиль Нафисович, младший научный сотрудник

ул. Академика Арбузова, 8, Казань, 423088

Ravil N. Mansurov, Junior Researcher

8, Akademika Arbuzova St., Kazan, 423088

ravil545@bk.ruhttps://orcid.org/0000-0002-1655-4492ДробышевС. В.DrobyshevS. V.

Дробышев Сергей Викторович, ассистент, кафедра НТвЭ

ул. Карла Маркса, 10, Казань, 423111

Sergey V. Drobyshev, Assistant, Department of the Nanotechnology in Electronics

10, Karl Marx St., Kazan, 423111

warlordik_009@mail.ruКазанский национальный исследовательский технический университет им. А. Н. Туполева – КАИРоссияKazan National Research Technical University named after A. N. Tupolev – KAIRussian FederationИнститут органической и физической химии имени А. Е. Арбузова КазНЦ РАНРоссияA. E. Arbuzov Institute of Organic and Physical Chemistry KazNC RASRussian Federation20231402202684260269Copyright © Морозов М.В., Мансуров Р.Н., Дробышев С.В., 20262026Морозов М.В., Мансуров Р.Н., Дробышев С.В.Morozov M.V., Mansurov R.N., Drobyshev S.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://jamt.elpub.ru/jour/article/view/47

В настоящее время актуальными являются исследования свойств наноструктурированных материалов для электрохимических приложений, в частности, для разработки перспективных суперконденсаторов. В связи с этим особый интерес направлен на исследование новых способов синтеза никелевых микроволоконных наноструктурированных материалов. Проблема исследования заключается в том, что существующие способы синтеза сложны и требуют или специализированного оборудования, или большого количества химических реактивов для синтеза никелевых наноструктурированных материалов. Цель работы – определение влияния реагентов хлорида никеля в качестве окислителя и гидразингидрата в качестве восстановителя на параметры никелевых микроволокон – длину и развитость поверхности. С помощью данной методики получены никелевые наноструктурированные микроволокна в зависимости от концентрации окислителя. Морфология полученных продуктов охарактеризована методами оптической микроскопии и сканирующей электронной микроскопии. Показано, что морфология микроволокон плавно меняется с изменением концентрации окислителя, что обеспечивает управляемость характеристиками продукта, настройку требуемой длины никелевых микроволокон в диапазоне от 20 до 150 мкм. Методом рентгенофазового анализа подтверждено, что конечными продуктами синтеза являются никелевые микроволокна без каких-либо побочных примесей. Показана высокая электрохимическая активность никелевых электродов, модифицированных синтезированными структурами, в щелочном электролите. Полученные результаты могут быть использованы в электрохимических источниках тока, в том числе аккумуляторах и суперконденсаторах, а также в других приложениях, там, где требуется развитая поверхность, например, в сенсорах и катализе.

At present, the investigation of the properties of nanostructured materials for electrochemical applications, in particular for the development of promising supercapacitors, is of current interest. In this regard, a special interest is directed to the study of new methods for the synthesis of nickel microfibers nanostructured materials. The research focuses on the fact that the existing synthesis methods are complicated and require either specialized equipment or a large number of chemical reagents for the synthesis of nickel nanostructured materials. The aim of this work is to determine the influence of the reagents, nickel chloride as an oxidizer and hydrazine hydrate as a reducing agent, on the parameters of nickel microfibers – length and surface development. Using this technique, nickel nanostructured microfibers were obtained depending on the oxidizer concentration. The morphology of the obtained products was characterized by optical microscopy and scanning electron microscopy. It was shown that the morphology of the microfibres changes smoothly with changes of the oxidizer concentration, which provides controllability of the product characteristics, adjustment of the required length of nickel microfibers in the range from 20 to 150 μm. The method of X-ray phase analysis confirmed that the final products of the synthesis are nickel microfibers without any side impurities. The high electrochemical activity of nickel electrodes modified by the synthesized structures in alkaline electrolyte was shown. The results obtained can be used in the electrochemical current sources, including batteries and supercapacitors, as well as in other applications where a developed surface is required, for example, in sensors and catalysis.

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The authors declare that there are no conflicts of interest present.