najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2025-16-4-483-490najo-1448Research ArticleCHEMISTRY AND MATERIALS SCIENCEХИМИЯ И НАУКА О МАТЕРИАЛАХElectrochemical characteristics of copper oxide nanoparticles synthesized by solution combustion method with controlled morphologyЭлектрохимические характеристики наночастиц оксида меди, синтезированных методом растворного горения с контролируемой морфологиейhttps://orcid.org/0000-0001-9313-4267МартинсонК. Д.MartinsonK. D.

Kirill D. Martinson 

Politekhnicheskaya st., 26, St. Petersburg, 194064, Russia

martinsonkirill@mail.ruЛебедьА. О.LebedA. O.

Angelina O. Lebed

St. Petersburg, 199026, Russia

https://orcid.org/0000-0001-7851-0148ЛитосовГ. Э.LitosovH. E.

Hermann E. Litosov 

26 Moskovsky prospect, St. Petersburg, 190013, Russia

https://orcid.org/0000-0003-2816-7059КаневаМ. В.KanevaM. V.

Maria V. Kaneva

Politekhnicheskaya st., 26, St. Petersburg, 194064, Russia 

https://orcid.org/0000-0001-5930-2087ЛобинскийА. А.LobinskyA. A.

Artem A. Lobinsky 

Politekhnicheskaya st., 26, St. Petersburg, 194064, Russia

Ioffe InstituteRussian FederationSt. Petersburg Electrotechnical University “Leti”Russian FederationSt. Petersburg State Institute of TechnologyRussian Federation202503092025164483490Copyright © Martinson K.D., Lebed A.O., Litosov H.E., Kaneva M.V., Lobinsky A.A., 20252025Мартинсон К.Д., Лебедь А.О., Литосов Г.Э., Канева М.В., Лобинский А.А.Martinson K.D., Lebed A.O., Litosov H.E., Kaneva M.V., Lobinsky A.A.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/1448

Copper oxide (CuO) nanoparticles were obtained under solution combustion conditions using glycine as an organic fuel and a chelating agent at different redox ratios (f = 0.2, 1.0, and 1.6). The obtained powders were thermally treated at 300 ◦C for 30 min and characterized by Thermogravimetry differential thermal analysis (DTA/TG), scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), powder X-ray diffraction (XRD), and atomic absorption spectrometry (AAS). The electrochemical characteristics were determined by cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) and electrochemical impedance spectroscopy (EIS). The average crystallite sizes and specific surface areas of the obtained samples varied in the range from 4.8 to 18.6 nm and 14.4 to 78.4 m2/g. The largest specific surface area corresponds to the sample synthesized at f = 0.2, which also has the smallest particle size (4.8 nm). The electrochemical behavior of copper oxide nanopowders depends significantly on structural and morphological features. The excellent specific capacity of the microstructure of the CuO sample synthesized at a significant fuel deficiency (f = 0.2) is explained by its large surface area and large pore radius.

Наночастицы оксида меди (CuO) были получены в условиях растворного горения с использованием глицина в качестве органического топлива и хелатирующего агента при различных окислительно-восстановительных отношениях (f = 0.2, 1.0 и 1.6). Полученные порошки были термически обработаны при 300 ℃ в течение 30 мин и охарактеризованы с помощью термогравиметрического дифференциального термического анализа (ДТА/ТГ), сканирующей электронной микроскопии (СЭМ), энергодисперсионной спектроскопии (ЭДС), порошковой рентгеновской дифракции (РФА) и атомно-абсорбционной спектрометрии (ААС). Электрохимические характеристики были определены с помощью циклической вольтамперометрии (ЦВА). Средние размеры кристаллитов и удельная поверхность полученных образцов варьировались в диапазоне от 4.8 до 18.6 нм и от 14.4 до 78.4 м2/г. Наибольшая удельная поверхность соответствует образцу, синтезированному при f = 0.2, который также имеет наименьший размер частиц (4.8 нм). Электрохимическое поведение нанопорошков оксида меди существенно зависит от структурных и морфологических особенностей. Отличная удельная емкость микроструктуры образца CuO, синтезированного при значительном дефиците топлива (f = 0.2), объясняется его большой площадью поверхности и большим радиусом пор.

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