Influence of the Oxidized Carbon Nanotubes Modification Conditions on Their Catalytic Activity and Selectivity in the Oxygen Reduction Reaction to Hydrogen Peroxide | Sciact - CRIS-система Института катализа

Influence of the Oxidized Carbon Nanotubes Modification Conditions on Their Catalytic Activity and Selectivity in the Oxygen Reduction Reaction to Hydrogen Peroxide Научная публикация

Журнал

Russian Journal of Electrochemistry
ISSN: 1023-1935 , E-ISSN: 1608-3342

Вых. Данные

Год: 2024, Том: 60, Номер: 7, Страницы: 544-556 Страниц : 13 DOI: 10.1134/S1023193524700137

Ключевые слова

multi-walled carbon nanotubes, oxygen reduction reaction, hydrogen peroxide synthesis, oxygen containing groups

Авторы

Maltseva N.V. ^1,2 , Moseenkov S.I. ² , Lebedeva M.V. ^1,2 , Kozlov D.V. ^1,2

Организации

1	Novosibirsk State University, Novosibirsk, Russia
2	Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia

Информация о финансировании (1)

Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)

075-12-2021-697

Catalysts of the hydrogen peroxide cathodic synthesis are obtained from multiwalled carbon nano tubes pre-oxidized with nitric acid, follow by hydrogen reduction in the 300–500°C temperature range. Eval uation of physico-chemical properties of the catalysts showed the synthesis method used to be able con trolling changes in the surface oxygen groups’ composition without any change in the multiwalled carbon nanotubes’ structure and morphology. Investigation of catalytic activity in the cathodic process for hydrogen peroxide production demonstrated the sample prepared by hydrogen reduction at 300°C with oxygen content of 5.2 at % (according to XPS data) to have the highest efficiency. The sample produced the hydrogen peroxide with the rate of 0.34 mol/(g h) and Faradaic efficiency of 78%. Increase in the reduction temperature above 300°C resulted in a decrease in the rate of Н2О2 accumulation without severe changes in Faradaic efficiency.

Maltseva N.V. , Moseenkov S.I. , Lebedeva M.V. , Kozlov D.V.
Influence of the Oxidized Carbon Nanotubes Modification Conditions on Their Catalytic Activity and Selectivity in the Oxygen Reduction Reaction to Hydrogen Peroxide
Russian Journal of Electrochemistry. 2024. V.60. N7. P.544-556. DOI: 10.1134/S1023193524700137 WOS Scopus РИНЦ OpenAlex

Поступила в редакцию:	21 июл. 2023 г.
Принята к публикации:	8 февр. 2024 г.
Опубликована в печати:	17 июл. 2024 г.
Опубликована online:	17 июл. 2024 г.

Web of science:	WOS:001271938600007
Scopus:	2-s2.0-85198711237
РИНЦ:	68538069
OpenAlex:	W4400737585

Пока нет цитирований