Influence of the Oxidized Carbon Nanotubes Modification Conditions on Their Catalytic Activity and Selectivity in the Oxygen Reduction Reaction to Hydrogen Peroxide Full article
| Journal |
Russian Journal of Electrochemistry
ISSN: 1023-1935 , E-ISSN: 1608-3342 |
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| Output data | Year: 2024, Volume: 60, Number: 7, Pages: 544-556 Pages count : 13 DOI: 10.1134/S1023193524700137 | ||||
| Tags | multi-walled carbon nanotubes, oxygen reduction reaction, hydrogen peroxide synthesis, oxygen containing groups | ||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Ministry of Science and Higher Education of the Russian Federation | 075-12-2021-697 |
Abstract:
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.
Cite:
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
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
Dates:
| Submitted: | Jul 21, 2023 |
| Accepted: | Feb 8, 2024 |
| Published print: | Jul 17, 2024 |
| Published online: | Jul 17, 2024 |
Identifiers:
| Web of science: | WOS:001271938600007 |
| Scopus: | 2-s2.0-85198711237 |
| Elibrary: | 68538069 |
| OpenAlex: | W4400737585 |
Citing:
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