Fe/Co/Ni Mixed Oxide Nanoparticles Supported on Oxidized Multi-Walled Carbon Nanotubes as Electrocatalysts for the Oxygen Reduction and the Oxygen Evolution Reactions in Alkaline Media

Fe/Co/Ni Mixed Oxide Nanoparticles Supported on Oxidized Multi-Walled Carbon Nanotubes as Electrocatalysts for the Oxygen Reduction and the Oxygen Evolution Reactions in Alkaline Media Научная публикация

Журнал

Catalysis Today
ISSN: 0920-5861

Вых. Данные

Год: 2020, Том: 357, Страницы: 259-268 Страниц : 10 DOI: 10.1016/j.cattod.2019.02.047

Авторы

Kazakova Mariya A. ^1,2 , Morales Dulce M. ³ , Andronescu Corina ⁴ , Elumeeva Karina ³ , Selyutin Alexander G. ² , Ishchenko Arcady V. ^1,2 , Golubtsov Georgiy V. ^1,2 , Dieckhöfer Stefan ³ , Schuhmann Wolfgang ³ , Masa Justus ³

Организации

1	Novosibirsk State University, Pirogova 2, Novosibirsk, 630090, Russia
2	Boreskov Institute of Catalysis, SB RAS, Lavrentieva 5, Novosibirsk, 630090, Russia
3	Analytical Chemistry, Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, D-44780, Bochum, Germany
4	Chemical Technology III, University Duisburg Essen, Carl-Benz-Str. 199, D-47057 Duisburg, Germany

Fabrication of efficient and cost-effective bifunctional oxygen electrocatalysts for both the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) remains a challenge for the development of rechargeable metal-air batteries and unitized regenerative fuel cells technologies. Herein, we report high-performance bifunctional ORR/OER electrocatalysts consisting of mixed transition metal (Fe, Co, Ni) oxide nanoparticles supported on oxidized multi-walled carbon nanotubes (MWCNT). Investigation of the ORR and OER activity of samples with different metal compositions showed that trimetallic/MWCNT composites having Fe:Ni:Co = x:x:(1-2x) ratios, with 0.25 ≤ x ≤ 0.4, exhibit highest bifunctional activity in terms of the reversible ORR/OER overvoltage at a given current density. Moreover, the trimetallic catalysts exhibited improved selectivity with respect to the reduction of O2 to OH− compared to the bimetallic Fe-Ni, Fe-Co and Co-Ni catalysts, thus revealing synergistic interactions among the metal oxide components. Correlation of the electrocatalytic activity with the structure of the composites is discussed for the most representative cases.

Kazakova M.A. , Morales D.M. , Andronescu C. , Elumeeva K. , Selyutin A.G. , Ishchenko A.V. , Golubtsov G.V. , Dieckhöfer S. , Schuhmann W. , Masa J.
Fe/Co/Ni Mixed Oxide Nanoparticles Supported on Oxidized Multi-Walled Carbon Nanotubes as Electrocatalysts for the Oxygen Reduction and the Oxygen Evolution Reactions in Alkaline Media
Catalysis Today. 2020. V.357. P.259-268. DOI: 10.1016/j.cattod.2019.02.047 WOS Scopus РИНЦ CAPlus OpenAlex Sciact

Поступила в редакцию:	9 окт. 2018 г.
Принята к публикации:	17 февр. 2019 г.
Опубликована online:	18 февр. 2019 г.
Опубликована в печати:	1 нояб. 2020 г.

Web of science:	WOS:000579549200028
Scopus:	2-s2.0-85061814342
РИНЦ:	38641730
Chemical Abstracts:	2019:365368
OpenAlex:	W2916315407
Sciact:	32386

БД	Цитирований
OpenAlex	72