Further Insights into the Role of Carbon in Manganese Oxide/Carbon Composites in the Oxygen Reduction Reaction in Alkaline Media | Sciact - CRIS-system of Boreskov Institute of Catalysis

Further Insights into the Role of Carbon in Manganese Oxide/Carbon Composites in the Oxygen Reduction Reaction in Alkaline Media Full article

Journal

Electrochimica Acta
ISSN: 0013-4686 , E-ISSN: 1873-3859

Output data

Year: 2017, Volume: 246, Pages: 643-653 Pages count : 11 DOI: 10.1016/j.electacta.2017.06.017

Tags

alkaline medium, carbon materials, Mn2O3 oxide, oxygen reduction reaction (ORR)

Authors

Ryabova Anna S. ^1,2 , Bonnefont Antoine ³ , Simonov Pavel A. ⁴ , Dintzer Thierry ¹ , Ulhaq-Bouillet Corinne ⁵ , Bogdanova Yulia G. ² , Tsirlina Galina A. ² , Savinova Elena R. ¹

Affiliations

1	ICPEES, UMR 7515 CNRS-ECPM-Université de Strasbourg, 25, rue Becquerel, F 67087 Strasbourg Cedex 2, France
2	Moscow State University, Leninskie Gory, 1-str. 3, Moscow 119991, Russia
3	IC, UMR 7177, CNRS- Université de Strasbourg, 4 rue Blaise Pascal, 67000 Strasbourg, France
4	Boreskov Institute of Catalysis, Prospekt Lavrentieva 5, Novosibirsk 630090, Russia
5	Institut de Physique et Chimie des Matériaux de Strasbourg, 23 rue du Loess, BP 43, 67037, Strasbourg, France

Funding (2)

1	Ministry of Foreign Affairs and International Development
2	Russian Foundation for Basic Research	270 NANO‐MORF

Manganese oxides are known as active catalysts for the oxygen reduction reaction (ORR) in alkaline media. Being poor electronic conductors, for electrochemical applications, most of Mn oxides are either mixed with or supported on carbon materials, which impart electronic conductivity to the composite electrodes. A number of recent publications reported an immense influence of carbon materials on the electrocatalytic activity of transition metal oxides in the ORR. To better understand the role of carbon, in this work we utilize a wide variety of carbon materials and investigate the ORR on Mn2O3/carbon composites combining experiment with kinetic modeling. Such an approach allows us to discriminate the contribution of carbon in the ORR activity of composites, underscoring its positive role in improving the oxide utilization, and acting as the ORR co-catalyst, but also its negative role in competing for the adsorption of O2. By juxtaposing the electrocatalytic activity with the structural and morphological characteristics carbon materials, we propose some rules of thumb for choosing carbons necessary for creating efficient oxide/carbon ORR electrocatalysts.

Ryabova A.S. , Bonnefont A. , Simonov P.A. , Dintzer T. , Ulhaq-Bouillet C. , Bogdanova Y.G. , Tsirlina G.A. , Savinova E.R.
Further Insights into the Role of Carbon in Manganese Oxide/Carbon Composites in the Oxygen Reduction Reaction in Alkaline Media
Electrochimica Acta. 2017. V.246. P.643-653. DOI: 10.1016/j.electacta.2017.06.017 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Jan 6, 2017
Accepted:	Jun 3, 2017
Published online:	Jun 21, 2017
Published print:	Aug 1, 2017

Web of science:	WOS:000406942800072
Scopus:	2-s2.0-85021074449
Elibrary:	29748512
Chemical Abstracts:	2017:1071145
Chemical Abstracts (print):	167:362737
OpenAlex:	W2692155207

DB	Citing
Web of science	38
Scopus	43
Elibrary	41
OpenAlex	42