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Cited by 267

The DOI matches its Crossref record; 105 of the 105 references it cites were found in a registry or an index.

Cobalt–Manganese‐Based Spinels as Multifunctional Materials that Unify Catalytic Water Oxidation and Oxygen Reduction Reactions

Menezes, Prashanth W., Indra, Arindam, Sahraie, Nastaran Ranjbar, Bergmann, Arno, Strasser, Peter, Driess, Matthias·2015·ChemSusChem

Abstract

Recently, there has been much interest in the design and development of affordable and highly efficient oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) catalysts that can resolve the pivotal issues that concern solar fuels, fuel cells, and rechargeable metal‐air batteries. Here we present the synthesis and application of porous CoMn 2 O 4 and MnCo 2 O 4 spinel microspheres as highly efficient multifunctional catalysts that unify the electrochemical OER with oxidant‐driven and photocatalytic water oxidation as well as the ORR. The porous materials were prepared by the thermal degradation of the respective carbonate precursors at 400 °C. The as‐prepared spinels display excellent performances in electrochemical OER for the cubic MnCo 2 O 4 phase in comparison to the tetragonal CoMn 2 O 4 material in an alkaline medium. Moreover, the oxidant‐driven and photocatalytic water oxidations were performed and they exhibited a similar trend in activity to that of the electrochemical OER. Remarkably, the situation is reversed in ORR catalysis, that is, the oxygen reduction activity and stability of the tetragonal CoMn 2 O 4 catalyst outperformed that of cubic MnCo 2 O 4 and rivals that of benchmark Pt catalysts. The superior catalytic performance and the remarkable stability of the unifying materials are attributed to their unique porous and robust microspherical morphology and the intrinsic structural features of the spinels. Moreover, the facile access to these high‐performance materials enables a reliable and cost‐effective production on a large scale for industrial applications.

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Crossref · 10.1002/cssc.201402699

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Metadata

Authors
Menezes, P. W., Indra, A., Sahraie, N. R., Bergmann, A., Strasser, P., & Driess, M.
Venue
ChemSusChem
Publisher
Wiley
Published
2014-11-13
Volume
8
Issue
1
Pages
164-171
ISSN
  • 1864-5631 (ISSN-L)
  • 1864-564X
OpenAlex
W1964083672
Cited by
267
References
105
FWCI
10.26
Type
journal article
Language
en
Open access
closed

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