Bifunctional Oxygen Reaction Catalysis of Quadruple Manganese Perovskites

Bifunctional electrocatalysts for oxygen evolution/reduction reaction (OER/ORR) are desirable for the development of energy conversion technologies. It is discovered that the manganese quadruple perovskites CaMn7O12 and LaMn7O12 show bifunctional catalysis in the OER/ORR. A possible origin of the hi...

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Published inAdvanced materials (Weinheim) Vol. 29; no. 4; pp. np - n/a
Main Authors Yamada, Ikuya, Fujii, Hiroshi, Takamatsu, Akihiko, Ikeno, Hidekazu, Wada, Kouhei, Tsukasaki, Hirofumi, Kawaguchi, Shogo, Mori, Shigeo, Yagi, Shunsuke
Format Journal Article
LanguageEnglish
Published Germany Wiley Subscription Services, Inc 01.01.2017
Subjects
bifunctional electrocatalysts
Bonding
Catalysis
Electrocatalysts
Energy conversion
Evolution
Manganese
manganese oxides
Materials science
Origins
Oxygen
oxygen evolution reaction
oxygen reduction reaction
Perovskites
quadruple perovskite
Surface structure
oxygen evolution reaction
bifunctional electrocatalysts
quadruple perovskite
oxygen reduction reaction
manganese oxides
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Summary:Bifunctional electrocatalysts for oxygen evolution/reduction reaction (OER/ORR) are desirable for the development of energy conversion technologies. It is discovered that the manganese quadruple perovskites CaMn7O12 and LaMn7O12 show bifunctional catalysis in the OER/ORR. A possible origin of the high OER activity is the unique surface structure through corner‐shared planar MnO4 and octahedral MnO6 units to promote direct OO bond formations.
Bibliography:ObjectType-Article-1
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ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201603004