4.8 Article

Bifunctional Oxygen Reaction Catalysis of Quadruple Manganese Perovskites

Journal

ADVANCED MATERIALS
Volume 29, Issue 4, Pages -

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201603004

Keywords

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Funding

  1. Japan Society for the Promotion of Science [B15H04169, 16H00893, B16H04220]
  2. Ministry of Education, Culture, Sports, Science and Technology of Japan
  3. Toray Science Foundation
  4. Grants-in-Aid for Scientific Research [26249092, 16H04220, 16H00893, 15H04169] Funding Source: KAKEN

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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.

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