Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 13, Pages 3897-3901Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201408998
Keywords
intrinsic activity; energy storage and conversion; oxygen evolution reaction; perovskites
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Funding
- Key Projects in Nature Science Foundation of Jiangsu Province [BK2011030]
- National Science Foundation for Distinguished Young Scholars of China [51025209]
- National Nature Science Foundation of China [21103089]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
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The perovskite SrNb0.1Co0.7Fe0.2O3-delta (SNCF) is a promising OER electrocatalyst for the oxygen evolution reaction (OER), with remarkable activity and stability in alkaline solutions. This catalyst exhibits a higher intrinsic OER activity, a smaller Tafel slope and better stability than the state-of-the-art precious-metal IrO2 catalyst and the well-known BSCF perovskite. The mass activity and stability are further improved by ball milling. Several factors including the optimized e(g) orbital filling, good ionic and charge transfer abilities, as well as high OH- adsorption and O-2 desorption capabilities possibly contribute to the excellent OER activity.
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