Division of Applied Chemistry, Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan.
Department of Chemistry and Biotechnology, Tottori University, Tottori, 680-8550, Japan.
ChemSusChem. 2017 Jul 21;10(14):2864-2868. doi: 10.1002/cssc.201700499. Epub 2017 Jun 19.
Here, we report remarkable oxygen evolution reaction (OER) catalytic activity of brownmillerite (BM)-type Ca FeCoO . The OER activity of this oxide is comparable to or beyond those of the state-of-the-art perovskite (PV)-catalyst Ba Sr Co Fe O (BSCF) and a precious-metal catalyst RuO , emphasizing the importance of the characteristic BM structure with multiple coordination environments of transition metal (TM) species. Also, Ca FeCoO is clearly advantageous in terms of expense/laboriousness of the material synthesis. These facts make this oxide a promising OER catalyst used in many energy conversion technologies such as metal-air secondary batteries and hydrogen production from electrochemical/photocatalytic water splitting.
在这里，我们报道了尖晶石（BM）型 CaFeCoO 在氧析出反应（OER）中具有显著的催化活性。该氧化物的 OER 活性可与最先进的钙钛矿（PV）催化剂 BaSrCoFeO（BSCF）和贵金属催化剂 RuO2 相媲美，甚至超过它们，这强调了具有多种过渡金属（TM）物种配位环境的特征 BM 结构的重要性。此外，CaFeCoO 在材料合成的成本/复杂性方面具有明显优势。这些事实使该氧化物成为一种很有前途的 OER 催化剂，可用于许多能量转换技术，如金属-空气二次电池和通过电化学/光催化水分解制氢。
