Operando Direct Observation of Stable Water-Oxidation Intermediates on Ca2–x IrO4 Nanocrystals for Efficient Acidic Oxygen Evolution

We report Ca2–x IrO4 nanocrystals exhibit record stability of 300 h continuous operation and high iridium mass activity (248 A gIr –1 at 1.5 VRHE) that is about 62 times that of benchmark IrO2. Lattice-resolution images and surface-sensitive spectroscopies demonstrate the Ir-rich surface layer (evol...

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Veröffentlicht in:	Nano letters 2022-09, Vol.22 (17), p.6988-6996
Hauptverfasser:	Li, Na, Cai, Liang, Gao, Guoping, Lin, Yue, Wang, Chao, Liu, Hengjie, Liu, Yuying, Duan, Hengli, Ji, Qianqian, Hu, Wei, Tan, Hao, Qi, Zeming, Wang, Lin-Wang, Yan, Wensheng
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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