析氧
分解水
金红石
催化作用
材料科学
氧气
方向(向量空间)
面(心理学)
金属
化学物理
纳米尺度
过渡金属
化学工程
纳米技术
结晶学
化学
物理化学
电极
电化学
几何学
冶金
心理学
社会心理学
生物化学
数学
有机化学
光催化
人格
工程类
五大性格特征
作者
Kelsey A. Stoerzinger,Liang Qiao,Michael D. Biegalski,Yang Shao-Horn
摘要
The activities of the oxygen evolution reaction (OER) on IrO2 and RuO2 catalysts are among the highest known to date. However, the intrinsic OER activities of surfaces with defined crystallographic orientations are not well-established experimentally. Here we report that the (100) surface of IrO2 and RuO2 is more active in alkaline environments (pH 13) than the most thermodynamically stable (110) surface. The OER activity was correlated with the density of coordinatively undersaturated metal sites of each crystallographic facet. The surface-orientation-dependent activities can guide the design of nanoscale catalysts with increased activity for electrolyzers, metal-air batteries, and photoelectrochemical water splitting applications.
科研通智能强力驱动
Strongly Powered by AbleSci AI