化学
催化作用
同种类的
热化学
氧还原反应
电子转移
吸附
氧气
均相催化
多相催化
组合化学
纳米技术
生化工程
化学工程
无机化学
物理化学
热力学
有机化学
电化学
电极
工程类
物理
材料科学
作者
Michael L. Pegis,Catherine F. Wise,Daniel J. Martin,James M. Mayer
出处
期刊:Chemical Reviews
[American Chemical Society]
日期:2018-02-06
卷期号:118 (5): 2340-2391
被引量:476
标识
DOI:10.1021/acs.chemrev.7b00542
摘要
The oxygen reduction reaction (ORR) is a key component of biological processes and energy technologies. This Review provides a comprehensive report of soluble molecular catalysts and electrocatalysts for the ORR. The precise synthetic control and relative ease of mechanistic study for homogeneous molecular catalysts, as compared to heterogeneous materials or surface-adsorbed species, enables a detailed understanding of the individual steps of ORR catalysis. Thus, the Review places particular emphasis on ORR mechanism and thermodynamics. First, the thermochemistry of oxygen reduction and the factors influencing ORR efficiency are described to contextualize the discussion of catalytic studies that follows. Reports of ORR catalysis are presented in terms of their mechanism, with separate sections for catalysis proceeding via initial outer- and inner-sphere electron transfer to O2. The rates and selectivities (for production of H2O2 vs H2O) of these catalysts are provided, along with suggested methods for accurately comparing catalysts of different metals and ligand scaffolds that were examined under different experimental conditions.
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