Photoelectrocatalytic Water Splitting: Significance of Cocatalysts, Electrolyte, and Interfaces
Photoelectrocatalytic Water Splitting: Significance of Cocatalysts, Electrolyte, and Interfaces
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光电催化水分解：助催化剂、电解质和界面的意义
DOI：
10.1021/acscatal.6b03107
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发表时间：
2017-01-01
期刊：
影响因子：
12.9
通讯作者：
Li, Can
中科院分区：
文献类型：
--
作者：
Ding, Chunmei;Shi, Jingying;Li, Can
光电催化（PEC）分解水的效率受到光生电荷复合严重、过电位高和表面反应动力学缓慢等因素的限制。在这里，我们描述了最近的进展工程的电极-电解质和催化剂-助催化剂界面与助催化剂，电解质，和界面层（夹层），以提高PEC效率。引入助催化剂已被证明是降低反应势垒和促进电荷注入反应物的最有效方式。此外，还发现电解质离子对表面催化有显著的影响。电解质表面的阳离子可以影响水的裂解和逆反应，阴离子可以参与质子转移过程，表明电解质参数的微调是提高PEC效率的重要策略。此外，仔细改性的界面之间的助催化剂…
The efficiency of photoelectrocatalytic (PEC) water splitting is limited by the serious recombination of photogenerated charges, high overpotential, and sluggish kinetics of surface reaction. Herein we describe the recent progress on engineering the electrode–electrolyte and semiconductor–cocatalyst interfaces with cocatalysts, electrolytes, and interfacial layers (interlayers) to increase the PEC efficiency. Introducing cocatalysts has been demonstrated to be the most efficient way to lower the reaction barrier and promote charge injection to the reactants. In addition, it has been found that electrolyte ions can influence the surface catalysis remarkably. Electrolyte cations on the surface can influence the water splitting and backward reactions, and anions may take part in the proton transfer processes, indicating that fine-tuning of the electrolyte parameters turns out to be an important strategy for enhancing the PEC efficiency. Moreover, careful modification of the interface between the cocatalysts ...