电化学
电催化剂
材料科学
析氧
生产(经济)
催化作用
纳米技术
氧化还原
化学
电极
物理化学
冶金
有机化学
宏观经济学
经济
作者
Qi Wang,Liping Ren,Jie Zhang,Xin Chen,Chunying Chen,Fei Zhang,Shuai Wang,Jie Chen,Jinjia Wei
标识
DOI:10.1002/aenm.202301543
摘要
Abstract Low‐cost and on‐site H 2 O 2 production is desirable for industrial and civilian usage. (Photo)electrochemical H 2 O 2 production is proposed to be a safer, greener, and cheaper strategy for on‐site H 2 O 2 production as compared to the conventional anthraquinone process and the direct thermal synthesis. However, the efficiency, selectivity, and durability of the (photo)electrochemical H 2 O 2 production devices are still not satisfactory. Therefore, there is an urgent need to revisit the (photo)electrocatalyst and device designs for (photo)electrochemical on‐site H 2 O 2 production, thus to rationalize the research thoughts and provide valuable guidance. This review comprehensively summarizes and discusses the mechanism of two‐electron oxygen reduction reaction (2e − ORR) and two‐electron water oxidation reaction (2e − WOR) for H 2 O 2 production, and the current research status on the (photo)electrocatalysts and (photo)electrochemical devices. In particular, the pros and cons of the four types of (photo)electrochemical device designs, which are Type I (2e − ORR + oxygen evolution reaction), Type II (2e − ORR + hydrogen oxidation reaction), Type III (2e − WOR + hydrogen evolution reaction) and Type IV (2e − WOR + 2e − ORR), are discussed in detail. Finally, a practical perspective on the future research directions for the on‐site (photo)electrochemical H 2 O 2 production based on the technical challenges of this technique is provided.
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