电
阳极
制氢
电解
析氧
氧化还原
电化学
电解水
生产(经济)
可再生能源
阴极
发电
生化工程
电力转天然气
分解水
氢
环境科学
纳米技术
工艺工程
化学
材料科学
电极
无机化学
工程类
功率(物理)
催化作用
电气工程
经济
物理
有机化学
生物化学
光催化
量子力学
物理化学
宏观经济学
电解质
作者
Dafeng Yan,Chalachew Mebrahtu,Shuangyin Wang,Regina Palkovits
标识
DOI:10.1002/anie.202214333
摘要
Renewable H2 production by water electrolysis has attracted much attention due to its numerous advantages. However, the energy consumption of conventional water electrolysis is high and mainly driven by the kinetically inert anodic oxygen evolution reaction. An alternative approach is the coupling of different half-cell reactions and the use of redox mediators. In this review, we, therefore, summarize the latest findings on innovative electrochemical strategies for H2 production. First, we address redox mediators utilized in water splitting, including soluble and insoluble species, and the corresponding cell concepts. Second, we discuss alternative anodic reactions involving organic and inorganic chemical transformations. Then, electrochemical H2 production at both the cathode and anode, or even H2 production together with electricity generation, is presented. Finally, the remaining challenges and prospects for the future development of this research field are highlighted.
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