催化作用
碱性水电解
分解水
电解
析氧
制氢
电解水
镍
吸附
碱性燃料电池
氢
重量分析
化石燃料
材料科学
无机化学
纳米技术
化学
化学工程
电化学
电解质
冶金
电极
有机化学
物理化学
工程类
光催化
作者
Mali Gong,Di Yan Wang,Chia Chun Chen,Bing‐Joe Hwang,Hongjie Dai
出处
期刊:Nano Research
[Springer Nature]
日期:2015-12-28
卷期号:9 (1): 28-46
被引量:729
标识
DOI:10.1007/s12274-015-0965-x
摘要
High gravimetric energy density, earth-abundance, and environmental friendliness of hydrogen sources have inspired the utilization of hydrogen fuel as a clean alternative to fossil fuels. Hydrogen evolution reaction (HER), a half reaction of water splitting, is crucial to the low-cost production of pure H2 fuels but necessitates the use of electrocatalysts to expedite reaction kinetics. Owing to the availability of low-cost oxygen evolution reaction (OER) catalysts for the counter electrode in alkaline media and the lack of low-cost OER catalysts in acidic media, researchers have focused on developing HER catalysts in alkaline media with high activity and stability. Nickel is well-known as an HER catalyst and continuous efforts have been undertaken to improve Ni-based catalysts as alkaline electrolyzers. In this review, we summarize earlier studies of HER activity and mechanism on Ni surfaces, along with recent progress in the optimization of the Ni-based catalysts using various modern techniques. Recently developed Ni-based HER catalysts are categorized according to their chemical nature, and the advantages as well as limitations of each category are discussed. Among all Ni-based catalysts, Ni-based alloys and Ni-based hetero-structure exhibit the most promising electrocatalytic activity and stability owing to the fine-tuning of their surface adsorption properties via a synergistic nearby element or domain. Finally, selected applications of the developed Ni-based HER catalysts are highlighted, such as water splitting, the chloralkali process, and microbial electrolysis cell.
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