期刊
CURRENT OPINION IN CHEMICAL ENGINEERING
卷 36, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.coche.2022.100827
关键词
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资金
- National Basic Research Program of China [2018YFA0702001]
- National Natural Science Foundation of China [21975237, 51702312]
- Anhui Provincial Research and Development Program [202004a05020073]
- USTC Research Funds of the Double First-Class Initiative [YD2340002007]
- Recruitment Program of Global Youth Experts
- Fundamental Research Funds for the Central Univerties [WK2340000101]
This article introduces the potential of green hydrogen as a sustainable energy source and its application in seawater electrolysis. The authors discuss the key aspects of seawater electrolysis, including the challenges and recent developments in electrode materials, as well as outline potential strategies for achieving highly efficient and selective catalysts in seawater electrolysis.
Green hydrogen (H-2) as a sustainable energy carrier can be directly produced through water electrolysis, potentially replacing traditional fossil fuels to achieve carbon neutrality. Current water electrolysis technologies rely on ultrapure freshwater, which, however, is scarce (<1% of earth's water) and unevenly distributed around the world. Due to the abundant reserves and reasonable economic feasibility, the conversion of seawater to H-2 powered by renewable electricity is considered as a promising candidate toward energy sustainability. Recently, the mechanism of seawater electrolysis has been progressively clarified, motivating the development of design principles, for example, the alkaline design criteria and the CI blocking layer, for improved catalyst performance. We discuss the vital aspects of seawater electrolysis, including the challenges and recent development in electrode materials. We outline potential strategies that enable highly active and selective catalysts for seawater electrolysis in the presence of contaminants such as metal ions, chloride, and bio-organisms, as well as describe issues in electrolyzer design. This perspective is concluded by presenting several development opportunities to advance this promising technique.
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