Recent Progress of Transition Metal Compounds as Electrocatalysts for Electrocatalytic Water Splitting

Hydrogen has enormous commercial potential as a secondary energy source because of its high calorific value, clean combustion byproducts, and multiple production methods. Electrocatalytic water splitting is a viable alternative to the conventional methane steam reforming technique, as it operates un...

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Bibliographic Details
Published in:Chemical record 2023-11, Vol.23 (11), p.e202300109-e202300109
Main Authors: Yu, Yongren, Wang, Tiantian, Zhang, Yue, You, Junhua, Hu, Fang, Zhang, Hangzhou
Format: Article
Language:English
Subjects:
Availability
Calorific value
Catalysts
Clean energy
Electrocatalysts
Energy sources
Evolution
Gold
Hydrogen
Hydrogen evolution reactions
Metal compounds
Metals
Noble metals
Oxygen evolution reactions
Precious metals
Production methods
Reaction mechanisms
Reforming
Splitting
Sustainable production
Transition metal compounds
Water splitting
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Summary:Hydrogen has enormous commercial potential as a secondary energy source because of its high calorific value, clean combustion byproducts, and multiple production methods. Electrocatalytic water splitting is a viable alternative to the conventional methane steam reforming technique, as it operates under mild conditions, produces high-quality hydrogen, and has a sustainable production process that requires less energy. Electrocatalysts composed of precious metals like Pt, Au, Ru, and Ag are commonly used in the investigation of hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Nevertheless, their limited availability and expensive cost restrict practical use. In contrast, electrocatalysts that do not contain precious metals are readily available, cost-effective, environmentally friendly, and possess electrocatalytic performance equal to that of noble metals. However, considerable research effort must be devoted to create cost-effective and high-performing catalysts. This article provides a comprehensive examination of the reaction mechanism involved in electrocatalytic water splitting in both acidic and basic environments. Additionally, recent breakthroughs in catalysts for both the hydrogen evolution and oxygen evolution reactions are also discussed. The structure-activity relationship of the catalyst was deep-going discussed, together with the prospects of current obstacles and potential for electrocatalytic water splitting, aiming at provide valuable perspectives for the advancement of economical and efficient electrocatalysts on an industrial scale.
ISSN:1527-8999
1528-0691
DOI:10.1002/tcr.202300109