Perspective of hydrogen energy and recent progress in electrocatalytic water splitting

doi:10.1016/j.cjche.2022.02.010

摘要/Abstract

摘要： As a secondary energy with great commercialization potential, hydrogen energy has been widely studied due to the high calorific value, clean combustion products and various reduction methods. At present, the blueprint of hydrogen energy economy in the world is gradually taking shape. Compared with the traditional high-energy consuming methane steam reforming hydrogen production method, the electrocatalytic water splitting hydrogen production stands out among other process of hydrogen production owning to the mild reaction conditions, high-purity hydrogen generation and sustainable production process. Basing on current technical economy situation, the highly electric power cost limits the further promotion of electrocatalytic water splitting hydrogen production process. Consequently, the rational design and development of low overpotential and high stability electrocatalytic water splitting catalysts are critical toward the realization of low-cost hydrogen production technology. In this review, we summarize the existing hydrogen production methods, elaborate the reaction mechanism of the electrocatalytic water splitting reaction under acidic and alkaline conditions and the recent progress of the respective catalysts for the two half-reactions. The structure–activity relationship of the catalyst was deep-going discussed, together with the prospects of electrocatalytic water splitting and the current challenges, aiming at provide insights for electrocatalytic water splitting catalyst development and its industrial applications.

关键词: Hydrogen energy, Hydrogen production, Renewable energy, Nanomaterials, Electrocatalytic water splitting

Abstract: As a secondary energy with great commercialization potential, hydrogen energy has been widely studied due to the high calorific value, clean combustion products and various reduction methods. At present, the blueprint of hydrogen energy economy in the world is gradually taking shape. Compared with the traditional high-energy consuming methane steam reforming hydrogen production method, the electrocatalytic water splitting hydrogen production stands out among other process of hydrogen production owning to the mild reaction conditions, high-purity hydrogen generation and sustainable production process. Basing on current technical economy situation, the highly electric power cost limits the further promotion of electrocatalytic water splitting hydrogen production process. Consequently, the rational design and development of low overpotential and high stability electrocatalytic water splitting catalysts are critical toward the realization of low-cost hydrogen production technology. In this review, we summarize the existing hydrogen production methods, elaborate the reaction mechanism of the electrocatalytic water splitting reaction under acidic and alkaline conditions and the recent progress of the respective catalysts for the two half-reactions. The structure–activity relationship of the catalyst was deep-going discussed, together with the prospects of electrocatalytic water splitting and the current challenges, aiming at provide insights for electrocatalytic water splitting catalyst development and its industrial applications.

Key words: Hydrogen energy, Hydrogen production, Renewable energy, Nanomaterials, Electrocatalytic water splitting

Yixuan Gong, Jiasai Yao, Ping Wang, Zhenxing Li, Hongjun Zhou, Chunming Xu. Perspective of hydrogen energy and recent progress in electrocatalytic water splitting[J]. 中国化学工程学报, 2022, 43(3): 282-296.

Yixuan Gong, Jiasai Yao, Ping Wang, Zhenxing Li, Hongjun Zhou, Chunming Xu. Perspective of hydrogen energy and recent progress in electrocatalytic water splitting[J]. Chinese Journal of Chemical Engineering, 2022, 43(3): 282-296.

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