A visible-light-driven CoS2/CuS@CNT-C3N4 photocatalyst for high-performance rechargeable zinc-air batteries beyond 500 mW cm–2

IF 15.7 1区化学 Q1 CHEMISTRY, APPLIED

Chinese Journal of Catalysis Pub Date : 2025-01-01 DOI:10.1016/S1872-2067(24)60173-7

Yang Zhang , Nengneng Xu , Bingbing Gong , Xiaoxiao Ye , Yi Yang , Zhaodi Wang , Biyan Zhuang , Min Wang , Woochul Yang , Guicheng Liu , Joong Kee Lee , Jinli Qiao

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引用次数: 0

Abstract

ABSTRACT

Storing solar energy in battery systems is crucial to achieving a green and sustainable society. However, the efficient development of photo-enhanced zinc-air batteries (ZABs) is limited by the rapid recombination of photogenerated carriers on the photocathode. In this work, the visible-light-driven CoS₂/CuS@CNT-C₃N₄ photocatalyst with unique petal-like layer structure was designed and developed, which can be used as air electrode for visible-light-driven ZABs. The superior performance of ZABs assembled by CoS₂/CuS@CNT-C₃N₄ was mainly attributed to the successful construction of Schottky heterojunction between g-C₃N₄ and carbon nanotubes (CNTs), which accelerates the transfer of electrons from g-C₃N₄ to CoS₂/CuS cocatalysts, improves the carrier separation ability, and extends the carrier lifetime. Thereinto, the visible-driven ZABs assembled by CoS₂/CuS@CNT-C₃N₄ photocatalyst has a power density of 588.90 mW cm^–2 and a charge-discharge cycle of 643 h under visible light irradiation, which is the highest performance ever reported for photo-enhanced ZABs. More importantly, the charge-discharge voltage drop of ZABs was only 0.54 V under visible light irradiation, which is significantly lower than the voltage drop (0.94 V) in the dark. This study provides a new idea for designing efficient and stable visible-light-driven ZABs cathode catalysts.

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来源期刊

Chinese Journal of Catalysis 工程技术-工程：化工

CiteScore

25.80

自引率

10.30%

发文量

235

审稿时长

1.2 months

期刊介绍： The journal covers a broad scope, encompassing new trends in catalysis for applications in energy production, environmental protection, and the preparation of materials, petroleum chemicals, and fine chemicals. It explores the scientific foundation for preparing and activating catalysts of commercial interest, emphasizing representative models.The focus includes spectroscopic methods for structural characterization, especially in situ techniques, as well as new theoretical methods with practical impact in catalysis and catalytic reactions.The journal delves into the relationship between homogeneous and heterogeneous catalysis and includes theoretical studies on the structure and reactivity of catalysts.Additionally, contributions on photocatalysis, biocatalysis, surface science, and catalysis-related chemical kinetics are welcomed.