Binder-free bifunctional SnFe sulfide/oxyhydroxide heterostructure electrocatalysts for overall water splitting

doi:10.1016/j.ijhydene.2022.11.039

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	Binder-free bifunctional SnFe sulfide/oxyhydroxide heterostructure electrocatalysts for overall water splitting
	T. Zhang, J. Y. Han, T. M. Tang, J. R. Sun and J. Q. Guan
	2023
发表期刊	International Journal of Hydrogen Energy
ISSN	0360-3199
卷号	48 期号:12 页码:4594-4602
摘要	Developing robust non-noble catalysts towards hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is vital for large-scale hydrogen production from electro-chemical water splitting. Here, we synthesize Sn-and Fe-containing sulfides and oxy-hydroxides anchored on nickel foam (SnFeSxOy/NF) using a solvothermal method, in which a heterostructure is generated between the sulfides and oxyhydroxides. The SnFeSxOy/NF exhibits low overpotentials of 85,167, 249, and 324 mV at 10,100, 500 and 1000 mA cm-2 for the HER, respectively, and a low overpotential of only 281 mV at 100 mA cm-2 for the OER. When it serves as both anode and cathode to assemble an electrolyzer, the cell voltage is only 1.69 V at 50 mA cm-2. The sulfides should be the efficient active species for the HER, while the oxyhydroxides are highly active for the OER. The unique sulfide/oxyhydroxide heterostructure facilitates charge transfer and lowers reaction barrier, thus promoting electrocatalytic processes.(c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
DOI	10.1016/j.ijhydene.2022.11.039
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收录类别	sci
语种	英语
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/68198
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	T. Zhang, J. Y. Han, T. M. Tang, J. R. Sun and J. Q. Guan. Binder-free bifunctional SnFe sulfide/oxyhydroxide heterostructure electrocatalysts for overall water splitting[J]. International Journal of Hydrogen Energy,2023,48(12):4594-4602.
APA	T. Zhang, J. Y. Han, T. M. Tang, J. R. Sun and J. Q. Guan.(2023).Binder-free bifunctional SnFe sulfide/oxyhydroxide heterostructure electrocatalysts for overall water splitting.International Journal of Hydrogen Energy,48(12),4594-4602.
MLA	T. Zhang, J. Y. Han, T. M. Tang, J. R. Sun and J. Q. Guan."Binder-free bifunctional SnFe sulfide/oxyhydroxide heterostructure electrocatalysts for overall water splitting".International Journal of Hydrogen Energy 48.12(2023):4594-4602.

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