Surface selective passivation and FexNi1-xOOH co-modified Fe2O3 photoanode toward high-performance water oxidation

doi:10.1016/j.ijhydene.2022.10.277

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	Surface selective passivation and FexNi1-xOOH co-modified Fe2O3 photoanode toward high-performance water oxidation
	K. K. Ba, Y. Y. Li, R. Zhang, K. Zhang, Z. J. Liang, Y. A. Liu, Y. H. Lin, D. J. Wang and T. F. Xie
	2023
发表期刊	International Journal of Hydrogen Energy
ISSN	0360-3199
卷号	48 期号:9 页码:3511-3519
摘要	Improving the water-splitting performance of hematite (a-Fe2O3) is still hindered due to its severe charge recombination and poor water oxidation kinetics. Herein, borate-treated Ti -Fe2O3 combined with a FexNi1-xOOH cocatalyst (FexNi1-xOOH/B/Ti-Fe2O3) greatly improved the performance of Ti-Fe2O3, and reached a notable photocurrent density of 3.39 mA/cm2 at 1.23 V vs. RHE. Transient surface photovoltage spectroscopy (TPV) directly reveals that [B(OH)4]- as a Lewis base can selectively passivate acceptor surface states on Ti -Fe2O3 photoanode surface, efficiently enhancing the charge separation efficiency. Moreover, the FexNi1-xOOH thin layer is devoted to further facilitate holes injection into the electrolyte, accelerating the water oxidation kinetics of Ti-Fe2O3 photoanode. The synergetic integration of acceptor surface states passivation and FexNi1-xOOH cocatalyst provides a novel strategy for the construction of efficient photoanodes by surface engineering. (c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
DOI	10.1016/j.ijhydene.2022.10.277
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收录类别	sci
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67328
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	K. K. Ba, Y. Y. Li, R. Zhang, K. Zhang, Z. J. Liang, Y. A. Liu, Y. H. Lin, D. J. Wang and T. F. Xie. Surface selective passivation and FexNi1-xOOH co-modified Fe2O3 photoanode toward high-performance water oxidation[J]. International Journal of Hydrogen Energy,2023,48(9):3511-3519.
APA	K. K. Ba, Y. Y. Li, R. Zhang, K. Zhang, Z. J. Liang, Y. A. Liu, Y. H. Lin, D. J. Wang and T. F. Xie.(2023).Surface selective passivation and FexNi1-xOOH co-modified Fe2O3 photoanode toward high-performance water oxidation.International Journal of Hydrogen Energy,48(9),3511-3519.
MLA	K. K. Ba, Y. Y. Li, R. Zhang, K. Zhang, Z. J. Liang, Y. A. Liu, Y. H. Lin, D. J. Wang and T. F. Xie."Surface selective passivation and FexNi1-xOOH co-modified Fe2O3 photoanode toward high-performance water oxidation".International Journal of Hydrogen Energy 48.9(2023):3511-3519.

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