现代化工

现代化工 ›› 2024, Vol. 44 ›› Issue (11) : 165-169. DOI: 10.16606/j.cnki.issn0253-4320.2024.11.030

科研与开发

磷原子诱导钒酸铋光阳极高效光电化学分解水的研究

王宇宏, 成伟杰, 王朝霞, 郭少青, 管晓垒, 高利珍, 王志豪

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Phosphorus atom induced BiVO₄ photoanode for efficient photoelectrochemical splitting of water

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Received		Published
2024-06-18		2024-11-20
Issue Date	Revised Date
2024-11-20	2024-06-18

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摘要

通过在电镀过程实现P体相掺杂制备P-BiVO₄光阳极,P-BiVO₄光阳极的起始电位相比于BiVO₄光阳极发生明显的阴极位移。在光电化学分解水反应中,P-BiVO₄表现出高效的选择性和活性。EIS和UPS测试结果表明,P掺杂能够显著加快光阳极的电荷转移,加速BiVO₄光阳极载流子的分离,从而延长了空穴寿命和促使空穴向表面转移,能够有效地提升光电化学分解水的OER动力学。

Abstract

P-BiVO₄ photoanode is prepared through P-phase doping during electroplating.The initial potential of P-BiVO₄ photoanode shifts significantly compared with that of BiVO₄ photoanode.P-BiVO₄ exhibits high selectivity and activity in the photoelectrochemical water-splitting reaction.EIS and UPS tests indicate that P doping can significantly accelerate the charge transfer and carrier separation of BiVO₄ photoanode,thus extending the hole life and promoting the hole transfer to the surface,and effectively improving the OER kinetics of photoelectrochemical water-splitting.