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Facile preparation of nickel phosphide for enhancing the photoelectrochemical water splitting performance of BiVO(4) photoanodes

The photoelectrochemical (PEC) water splitting performance of BiVO(4) (BVO), a promising photoanode material, is constrained by its extremely short hole diffusion length and slow water oxidation kinetics. Modification of oxygen evolution cocatalysts (OECs) by appropriate methods is a practical solut...

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Autores principales: Li, Yongsheng, Li, Zhen, Xu, Chengwen, Yu, Shuangwei, Sun, Zijun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10012418/
https://www.ncbi.nlm.nih.gov/pubmed/36926016
http://dx.doi.org/10.1039/d3ra00346a
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author Li, Yongsheng
Li, Zhen
Xu, Chengwen
Yu, Shuangwei
Sun, Zijun
author_facet Li, Yongsheng
Li, Zhen
Xu, Chengwen
Yu, Shuangwei
Sun, Zijun
author_sort Li, Yongsheng
collection PubMed
description The photoelectrochemical (PEC) water splitting performance of BiVO(4) (BVO), a promising photoanode material, is constrained by its extremely short hole diffusion length and slow water oxidation kinetics. Modification of oxygen evolution cocatalysts (OECs) by appropriate methods is a practical solution to enhance the PEC water splitting performance of BVO. In this work, two different nickel phosphides Ni(2)P and Ni(12)P(5) were prepared by a facile and mild one-step solvothermal method, and used as OECs to modify a BVO photoanode for enhancing the PEC water splitting performance. The BVO/Ni(2)P and BVO/Ni(12)P(5) photoanodes showed impressive photocurrent densities of 3.3 mA cm(−2) and 3.1 mA cm(−2), respectively. In addition, the PEC water splitting stability of the BVO/Ni(2)P photoanode was greatly enhanced compared to that of the bare BVO photoanode. Further characterization and photoelectrochemical analysis revealed that the significant improvement of the BVO photoanode performance was attributed to the effective inhibition of surface charge recombination, facilitation of interfacial charge transfer, and acceleration of water oxidation kinetics after Ni(2)P and Ni(12)P(5) modification.
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spelling pubmed-100124182023-03-15 Facile preparation of nickel phosphide for enhancing the photoelectrochemical water splitting performance of BiVO(4) photoanodes Li, Yongsheng Li, Zhen Xu, Chengwen Yu, Shuangwei Sun, Zijun RSC Adv Chemistry The photoelectrochemical (PEC) water splitting performance of BiVO(4) (BVO), a promising photoanode material, is constrained by its extremely short hole diffusion length and slow water oxidation kinetics. Modification of oxygen evolution cocatalysts (OECs) by appropriate methods is a practical solution to enhance the PEC water splitting performance of BVO. In this work, two different nickel phosphides Ni(2)P and Ni(12)P(5) were prepared by a facile and mild one-step solvothermal method, and used as OECs to modify a BVO photoanode for enhancing the PEC water splitting performance. The BVO/Ni(2)P and BVO/Ni(12)P(5) photoanodes showed impressive photocurrent densities of 3.3 mA cm(−2) and 3.1 mA cm(−2), respectively. In addition, the PEC water splitting stability of the BVO/Ni(2)P photoanode was greatly enhanced compared to that of the bare BVO photoanode. Further characterization and photoelectrochemical analysis revealed that the significant improvement of the BVO photoanode performance was attributed to the effective inhibition of surface charge recombination, facilitation of interfacial charge transfer, and acceleration of water oxidation kinetics after Ni(2)P and Ni(12)P(5) modification. The Royal Society of Chemistry 2023-03-14 /pmc/articles/PMC10012418/ /pubmed/36926016 http://dx.doi.org/10.1039/d3ra00346a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Li, Yongsheng
Li, Zhen
Xu, Chengwen
Yu, Shuangwei
Sun, Zijun
Facile preparation of nickel phosphide for enhancing the photoelectrochemical water splitting performance of BiVO(4) photoanodes
title Facile preparation of nickel phosphide for enhancing the photoelectrochemical water splitting performance of BiVO(4) photoanodes
title_full Facile preparation of nickel phosphide for enhancing the photoelectrochemical water splitting performance of BiVO(4) photoanodes
title_fullStr Facile preparation of nickel phosphide for enhancing the photoelectrochemical water splitting performance of BiVO(4) photoanodes
title_full_unstemmed Facile preparation of nickel phosphide for enhancing the photoelectrochemical water splitting performance of BiVO(4) photoanodes
title_short Facile preparation of nickel phosphide for enhancing the photoelectrochemical water splitting performance of BiVO(4) photoanodes
title_sort facile preparation of nickel phosphide for enhancing the photoelectrochemical water splitting performance of bivo(4) photoanodes
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10012418/
https://www.ncbi.nlm.nih.gov/pubmed/36926016
http://dx.doi.org/10.1039/d3ra00346a
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