Simultaneous enhancement in charge separation and interfacial charge transfer of BiVO4 photoanode for photoelectrochemical water oxidation

Ting Rong Ko; Yu Chien Chueh; Yi Hsuan Lai; Chia Yu Lin

doi:10.1016/j.jtice.2020.05.012

Simultaneous enhancement in charge separation and interfacial charge transfer of BiVO₄ photoanode for photoelectrochemical water oxidation

Ting Rong Ko, Yu Chien Chueh, Yi Hsuan Lai, Chia Yu Lin

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

Bismuth vanadate (BiVO₄) has been identified as one of the promising photoanode materials for photoelectrochemical (PEC) water splitting. Nevertheless, the serious charge recombination and sluggish kinetics of oxygen evolution reaction (OER) are the main factors limiting its PEC performance. In this contribution, copper incorporated nanostructured BiVO₄ photoanodes (nanoCu:BiVO₄) were prepared by converting the electrodeposited BiOI nanosheets in the presence of copper and vanadium sources and subsequent thermal treatment. nanoCu:BiVO₄ prepared with a suitable amount of copper consists of well-interconnected BiVO₄ nanoparticles coated with p-type Cu(I) vanadate. The well-interconnected structure improved the kinetics of the charge transport, whereas n–p heterojunction formed between BiVO₄ and Cu(I) vanadate remarkably improved the efficiencies of charge separation and interfacial charge transfer. Further improvement in OER kinetics and photostability of nanoCu:BiVO₄ was demonstrated by interfacing nanoCu:BiVO₄ with nickel-iron oxyhydroxide based OER catalyst.

Original language	English
Pages (from-to)	80-89
Number of pages	10
Journal	Journal of the Taiwan Institute of Chemical Engineers
Volume	111
DOIs	https://doi.org/10.1016/j.jtice.2020.05.012
Publication status	Published - 2020 Jun

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)

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This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.jtice.2020.05.012

Cite this

@article{a023b37292b94ea58cee97ba47bf730f,

title = "Simultaneous enhancement in charge separation and interfacial charge transfer of BiVO4 photoanode for photoelectrochemical water oxidation",

abstract = "Bismuth vanadate (BiVO4) has been identified as one of the promising photoanode materials for photoelectrochemical (PEC) water splitting. Nevertheless, the serious charge recombination and sluggish kinetics of oxygen evolution reaction (OER) are the main factors limiting its PEC performance. In this contribution, copper incorporated nanostructured BiVO4 photoanodes (nanoCu:BiVO4) were prepared by converting the electrodeposited BiOI nanosheets in the presence of copper and vanadium sources and subsequent thermal treatment. nanoCu:BiVO4 prepared with a suitable amount of copper consists of well-interconnected BiVO4 nanoparticles coated with p-type Cu(I) vanadate. The well-interconnected structure improved the kinetics of the charge transport, whereas n–p heterojunction formed between BiVO4 and Cu(I) vanadate remarkably improved the efficiencies of charge separation and interfacial charge transfer. Further improvement in OER kinetics and photostability of nanoCu:BiVO4 was demonstrated by interfacing nanoCu:BiVO4 with nickel-iron oxyhydroxide based OER catalyst.",

author = "Ko, {Ting Rong} and Chueh, {Yu Chien} and Lai, {Yi Hsuan} and Lin, {Chia Yu}",

note = "Funding Information: Financial support from the Ministry of Science and Technology of Taiwan ( 109-2218-E-006-023- , 108-2218-E-006-018 , 108-2636-E-006-011 , 109-2636-E-006-020 ). We also thank Professor Jih-Jen Wu for the technical support. Publisher Copyright: {\textcopyright} 2020 Taiwan Institute of Chemical Engineers Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",

year = "2020",

month = jun,

doi = "10.1016/j.jtice.2020.05.012",

language = "English",

volume = "111",

pages = "80--89",

journal = "Journal of the Taiwan Institute of Chemical Engineers",

issn = "1876-1070",

publisher = "Taiwan Institute of Chemical Engineers",

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T1 - Simultaneous enhancement in charge separation and interfacial charge transfer of BiVO4 photoanode for photoelectrochemical water oxidation

AU - Ko, Ting Rong

AU - Chueh, Yu Chien

AU - Lai, Yi Hsuan

AU - Lin, Chia Yu

N1 - Funding Information: Financial support from the Ministry of Science and Technology of Taiwan ( 109-2218-E-006-023- , 108-2218-E-006-018 , 108-2636-E-006-011 , 109-2636-E-006-020 ). We also thank Professor Jih-Jen Wu for the technical support. Publisher Copyright: © 2020 Taiwan Institute of Chemical Engineers Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2020/6

Y1 - 2020/6

N2 - Bismuth vanadate (BiVO4) has been identified as one of the promising photoanode materials for photoelectrochemical (PEC) water splitting. Nevertheless, the serious charge recombination and sluggish kinetics of oxygen evolution reaction (OER) are the main factors limiting its PEC performance. In this contribution, copper incorporated nanostructured BiVO4 photoanodes (nanoCu:BiVO4) were prepared by converting the electrodeposited BiOI nanosheets in the presence of copper and vanadium sources and subsequent thermal treatment. nanoCu:BiVO4 prepared with a suitable amount of copper consists of well-interconnected BiVO4 nanoparticles coated with p-type Cu(I) vanadate. The well-interconnected structure improved the kinetics of the charge transport, whereas n–p heterojunction formed between BiVO4 and Cu(I) vanadate remarkably improved the efficiencies of charge separation and interfacial charge transfer. Further improvement in OER kinetics and photostability of nanoCu:BiVO4 was demonstrated by interfacing nanoCu:BiVO4 with nickel-iron oxyhydroxide based OER catalyst.

AB - Bismuth vanadate (BiVO4) has been identified as one of the promising photoanode materials for photoelectrochemical (PEC) water splitting. Nevertheless, the serious charge recombination and sluggish kinetics of oxygen evolution reaction (OER) are the main factors limiting its PEC performance. In this contribution, copper incorporated nanostructured BiVO4 photoanodes (nanoCu:BiVO4) were prepared by converting the electrodeposited BiOI nanosheets in the presence of copper and vanadium sources and subsequent thermal treatment. nanoCu:BiVO4 prepared with a suitable amount of copper consists of well-interconnected BiVO4 nanoparticles coated with p-type Cu(I) vanadate. The well-interconnected structure improved the kinetics of the charge transport, whereas n–p heterojunction formed between BiVO4 and Cu(I) vanadate remarkably improved the efficiencies of charge separation and interfacial charge transfer. Further improvement in OER kinetics and photostability of nanoCu:BiVO4 was demonstrated by interfacing nanoCu:BiVO4 with nickel-iron oxyhydroxide based OER catalyst.

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