Catalytic effect of Bi5+ in enhanced solar water splitting of tetragonal BiV0.8Mo0.2O4

Rajini P. Antony; Tom Baikie; Sing Yang Chiam; Yi Ren; Rajiv Ramanujam Prabhakar; Sudip K. Batabyal; Say Chye Joachim Loo; James Barber; Lydia Helena Wong

doi:10.1016/j.apcata.2016.07.022

Catalytic effect of Bi⁵⁺ in enhanced solar water splitting of tetragonal BiV_0.8Mo_0.2O₄

Rajini P. Antony, Tom Baikie, Sing Yang Chiam, Yi Ren, Rajiv Ramanujam Prabhakar, Sudip K. Batabyal, Say Chye Joachim Loo, James Barber, Lydia Helena Wong^*

^*Corresponding author for this work

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

13 Citations (Scopus)

Abstract

Improved photoelectrochemical activity for tetragonal BiV_0.8Mo_0.2O₄ fabricated by hydrothermal synthesis is reported in the present study. The enhanced water oxidation efficiency is attributed to the formation of cation vacancies (Bi⁵⁺)/oxygen interstitials due to high amount of Mo doping. Efficient charge transport and electron hole separation for water oxidation using BiV_0.8Mo_0.2O₄ photoanode was supported by electrochemical impedance investigations and open circuit photovoltage measurements. The present study gives a significant insight into the role of nonstoichiometry related efficient water oxidation using tetragonal BiVO₄.

Original language	English
Pages (from-to)	21-27
Number of pages	7
Journal	Applied Catalysis A: General
Volume	526
DOIs	https://doi.org/10.1016/j.apcata.2016.07.022
Publication status	Published - Sept 25 2016
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2016 Elsevier B.V.

ASJC Scopus Subject Areas

Catalysis
Process Chemistry and Technology

Keywords

Bismuth vanadate
Phase transition
Photoelectrochemical water splitting
Solar water oxidation
Tetragonal scheelite

UN SDGs

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

Access to Document

10.1016/j.apcata.2016.07.022

Cite this

@article{5b8adde2e60542b7a849b802ea0f60ee,

title = "Catalytic effect of Bi5+ in enhanced solar water splitting of tetragonal BiV0.8Mo0.2O4",

abstract = "Improved photoelectrochemical activity for tetragonal BiV0.8Mo0.2O4 fabricated by hydrothermal synthesis is reported in the present study. The enhanced water oxidation efficiency is attributed to the formation of cation vacancies (Bi5+)/oxygen interstitials due to high amount of Mo doping. Efficient charge transport and electron hole separation for water oxidation using BiV0.8Mo0.2O4 photoanode was supported by electrochemical impedance investigations and open circuit photovoltage measurements. The present study gives a significant insight into the role of nonstoichiometry related efficient water oxidation using tetragonal BiVO4.",

keywords = "Bismuth vanadate, Phase transition, Photoelectrochemical water splitting, Solar water oxidation, Tetragonal scheelite",

author = "Antony, {Rajini P.} and Tom Baikie and Chiam, {Sing Yang} and Yi Ren and Prabhakar, {Rajiv Ramanujam} and Batabyal, {Sudip K.} and Loo, {Say Chye Joachim} and James Barber and Wong, {Lydia Helena}",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2016",

month = sep,

day = "25",

doi = "10.1016/j.apcata.2016.07.022",

language = "English",

volume = "526",

pages = "21--27",

journal = "Applied Catalysis A: General",

issn = "0926-860X",

publisher = "Elsevier",

}

TY - JOUR

T1 - Catalytic effect of Bi5+ in enhanced solar water splitting of tetragonal BiV0.8Mo0.2O4

AU - Antony, Rajini P.

AU - Baikie, Tom

AU - Chiam, Sing Yang

AU - Ren, Yi

AU - Prabhakar, Rajiv Ramanujam

AU - Batabyal, Sudip K.

AU - Loo, Say Chye Joachim

AU - Barber, James

AU - Wong, Lydia Helena

PY - 2016/9/25

Y1 - 2016/9/25

N2 - Improved photoelectrochemical activity for tetragonal BiV0.8Mo0.2O4 fabricated by hydrothermal synthesis is reported in the present study. The enhanced water oxidation efficiency is attributed to the formation of cation vacancies (Bi5+)/oxygen interstitials due to high amount of Mo doping. Efficient charge transport and electron hole separation for water oxidation using BiV0.8Mo0.2O4 photoanode was supported by electrochemical impedance investigations and open circuit photovoltage measurements. The present study gives a significant insight into the role of nonstoichiometry related efficient water oxidation using tetragonal BiVO4.

AB - Improved photoelectrochemical activity for tetragonal BiV0.8Mo0.2O4 fabricated by hydrothermal synthesis is reported in the present study. The enhanced water oxidation efficiency is attributed to the formation of cation vacancies (Bi5+)/oxygen interstitials due to high amount of Mo doping. Efficient charge transport and electron hole separation for water oxidation using BiV0.8Mo0.2O4 photoanode was supported by electrochemical impedance investigations and open circuit photovoltage measurements. The present study gives a significant insight into the role of nonstoichiometry related efficient water oxidation using tetragonal BiVO4.

KW - Bismuth vanadate

KW - Phase transition

KW - Photoelectrochemical water splitting

KW - Solar water oxidation

KW - Tetragonal scheelite

UR - http://www.scopus.com/inward/record.url?scp=84980316081&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84980316081&partnerID=8YFLogxK

U2 - 10.1016/j.apcata.2016.07.022

DO - 10.1016/j.apcata.2016.07.022

M3 - Article

AN - SCOPUS:84980316081

SN - 0926-860X

VL - 526

SP - 21

EP - 27

JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

ER -