Visible-light driven water splitting over BiFeO3 photoanodes grown via the LPCVD reaction of [Bi(OtBu)3] and [Fe(OtBu)3]2 and enhanced with a surface nickel oxygen evolution catalyst

Savio J.A. Moniz; Christopher S. Blackman; Paul Southern; Paul M. Weaver; Junwang Tang; Claire J. Carmalt

doi:10.1039/c5nr04804d

Visible-light driven water splitting over BiFeO₃ photoanodes grown via the LPCVD reaction of [Bi(O^tBu)₃] and [Fe(O^tBu)₃]₂ and enhanced with a surface nickel oxygen evolution catalyst

Savio J.A. Moniz, Christopher S. Blackman, Paul Southern, Paul M. Weaver, Junwang Tang, Claire J. Carmalt

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

Abstract

Phase-pure BiFeO₃ films were grown directly via dual-source low-pressure CVD (LPCVD) from the ligand-matched precursors [Bi(O^tBu)₃] and [Fe(O^tBu)₃]₂, without the requirement for oxidising gas or post deposition annealing. Photocatalytic testing for water oxidation revealed extremely high activity for PEC water splitting and photocatalytic water oxidation under visible light irradiation (λ > 420 nm) with a benchmark IPCE for BiFeO₃ of 23% at 400 nm. The high activity is ascribed to the ultrafine morphology achieved via the LPCVD process. The performance was enhanced by over four times when the BiFeO₃ photoanode is coupled to a Ni-B surface OEC.

Original language	English
Pages (from-to)	16343-16353
Number of pages	11
Journal	Nanoscale
Volume	7
Issue number	39
DOIs	https://doi.org/10.1039/c5nr04804d
Publication status	Published - 21 Oct 2015
Externally published	Yes

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title = "Visible-light driven water splitting over BiFeO3 photoanodes grown via the LPCVD reaction of [Bi(OtBu)3] and [Fe(OtBu)3]2 and enhanced with a surface nickel oxygen evolution catalyst",

abstract = "Phase-pure BiFeO3 films were grown directly via dual-source low-pressure CVD (LPCVD) from the ligand-matched precursors [Bi(OtBu)3] and [Fe(OtBu)3]2, without the requirement for oxidising gas or post deposition annealing. Photocatalytic testing for water oxidation revealed extremely high activity for PEC water splitting and photocatalytic water oxidation under visible light irradiation (λ > 420 nm) with a benchmark IPCE for BiFeO3 of 23% at 400 nm. The high activity is ascribed to the ultrafine morphology achieved via the LPCVD process. The performance was enhanced by over four times when the BiFeO3 photoanode is coupled to a Ni-B surface OEC.",

author = "Moniz, {Savio J.A.} and Blackman, {Christopher S.} and Paul Southern and Weaver, {Paul M.} and Junwang Tang and Carmalt, {Claire J.}",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry.",

year = "2015",

month = oct,

day = "21",

doi = "10.1039/c5nr04804d",

language = "English",

volume = "7",

pages = "16343--16353",

journal = "Nanoscale",

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}

Visible-light driven water splitting over BiFeO₃ photoanodes grown via the LPCVD reaction of [Bi(O^tBu)₃] and [Fe(O^tBu)₃]₂ and enhanced with a surface nickel oxygen evolution catalyst. / Moniz, Savio J.A.; Blackman, Christopher S.; Southern, Paul et al.
In: Nanoscale, Vol. 7, No. 39, 21.10.2015, p. 16343-16353.

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

TY - JOUR

T1 - Visible-light driven water splitting over BiFeO3 photoanodes grown via the LPCVD reaction of [Bi(OtBu)3] and [Fe(OtBu)3]2 and enhanced with a surface nickel oxygen evolution catalyst

AU - Moniz, Savio J.A.

AU - Blackman, Christopher S.

AU - Southern, Paul

AU - Weaver, Paul M.

AU - Tang, Junwang

AU - Carmalt, Claire J.

N1 - Publisher Copyright: © The Royal Society of Chemistry.

PY - 2015/10/21

Y1 - 2015/10/21

N2 - Phase-pure BiFeO3 films were grown directly via dual-source low-pressure CVD (LPCVD) from the ligand-matched precursors [Bi(OtBu)3] and [Fe(OtBu)3]2, without the requirement for oxidising gas or post deposition annealing. Photocatalytic testing for water oxidation revealed extremely high activity for PEC water splitting and photocatalytic water oxidation under visible light irradiation (λ > 420 nm) with a benchmark IPCE for BiFeO3 of 23% at 400 nm. The high activity is ascribed to the ultrafine morphology achieved via the LPCVD process. The performance was enhanced by over four times when the BiFeO3 photoanode is coupled to a Ni-B surface OEC.

AB - Phase-pure BiFeO3 films were grown directly via dual-source low-pressure CVD (LPCVD) from the ligand-matched precursors [Bi(OtBu)3] and [Fe(OtBu)3]2, without the requirement for oxidising gas or post deposition annealing. Photocatalytic testing for water oxidation revealed extremely high activity for PEC water splitting and photocatalytic water oxidation under visible light irradiation (λ > 420 nm) with a benchmark IPCE for BiFeO3 of 23% at 400 nm. The high activity is ascribed to the ultrafine morphology achieved via the LPCVD process. The performance was enhanced by over four times when the BiFeO3 photoanode is coupled to a Ni-B surface OEC.

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U2 - 10.1039/c5nr04804d

DO - 10.1039/c5nr04804d

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AN - SCOPUS:84942904107

SN - 2040-3364

VL - 7

SP - 16343

EP - 16353

JO - Nanoscale

JF - Nanoscale

IS - 39

ER -

Visible-light driven water splitting over BiFeO₃ photoanodes grown via the LPCVD reaction of [Bi(O^tBu)₃] and [Fe(O^tBu)₃]₂ and enhanced with a surface nickel oxygen evolution catalyst

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