Improved solar water splitting performance of BiVO4 photoanode by the synergistic effect of Zr-Mo co-doping and FeOOH Co-catalyst layer

Maged N. Shaddad; Mahmoud Hezam; Prabhakarn Arunachalam; Norah M. AL-Saeedan; Sixto Gimenez; Juan Bisquert; Abdullah M. Al-Mayouf

doi:10.1016/j.matlet.2022.132799

Improved solar water splitting performance of BiVO₄ photoanode by the synergistic effect of Zr-Mo co-doping and FeOOH Co-catalyst layer

Maged N. Shaddad, Mahmoud Hezam, Prabhakarn Arunachalam, Norah M. AL-Saeedan, Sixto Gimenez, Juan Bisquert, Abdullah M. Al-Mayouf

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8 Scopus citations

Abstract

In this work, Zr-Mo co-doping was successfully employed on electrochemically deposited BiVO₄ photoanodes, and tested for photoelectrochemical (PEC) water oxidation. Zr doping induced the formation of relatively smaller morphological features resulting in improved light absorption and PEC activity. Mo doping resulted in structural damage that enhanced the charge carrier separation and increased free carrier density. The synergetic effect of both dopants resulted in ∼5-fold enhancement of the PEC performance. When a FeOOH layer is hydrothermally grown on the Zr-Mo co-doped BiVO₄ electrode, the photocurrent density was enhanced by ∼13-fold achieving 3.34 mA/cm² at 1.23 V_RHE. In addition, the onset potential was remarkably reduced from ∼0.45 V to <0.1 V.

Original language	English
Article number	132799
Journal	Materials Letters
Volume	325
DOIs	https://doi.org/10.1016/j.matlet.2022.132799
State	Published - 15 Oct 2022
Externally published	Yes

Keywords

BiVO
Co-doping
Composite materials
Electrical properties
Semiconductors

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10.1016/j.matlet.2022.132799

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title = "Improved solar water splitting performance of BiVO4 photoanode by the synergistic effect of Zr-Mo co-doping and FeOOH Co-catalyst layer",

abstract = "In this work, Zr-Mo co-doping was successfully employed on electrochemically deposited BiVO4 photoanodes, and tested for photoelectrochemical (PEC) water oxidation. Zr doping induced the formation of relatively smaller morphological features resulting in improved light absorption and PEC activity. Mo doping resulted in structural damage that enhanced the charge carrier separation and increased free carrier density. The synergetic effect of both dopants resulted in ∼5-fold enhancement of the PEC performance. When a FeOOH layer is hydrothermally grown on the Zr-Mo co-doped BiVO4 electrode, the photocurrent density was enhanced by ∼13-fold achieving 3.34 mA/cm2 at 1.23 VRHE. In addition, the onset potential was remarkably reduced from ∼0.45 V to <0.1 V.",

keywords = "BiVO, Co-doping, Composite materials, Electrical properties, Semiconductors",

author = "Shaddad, \{Maged N.\} and Mahmoud Hezam and Prabhakarn Arunachalam and AL-Saeedan, \{Norah M.\} and Sixto Gimenez and Juan Bisquert and Al-Mayouf, \{Abdullah M.\}",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

month = oct,

day = "15",

doi = "10.1016/j.matlet.2022.132799",

language = "English",

volume = "325",

journal = "Materials Letters",

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T1 - Improved solar water splitting performance of BiVO4 photoanode by the synergistic effect of Zr-Mo co-doping and FeOOH Co-catalyst layer

AU - Shaddad, Maged N.

AU - Hezam, Mahmoud

AU - Arunachalam, Prabhakarn

AU - AL-Saeedan, Norah M.

AU - Gimenez, Sixto

AU - Bisquert, Juan

AU - Al-Mayouf, Abdullah M.

PY - 2022/10/15

Y1 - 2022/10/15

N2 - In this work, Zr-Mo co-doping was successfully employed on electrochemically deposited BiVO4 photoanodes, and tested for photoelectrochemical (PEC) water oxidation. Zr doping induced the formation of relatively smaller morphological features resulting in improved light absorption and PEC activity. Mo doping resulted in structural damage that enhanced the charge carrier separation and increased free carrier density. The synergetic effect of both dopants resulted in ∼5-fold enhancement of the PEC performance. When a FeOOH layer is hydrothermally grown on the Zr-Mo co-doped BiVO4 electrode, the photocurrent density was enhanced by ∼13-fold achieving 3.34 mA/cm2 at 1.23 VRHE. In addition, the onset potential was remarkably reduced from ∼0.45 V to <0.1 V.

AB - In this work, Zr-Mo co-doping was successfully employed on electrochemically deposited BiVO4 photoanodes, and tested for photoelectrochemical (PEC) water oxidation. Zr doping induced the formation of relatively smaller morphological features resulting in improved light absorption and PEC activity. Mo doping resulted in structural damage that enhanced the charge carrier separation and increased free carrier density. The synergetic effect of both dopants resulted in ∼5-fold enhancement of the PEC performance. When a FeOOH layer is hydrothermally grown on the Zr-Mo co-doped BiVO4 electrode, the photocurrent density was enhanced by ∼13-fold achieving 3.34 mA/cm2 at 1.23 VRHE. In addition, the onset potential was remarkably reduced from ∼0.45 V to <0.1 V.

KW - BiVO

KW - Co-doping

KW - Composite materials

KW - Electrical properties

KW - Semiconductors

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U2 - 10.1016/j.matlet.2022.132799

DO - 10.1016/j.matlet.2022.132799

M3 - Article

AN - SCOPUS:85134595763

SN - 0167-577X

VL - 325

JO - Materials Letters

JF - Materials Letters

M1 - 132799

ER -

Improved solar water splitting performance of BiVO₄ photoanode by the synergistic effect of Zr-Mo co-doping and FeOOH Co-catalyst layer

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Keywords

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