Synergetic catalytic behavior of AgNi-OH-Pi nanostructures on Zr:BiVO4 photoanode for improved stability and photoelectrochemical water splitting performance

Maged N. Shaddad; Prabhakarn Arunachalam; Asma A. Alothman; Abeer M. Beagan; Matar N. Alshalwi; Abdullah M. Al-Mayouf

doi:10.1016/j.jcat.2019.01.024

Synergetic catalytic behavior of AgNi-OH-Pi nanostructures on Zr:BiVO₄ photoanode for improved stability and photoelectrochemical water splitting performance

Maged N. Shaddad, Prabhakarn Arunachalam, Asma A. Alothman, Abeer M. Beagan, Matar N. Alshalwi, Abdullah M. Al-Mayouf

King Saud University

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

27 Scopus citations

Abstract

Photoelectrocatalytic methodologies are attractive for the longstanding storage of renewable energy via direct transformation of solar energy into fuels and chemicals. Controlled electrodeposition of thin and homogeneous nickel hydroxylphosphate (Ni-OH-Pi) nanoparticle films on Zr:BiVO₄ photoanodes was achieved, wherein the Ni-OH-Pi co-catalyst increased the photoelectrochemical (PEC) water oxidation and stability of photoanodes comprising silver phosphate (AgPi) on Zr:BiVO₄ (AgNi-OH-Pi/Zr:BiVO₄). Evaluation of the optical, structural, and morphological properties revealed that the AgNi-OH-Pi/Zr:BiVO₄ photoanodes exhibited enhanced PEC behavior with photocurrent densities (J_ph) of ∼3.14 mA cm⁻² for water oxidation with long-term stability over 60 h and ∼4.15 mA cm⁻² for hydrogen peroxide (0.5 M H₂O₂) oxidation. The enhanced PEC of the fabricated AgNi-OH-Pi/Zr:BiVO₄ photoanodes was attributed to the synergetic influence of strong visible-light absorption, enhanced charge separation–transport, and exceptional surface properties. Considering their comparatively superior photocatalytic activity, the AgNi-OH-Pi/Zr:BiVO₄ photoanodes are potential electrode candidates in solar water splitting, dye-sensitized solar cells, and photocatalysis.

Original language	English
Pages (from-to)	10-19
Number of pages	10
Journal	Journal of Catalysis
Volume	371
DOIs	https://doi.org/10.1016/j.jcat.2019.01.024
State	Published - Mar 2019
Externally published	Yes

Keywords

Bismuth vanadate
Nickel hydroxylphosphate
Surface engineering
Water splitting

UN SDGs

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

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10.1016/j.jcat.2019.01.024

Cite this

@article{7f52173f4020481488baaa77f1d5f041,

title = "Synergetic catalytic behavior of AgNi-OH-Pi nanostructures on Zr:BiVO4 photoanode for improved stability and photoelectrochemical water splitting performance",

abstract = "Photoelectrocatalytic methodologies are attractive for the longstanding storage of renewable energy via direct transformation of solar energy into fuels and chemicals. Controlled electrodeposition of thin and homogeneous nickel hydroxylphosphate (Ni-OH-Pi) nanoparticle films on Zr:BiVO4 photoanodes was achieved, wherein the Ni-OH-Pi co-catalyst increased the photoelectrochemical (PEC) water oxidation and stability of photoanodes comprising silver phosphate (AgPi) on Zr:BiVO4 (AgNi-OH-Pi/Zr:BiVO4). Evaluation of the optical, structural, and morphological properties revealed that the AgNi-OH-Pi/Zr:BiVO4 photoanodes exhibited enhanced PEC behavior with photocurrent densities (Jph) of ∼3.14 mA cm−2 for water oxidation with long-term stability over 60 h and ∼4.15 mA cm−2 for hydrogen peroxide (0.5 M H2O2) oxidation. The enhanced PEC of the fabricated AgNi-OH-Pi/Zr:BiVO4 photoanodes was attributed to the synergetic influence of strong visible-light absorption, enhanced charge separation–transport, and exceptional surface properties. Considering their comparatively superior photocatalytic activity, the AgNi-OH-Pi/Zr:BiVO4 photoanodes are potential electrode candidates in solar water splitting, dye-sensitized solar cells, and photocatalysis.",

keywords = "Bismuth vanadate, Nickel hydroxylphosphate, Surface engineering, Water splitting",

author = "Shaddad, \{Maged N.\} and Prabhakarn Arunachalam and Alothman, \{Asma A.\} and Beagan, \{Abeer M.\} and Alshalwi, \{Matar N.\} and Al-Mayouf, \{Abdullah M.\}",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2019",

month = mar,

doi = "10.1016/j.jcat.2019.01.024",

language = "English",

volume = "371",

pages = "10--19",

journal = "Journal of Catalysis",

issn = "0021-9517",

publisher = "Academic Press Inc.",

}

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T1 - Synergetic catalytic behavior of AgNi-OH-Pi nanostructures on Zr:BiVO4 photoanode for improved stability and photoelectrochemical water splitting performance

AU - Shaddad, Maged N.

AU - Arunachalam, Prabhakarn

AU - Alothman, Asma A.

AU - Beagan, Abeer M.

AU - Alshalwi, Matar N.

AU - Al-Mayouf, Abdullah M.

PY - 2019/3

Y1 - 2019/3

N2 - Photoelectrocatalytic methodologies are attractive for the longstanding storage of renewable energy via direct transformation of solar energy into fuels and chemicals. Controlled electrodeposition of thin and homogeneous nickel hydroxylphosphate (Ni-OH-Pi) nanoparticle films on Zr:BiVO4 photoanodes was achieved, wherein the Ni-OH-Pi co-catalyst increased the photoelectrochemical (PEC) water oxidation and stability of photoanodes comprising silver phosphate (AgPi) on Zr:BiVO4 (AgNi-OH-Pi/Zr:BiVO4). Evaluation of the optical, structural, and morphological properties revealed that the AgNi-OH-Pi/Zr:BiVO4 photoanodes exhibited enhanced PEC behavior with photocurrent densities (Jph) of ∼3.14 mA cm−2 for water oxidation with long-term stability over 60 h and ∼4.15 mA cm−2 for hydrogen peroxide (0.5 M H2O2) oxidation. The enhanced PEC of the fabricated AgNi-OH-Pi/Zr:BiVO4 photoanodes was attributed to the synergetic influence of strong visible-light absorption, enhanced charge separation–transport, and exceptional surface properties. Considering their comparatively superior photocatalytic activity, the AgNi-OH-Pi/Zr:BiVO4 photoanodes are potential electrode candidates in solar water splitting, dye-sensitized solar cells, and photocatalysis.

AB - Photoelectrocatalytic methodologies are attractive for the longstanding storage of renewable energy via direct transformation of solar energy into fuels and chemicals. Controlled electrodeposition of thin and homogeneous nickel hydroxylphosphate (Ni-OH-Pi) nanoparticle films on Zr:BiVO4 photoanodes was achieved, wherein the Ni-OH-Pi co-catalyst increased the photoelectrochemical (PEC) water oxidation and stability of photoanodes comprising silver phosphate (AgPi) on Zr:BiVO4 (AgNi-OH-Pi/Zr:BiVO4). Evaluation of the optical, structural, and morphological properties revealed that the AgNi-OH-Pi/Zr:BiVO4 photoanodes exhibited enhanced PEC behavior with photocurrent densities (Jph) of ∼3.14 mA cm−2 for water oxidation with long-term stability over 60 h and ∼4.15 mA cm−2 for hydrogen peroxide (0.5 M H2O2) oxidation. The enhanced PEC of the fabricated AgNi-OH-Pi/Zr:BiVO4 photoanodes was attributed to the synergetic influence of strong visible-light absorption, enhanced charge separation–transport, and exceptional surface properties. Considering their comparatively superior photocatalytic activity, the AgNi-OH-Pi/Zr:BiVO4 photoanodes are potential electrode candidates in solar water splitting, dye-sensitized solar cells, and photocatalysis.

KW - Bismuth vanadate

KW - Nickel hydroxylphosphate

KW - Surface engineering

KW - Water splitting

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