Efficient CuO/Ag2WO4 photoelectrodes for photoelectrochemical water splitting using solar visible radiation

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Mustafa, Elfatih MohammedLinköpings universitet,Fysik, elektroteknik och matematik,Tekniska fakulteten (author)

Efficient CuO/Ag2WO4 photoelectrodes for photoelectrochemical water splitting using solar visible radiation

Article/chapterEnglish2023

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ROYAL SOC CHEMISTRY,2023
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LIBRIS-ID:oai:DiVA.org:liu-193380
https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-193380URI
https://doi.org/10.1039/d3ra00867cDOI

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Language:English
Summary in:English

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Subject category:art swepub-publicationtype

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Funding Agencies|department of Science and Technology (ITN), at Campus Norrkoping; Linkoping University, Sweden; Ajman University [2022-IRG-HBS-5, 2022-RTG-02]; National Research Infrastructure for Advanced Electron Microscopy (ARTEMI)
Water splitting energy production relies heavily on the development of high-performance photoelectrochemical cells (PECs). Among the most highly regarded semiconductor materials, cupric oxide (CuO) is an excellent photocathode material. Pristine CuO does not perform well as a photocathode due to its tendency to recombine electrons and holes rapidly. Photocathodes with high efficiency can be produced by developing CuO-based composite systems. The aim of our research is to develop an Ag2WO4/CuO composite by incorporating silver tungstate (Ag2WO4) nanoparticles onto hydrothermally grown CuO nanoleaves (NLs) by successive ionic layer adsorption and reaction (SILAR). To prepare CuO/Ag2WO4 composites, SILAR was used in conjunction with different Ag2WO4 nanoparticle deposition cycles. Physicochemical characterization reveals well-defined nanoleaves morphologies with tailored surface compositions. Composite CuO/Ag2WO4 crystal structures are governed by the monoclinic phase of CuO and the hexagonal phase of Ag2WO4. It has been demonstrated that the CuO/Ag2WO4 composite has outstanding performance in the PEC water splitting process when used with five cycles. In the CuO/Ag2WO4 photocathode, water splitting activity is observed at low overpotential and high photocurrent density, indicating that the reaction takes place at low energy barriers. Several factors contribute to PEC performance in composites. These factors include the high density of surface active sites, the high charge separation rate, the presence of favourable surface defects, and the synergy of CuO and Ag2WO4 photoreaction. By using SILAR, silver tungstate can be deposited onto semiconducting materials with strong visible absorption, enabling the development of energy-efficient photocathodes.

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NATURVETENSKAP Kemi Materialkemi hsv//swe
NATURAL SCIENCES Chemical Sciences Materials Chemistry hsv//eng

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Dawi, E. A.Ajman Univ, U Arab Emirates (author)
Ibupoto, Z. H.Univ Sindh, Pakistan (author)
Ibrahim, A. M. M.Jazan Univ, Saudi Arabia (author)
Elsukova, AnnaLinköpings universitet,Tunnfilmsfysik,Tekniska fakulteten(Swepub:liu)annel38 (author)
Liu, XianjieLinköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten(Swepub:liu)xiali21 (author)
Tahira, A.Shah Abdul Latif Univ Khairpur Mirs, Pakistan (author)
Elhadi Adam, Rania ElhadiLinköpings universitet,Fysik, elektroteknik och matematik,Tekniska fakulteten(Swepub:liu)ranel37 (author)
Willander, MagnusLinköpings universitet,Fysik, elektroteknik och matematik,Tekniska fakulteten(Swepub:liu)magwi72 (author)
Nur, OmerLinköpings universitet,Fysik, elektroteknik och matematik,Tekniska fakulteten(Swepub:liu)omeno75 (author)
Linköpings universitetFysik, elektroteknik och matematik (creator_code:org_t)

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In:RSC Advances: ROYAL SOC CHEMISTRY13:17, s. 11297-113102046-2069

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By the author/editor: Mustafa, Elfatih ...; Dawi, E. A.; Ibupoto, Z. H.; Ibrahim, A. M. M ...; Elsukova, Anna; Liu, Xianjie; show more...; Tahira, A.; Elhadi Adam, Ran ...; Willander, Magnu ...; Nur, Omer; show less...

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NATURAL SCIENCES: NATURAL SCIENCES; and Chemical Science ...; and Materials Chemis ...

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