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Efficient CuO/Ag2WO...
Efficient CuO/Ag2WO4 photoelectrodes for photoelectrochemical water splitting using solar visible radiation
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- Mustafa, Elfatih Mohammed (author)
- Linköpings universitet,Fysik, elektroteknik och matematik,Tekniska fakulteten
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- Dawi, E. A. (author)
- Ajman Univ, U Arab Emirates
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- Ibupoto, Z. H. (author)
- Univ Sindh, Pakistan
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- Ibrahim, A. M. M. (author)
- Jazan Univ, Saudi Arabia
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- Elsukova, Anna (author)
- Linköpings universitet,Tunnfilmsfysik,Tekniska fakulteten
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- Liu, Xianjie (author)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten
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- Tahira, A. (author)
- Shah Abdul Latif Univ Khairpur Mirs, Pakistan
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- Elhadi Adam, Rania Elhadi (author)
- Linköpings universitet,Fysik, elektroteknik och matematik,Tekniska fakulteten
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- Willander, Magnus (author)
- Linköpings universitet,Fysik, elektroteknik och matematik,Tekniska fakulteten
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- Nur, Omer (author)
- Linköpings universitet,Fysik, elektroteknik och matematik,Tekniska fakulteten
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(creator_code:org_t)
- ROYAL SOC CHEMISTRY, 2023
- 2023
- English.
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In: RSC Advances. - : ROYAL SOC CHEMISTRY. - 2046-2069. ; 13:17, s. 11297-11310
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https://doi.org/10.1...
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https://liu.diva-por... (primary) (Raw object)
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Abstract
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- 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.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Mustafa, Elfatih ...
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Dawi, E. A.
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Ibupoto, Z. H.
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Ibrahim, A. M. M ...
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Elsukova, Anna
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Liu, Xianjie
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show more...
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Tahira, A.
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Elhadi Adam, Ran ...
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Willander, Magnu ...
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Nur, Omer
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Materials Chemis ...
- Articles in the publication
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RSC Advances
- By the university
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Linköping University