Enhancing the Optical Absorption and Interfacial Properties of BiVO4 with Ag3PO4 Nanoparticles for Efficient Water Splitting
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Altres documents de l'autoria: Shaddad, Maged; Cardenas-Morcoso, Drialys; Arunachalam, Prabhakarn; García-Tecedor, Miguel; Ghanem, Mohamed A.; Bisquert, Juan; Al-Mayouf, Abdullah; Gimenez, Sixto
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Enhancing the Optical Absorption and Interfacial Properties of BiVO4 with Ag3PO4 Nanoparticles for Efficient Water SplittingAutoria
Data de publicació
2018-05Editor
American Chemical SocietyCita bibliogràfica
SHADDAD, Maged N., et al. Enhancing the Optical Absorption and Interfacial Properties of BiVO4 with Ag3PO4 Nanoparticles for Efficient Water Splitting. The Journal of Physical Chemistry C, 2018, 122 (22), pp 11608–11615Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
https://pubs.acs.org/doi/abs/10.1021/acs.jpcc.8b00738Versió
info:eu-repo/semantics/acceptedVersionParaules clau / Matèries
Resum
Photoelectrochemical water splitting using semiconductor materials has emerged as a promising approach to produce hydrogen (H2) from renewable resources such as sunlight and water. In the present study, Ag3PO4 nanop ... [+]
Photoelectrochemical water splitting using semiconductor materials has emerged as a promising approach to produce hydrogen (H2) from renewable resources such as sunlight and water. In the present study, Ag3PO4 nanoparticles were electrodeposited on BiVO4 photoanodes for water splitting. A remarkable water oxidation photocurrent of 2.3 mA·cm–2 at 1.23 V versus reversible hydrogen electrode with ∼100% Faradaic efficiency was obtained, which constitutes a notable increase compared to the pristine BiVO4 photoanode. It is demonstrated that the enhancement of optical absorption (above-band gap absorbance) and the decrease of surface losses after the optimized deposition of Ag/Ag3PO4 nanoparticles are responsible for this notable performance. Remarkably, this heterostructure shows promising stability, demonstrating 25% decrease of photocurrent after 24 h continuous operation. This approach may open new avenues for technologically exploitable water oxidation photoanodes based on metal oxides. [-]
Proyecto de investigación
Deanship of Scientific Research at King Saud University (RG-1438-001) ; University Jaume I (P11B2014-51 and SOLENPEUJI-B2016-05) ; Generalitat Valenciana (Santiago Grisolia Program, grant 2015-031)Drets d'accés
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