Photoelectrochemical Response of WO3/Nanoporous Carbon Anodes for Photocatalytic Water Oxidation

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Title: Photoelectrochemical Response of WO3/Nanoporous Carbon Anodes for Photocatalytic Water Oxidation
Authors: Gomis Berenguer, Alicia | Iniesta, Jesus | Fermin, David J. | Ania, Conchi O.
Research Group/s: Electroquímica Aplicada y Electrocatálisis
Center, Department or Service: Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Instituto Universitario de Electroquímica
Keywords: WO3/nanoporous carbon photoanodes | Water oxidation | Photoelectrochemistry
Knowledge Area: Química Física
Issue Date: 10-Aug-2018
Publisher: MDPI
Citation: Gomis-Berenguer A, Iniesta J, Fermín DJ, Ania CO. Photoelectrochemical Response of WO3/Nanoporous Carbon Anodes for Photocatalytic Water Oxidation. C — Journal of Carbon Research. 2018; 4(3):45. doi:10.3390/c4030045
Abstract: This work demonstrates the ability of nanoporous carbons to boost the photoelectrochemical activity of hexagonal and monoclinic WO3 towards water oxidation under irradiation. The impact of the carbonaceous phase was strongly dependent on the crystalline structure and morphology of the semiconductor, substantially increasing the activity of WO3 rods with hexagonal phase. The incorporation of increasing amounts of a nanoporous carbon of low functionalization to the WO3 electrodes improved the quantum yield of the reaction and also affected the dynamics of the charge transport, creating a percolation path for the majority carriers. The nanoporous carbon promotes the delocalization of the charge carriers through the graphitic layers. We discuss the incorporation of nanoporous carbons as an interesting strategy for improving the photoelectrochemical performance of nanostructured semiconductor photoelectrodes featuring hindered carrier transport.
Sponsor: European Council Research through a Consolidator Grant (ERC-CoG-648161, PHOROSOL). D.J.F. acknowledges the support by the Engineering and Physical Sciences Research Council (Grant EP/L017792/1).
URI: http://hdl.handle.net/10045/96267
ISSN: 2311-5629
DOI: 10.3390/c4030045
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Peer Review: si
Publisher version: https://doi.org/10.3390/c4030045
Appears in Collections:INV - LEQA - Artículos de Revistas

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