Photoelectrochemical Water Splitting with ITO/WO3/BiVO4/CoPi Multishell Nanotubes Enabled by a Vacuum and Plasma Soft-Template Synthesis
A common approach for the photoelectrochemical (PEC) splitting of water relies on the application of WO3 porous electrodes sensitized with BiVO4 acting as a visible photoanode semiconductor. In this work, we propose a new architecture of photoelectrodes consisting of supported multishell nanotubes (...
| Autores: | , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión enviada para evaluación y publicación |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/354931 |
| Acceso en línea: | http://hdl.handle.net/10261/354931 https://api.elsevier.com/content/abstract/scopus_id/85148050336 |
| Access Level: | acceso abierto |
| Palabra clave: | BiVO4 CoPi ITO WO3 Magnetron sputtering Multishell nanotubes (NTs) Oxygen evolution reaction (OER) Photoelectrochemistry (PEC) Soft template synthesis Water splitting http://vocabularies.unesco.org/thesaurus/concept640 |
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Photoelectrochemical Water Splitting with ITO/WO3/BiVO4/CoPi Multishell Nanotubes Enabled by a Vacuum and Plasma Soft-Template SynthesisGil-Rostra, J.Castillo-Seoane, JavierGuo, QianJorge Sobrido, Ana BelénGonzález-Elipe, Agustín R.Borrás, AnaBiVO4CoPiITOWO3Magnetron sputteringMultishell nanotubes (NTs)Oxygen evolution reaction (OER)Photoelectrochemistry (PEC)Soft template synthesisWater splittinghttp://vocabularies.unesco.org/thesaurus/concept640A common approach for the photoelectrochemical (PEC) splitting of water relies on the application of WO3 porous electrodes sensitized with BiVO4 acting as a visible photoanode semiconductor. In this work, we propose a new architecture of photoelectrodes consisting of supported multishell nanotubes (NTs) fabricated by a soft-template approach. These NTs are formed by a concentric layered structure of indium tin oxide (ITO), WO3, and BiVO4, together with a final thin layer of cobalt phosphate (CoPi) co-catalyst. The photoelectrode manufacturing procedure is easily implementable at a large scale and successively combines the thermal evaporation of single crystalline organic nanowires (ONWs), the magnetron sputtering deposition of ITO and WO3, and the solution dripping and electrochemical deposition of, respectively, BiVO4 and CoPi, plus the annealing in air under mild conditions. The obtained NT electrodes depict a large electrochemically active surface and outperform the efficiency of equivalent planar-layered electrodes by more than one order of magnitude. A thorough electrochemical analysis of the electrodes illuminated with blue and solar lights demonstrates that the characteristics of the WO3/BiVO4 Schottky barrier heterojunction control the NT electrode efficiency, which depended on the BiVO4 outer layer thickness and the incorporation of the CoPi electrocatalyst. These results support the high potential of the proposed soft-template methodology for the large-area fabrication of highly efficient multishell ITO/WO3/BiVO4/CoPi NT electrodes for the PEC splitting of water.The authors thank the project PID2019-110430GB-C21 funded by MCIN/AEI/10.13039/501100011033 and by “ERDF (FEDER) A way of making Europe,” by the “European Union”. The authors also want to thank CSIC for its financial support through the Intramural Project 202260E110. The project leading to this article has received funding from the EU H2020 program under the grant agreement 851929 (ERC Starting Grant 3DScavengers). Authors thank the ICMSE services for Electron Microscopy, X-Ray Diffraction and Surface Analysis, and the Center for Bioinnovation (University of Malaga) for the access to FESEM-FIB.NoAmerican Chemical SocietyMinisterio de Ciencia e Innovación (España)European CommissionAgencia Estatal de Investigación (España)Gil-Rostra, J.[0000-0002-4459-4088]Castillo-Seoane, Javier[0000-0002-8949-3010]Guo, Qian[0000-0002-4909-7822]Jorge Sobrido, Ana Belén[0000-0002-8798-4991]González-Elipe, Agustín R.[0000-0002-6417-1437]Borrás, Ana[0000-0001-8799-2054]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Preprintinfo:eu-repo/semantics/submittedVersionapplication/pdfhttp://hdl.handle.net/10261/354931https://api.elsevier.com/content/abstract/scopus_id/85148050336reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-110430GB-C21info:eu-repo/grantAgreement/EC/H2020/851929ACS applied materials & interfacesSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3549312026-05-22T06:33:51Z |
| dc.title.none.fl_str_mv |
Photoelectrochemical Water Splitting with ITO/WO3/BiVO4/CoPi Multishell Nanotubes Enabled by a Vacuum and Plasma Soft-Template Synthesis |
| title |
Photoelectrochemical Water Splitting with ITO/WO3/BiVO4/CoPi Multishell Nanotubes Enabled by a Vacuum and Plasma Soft-Template Synthesis |
| spellingShingle |
Photoelectrochemical Water Splitting with ITO/WO3/BiVO4/CoPi Multishell Nanotubes Enabled by a Vacuum and Plasma Soft-Template Synthesis Gil-Rostra, J. BiVO4 CoPi ITO WO3 Magnetron sputtering Multishell nanotubes (NTs) Oxygen evolution reaction (OER) Photoelectrochemistry (PEC) Soft template synthesis Water splitting http://vocabularies.unesco.org/thesaurus/concept640 |
| title_short |
Photoelectrochemical Water Splitting with ITO/WO3/BiVO4/CoPi Multishell Nanotubes Enabled by a Vacuum and Plasma Soft-Template Synthesis |
| title_full |
Photoelectrochemical Water Splitting with ITO/WO3/BiVO4/CoPi Multishell Nanotubes Enabled by a Vacuum and Plasma Soft-Template Synthesis |
| title_fullStr |
Photoelectrochemical Water Splitting with ITO/WO3/BiVO4/CoPi Multishell Nanotubes Enabled by a Vacuum and Plasma Soft-Template Synthesis |
| title_full_unstemmed |
Photoelectrochemical Water Splitting with ITO/WO3/BiVO4/CoPi Multishell Nanotubes Enabled by a Vacuum and Plasma Soft-Template Synthesis |
| title_sort |
Photoelectrochemical Water Splitting with ITO/WO3/BiVO4/CoPi Multishell Nanotubes Enabled by a Vacuum and Plasma Soft-Template Synthesis |
| dc.creator.none.fl_str_mv |
Gil-Rostra, J. Castillo-Seoane, Javier Guo, Qian Jorge Sobrido, Ana Belén González-Elipe, Agustín R. Borrás, Ana |
| author |
Gil-Rostra, J. |
| author_facet |
Gil-Rostra, J. Castillo-Seoane, Javier Guo, Qian Jorge Sobrido, Ana Belén González-Elipe, Agustín R. Borrás, Ana |
| author_role |
author |
| author2 |
Castillo-Seoane, Javier Guo, Qian Jorge Sobrido, Ana Belén González-Elipe, Agustín R. Borrás, Ana |
| author2_role |
author author author author author |
| dc.contributor.none.fl_str_mv |
Ministerio de Ciencia e Innovación (España) European Commission Agencia Estatal de Investigación (España) Gil-Rostra, J.[0000-0002-4459-4088] Castillo-Seoane, Javier[0000-0002-8949-3010] Guo, Qian[0000-0002-4909-7822] Jorge Sobrido, Ana Belén[0000-0002-8798-4991] González-Elipe, Agustín R.[0000-0002-6417-1437] Borrás, Ana[0000-0001-8799-2054] Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
BiVO4 CoPi ITO WO3 Magnetron sputtering Multishell nanotubes (NTs) Oxygen evolution reaction (OER) Photoelectrochemistry (PEC) Soft template synthesis Water splitting http://vocabularies.unesco.org/thesaurus/concept640 |
| topic |
BiVO4 CoPi ITO WO3 Magnetron sputtering Multishell nanotubes (NTs) Oxygen evolution reaction (OER) Photoelectrochemistry (PEC) Soft template synthesis Water splitting http://vocabularies.unesco.org/thesaurus/concept640 |
| description |
A common approach for the photoelectrochemical (PEC) splitting of water relies on the application of WO3 porous electrodes sensitized with BiVO4 acting as a visible photoanode semiconductor. In this work, we propose a new architecture of photoelectrodes consisting of supported multishell nanotubes (NTs) fabricated by a soft-template approach. These NTs are formed by a concentric layered structure of indium tin oxide (ITO), WO3, and BiVO4, together with a final thin layer of cobalt phosphate (CoPi) co-catalyst. The photoelectrode manufacturing procedure is easily implementable at a large scale and successively combines the thermal evaporation of single crystalline organic nanowires (ONWs), the magnetron sputtering deposition of ITO and WO3, and the solution dripping and electrochemical deposition of, respectively, BiVO4 and CoPi, plus the annealing in air under mild conditions. The obtained NT electrodes depict a large electrochemically active surface and outperform the efficiency of equivalent planar-layered electrodes by more than one order of magnitude. A thorough electrochemical analysis of the electrodes illuminated with blue and solar lights demonstrates that the characteristics of the WO3/BiVO4 Schottky barrier heterojunction control the NT electrode efficiency, which depended on the BiVO4 outer layer thickness and the incorporation of the CoPi electrocatalyst. These results support the high potential of the proposed soft-template methodology for the large-area fabrication of highly efficient multishell ITO/WO3/BiVO4/CoPi NT electrodes for the PEC splitting of water. |
| publishDate |
2023 |
| dc.date.none.fl_str_mv |
2023 2024 2024 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 Preprint info:eu-repo/semantics/submittedVersion |
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article |
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submittedVersion |
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http://hdl.handle.net/10261/354931 https://api.elsevier.com/content/abstract/scopus_id/85148050336 |
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http://hdl.handle.net/10261/354931 https://api.elsevier.com/content/abstract/scopus_id/85148050336 |
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Inglés |
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Inglés |
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