Macroporous silicon coated with M/TiO2 (M=Au,Pt) as a highly efficient photoreactor for hydrogen production
Macroporous silicon disks containing ordered channels of 2 µm side and 0.2 mm length (9 × 106 channels cm-2) have been functionalized with a thin layer of Au/TiO2 and Pt/TiO2 photocatalysts and tested in the photoproduction of hydrogen using UV light from water-ethanol mixtures in gas phase. An outs...
| Autores: | , , , , |
|---|---|
| Formato: | artículo |
| Fecha de publicación: | 2020 |
| País: | España |
| Recursos: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/186800 |
| Acesso em linha: | https://hdl.handle.net/2117/186800 https://dx.doi.org/10.1016/j.cej.2020.124701 |
| Access Level: | acceso abierto |
| Palavra-chave: | Photocatalysis Hydrogen Photoreactor Microreactor Macroporous silicon Fotocatàlisi Microreactors Hidrogen Silici Àrees temàtiques de la UPC::Física |
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ES_051c5e780efdc00aaff844a5cfcccc1c |
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oai:upcommons.upc.edu:2117/186800 |
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ES |
| network_name_str |
España |
| spelling |
Macroporous silicon coated with M/TiO2 (M=Au,Pt) as a highly efficient photoreactor for hydrogen production Serafin, Jaroslaw|||0000-0003-3719-8762 Soler Turu, Lluís|||0000-0003-1591-3366 Vega Bru, Didac|||0009-0005-5699-466X Rodríguez Martínez, Ángel|||0000-0002-0890-0842 Llorca Piqué, Jordi|||0000-0002-7447-9582 Photocatalysis Hydrogen Photoreactor Microreactor Macroporous silicon Fotocatàlisi Microreactors Hidrogen Silici Àrees temàtiques de la UPC::Física Macroporous silicon disks containing ordered channels of 2 µm side and 0.2 mm length (9 × 106 channels cm-2) have been functionalized with a thin layer of Au/TiO2 and Pt/TiO2 photocatalysts and tested in the photoproduction of hydrogen using UV light from water-ethanol mixtures in gas phase. An outstanding hydrogen production rate of 212 µmol h-1 cm-3reactor is demonstrated, which is three orders of magnitude higher than those achieved in conventional photoreactors. According to the simulation results, the fabulous hydrogen production rates obtained with the macroporous silicon photocatalytic structures are ascribed to an extraordinary high specific surface area per volume unit and to an enhanced light exploitation. This new microphotoreactor concept could boost the production of solar hydrogen for on-site and portable applications Peer Reviewed https://hdl.handle.net/2117/186800 https://dx.doi.org/10.1016/j.cej.2020.124701 |
| title |
Macroporous silicon coated with M/TiO2 (M=Au,Pt) as a highly efficient photoreactor for hydrogen production |
| spellingShingle |
Macroporous silicon coated with M/TiO2 (M=Au,Pt) as a highly efficient photoreactor for hydrogen production Serafin, Jaroslaw|||0000-0003-3719-8762 Photocatalysis Hydrogen Photoreactor Microreactor Macroporous silicon Fotocatàlisi Microreactors Hidrogen Silici Àrees temàtiques de la UPC::Física |
| title_short |
Macroporous silicon coated with M/TiO2 (M=Au,Pt) as a highly efficient photoreactor for hydrogen production |
| title_full |
Macroporous silicon coated with M/TiO2 (M=Au,Pt) as a highly efficient photoreactor for hydrogen production |
| title_fullStr |
Macroporous silicon coated with M/TiO2 (M=Au,Pt) as a highly efficient photoreactor for hydrogen production |
| title_full_unstemmed |
Macroporous silicon coated with M/TiO2 (M=Au,Pt) as a highly efficient photoreactor for hydrogen production |
| title_sort |
Macroporous silicon coated with M/TiO2 (M=Au,Pt) as a highly efficient photoreactor for hydrogen production |
| author |
Serafin, Jaroslaw|||0000-0003-3719-8762 |
| author_facet |
Serafin, Jaroslaw|||0000-0003-3719-8762 Soler Turu, Lluís|||0000-0003-1591-3366 Vega Bru, Didac|||0009-0005-5699-466X Rodríguez Martínez, Ángel|||0000-0002-0890-0842 Llorca Piqué, Jordi|||0000-0002-7447-9582 |
| author_role |
author |
| author2 |
Soler Turu, Lluís|||0000-0003-1591-3366 Vega Bru, Didac|||0009-0005-5699-466X Rodríguez Martínez, Ángel|||0000-0002-0890-0842 Llorca Piqué, Jordi|||0000-0002-7447-9582 |
| author2_role |
author author author author |
| topic |
Photocatalysis Hydrogen Photoreactor Microreactor Macroporous silicon Fotocatàlisi Microreactors Hidrogen Silici Àrees temàtiques de la UPC::Física |
| topic_facet |
Photocatalysis Hydrogen Photoreactor Microreactor Macroporous silicon Fotocatàlisi Microreactors Hidrogen Silici Àrees temàtiques de la UPC::Física |
| description |
Macroporous silicon disks containing ordered channels of 2 µm side and 0.2 mm length (9 × 106 channels cm-2) have been functionalized with a thin layer of Au/TiO2 and Pt/TiO2 photocatalysts and tested in the photoproduction of hydrogen using UV light from water-ethanol mixtures in gas phase. An outstanding hydrogen production rate of 212 µmol h-1 cm-3reactor is demonstrated, which is three orders of magnitude higher than those achieved in conventional photoreactors. According to the simulation results, the fabulous hydrogen production rates obtained with the macroporous silicon photocatalytic structures are ascribed to an extraordinary high specific surface area per volume unit and to an enhanced light exploitation. This new microphotoreactor concept could boost the production of solar hydrogen for on-site and portable applications |
| publishDate |
2020 |
| format |
article |
| url |
https://hdl.handle.net/2117/186800 https://dx.doi.org/10.1016/j.cej.2020.124701 |
| language |
eng |
| eu_rights_str_mv |
openAccess |
| institution |
Universitat Politècnica de Catalunya (UPC) |
| collection |
UPCommons. Portal del coneixement obert de la UPC |
| reponame_str |
UPCommons. Portal del coneixement obert de la UPC |
| instname_str |
Universitat Politècnica de Catalunya (UPC) |
| _version_ |
1878729294094532608 |
| publishDateSort |
2020 |
| author_browse |
Llorca Piqué, Jordi|||0000-0002-7447-9582 Rodríguez Martínez, Ángel|||0000-0002-0890-0842 Serafin, Jaroslaw|||0000-0003-3719-8762 Soler Turu, Lluís|||0000-0003-1591-3366 Vega Bru, Didac|||0009-0005-5699-466X |
| score |
6,8972664 |