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Targeted design of organic Janus particles for improved photocatalytic hydrogen evolution
| dc.rights.license | open | en_US |
| hal.structure.identifier | Institut des Sciences Moléculaires [ISM] | |
| dc.contributor.author | MISSAOUI, Khaoula | |
| hal.structure.identifier | Laboratoire de l'intégration, du matériau au système [IMS] | |
| dc.contributor.author | WANTZ, Guillaume
IDREF: inp | |
| hal.structure.identifier | Institut des Sciences Moléculaires [ISM] | |
| dc.contributor.author | TOUPANCE, Thierry
IDREF: 113325606 | |
| hal.structure.identifier | Laboratoire de l'intégration, du matériau au système [IMS] | |
| dc.contributor.author | CHAMBON, Sylvain
IDREF: 113700431 | |
| hal.structure.identifier | Institut des Sciences Moléculaires [ISM] | |
| dc.contributor.author | KUHN, Alexander | |
| dc.date.accessioned | 2025-09-29T07:59:57Z | |
| dc.date.available | 2025-09-29T07:59:57Z | |
| dc.date.issued | 2025 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/207675 | |
| dc.description.abstractEn | Organic bulk heterojunction particles are decorated in a well-controlled way with metals by using light-assisted bipolar electrodeposition to yield Janus particles. Their asymmetric character leads to significantly enhanced photocatalytic hydrogen evolution reaction. The organic particles are first synthesized via miniemulsion, tuning their size by carefully controlling various preparation parameters. Subsequently, the synergistic effect of an electric field and light is explored for the site-selective bipolar electrochemical deposition of different metals (Pt, Au or Pd). Photocatalytic tests reveal that in the case of platinum, the resulting Janus particles significantly outperform particles randomly covered with metal, as well as unmodified particles, showing an increase in hydrogen evolution efficiency by up to 500%. This superior performance is attributed to an enhanced charge carrier separation in the Janus structure, where Pt, confined at one side, facilitates more efficient electron shuttling and transfer. This work constitutes the first study reporting a promising approach for designing novel metal-organic Janus particles to boost photocatalytic hydrogen evolution and opens up new perspectives for optimizing the design of various other hybrid systems for sustainable energy conversion. | |
| dc.language.iso | EN | en_US |
| dc.rights | Attribution-NonCommercial 3.0 United States | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc/3.0/us/ | * |
| dc.title.en | Targeted design of organic Janus particles for improved photocatalytic hydrogen evolution | |
| dc.type | Article de revue | en_US |
| dc.identifier.doi | 10.1039/d5sc00802f | en_US |
| dc.subject.hal | Sciences de l'ingénieur [physics] | en_US |
| bordeaux.journal | Chemical Science | en_US |
| bordeaux.page | 10691-10700 | en_US |
| bordeaux.volume | 16 | en_US |
| bordeaux.hal.laboratories | IMS : Laboratoire de l'Intégration du Matériau au Système - UMR 5218 | en_US |
| bordeaux.issue | 24 | en_US |
| bordeaux.institution | Université de Bordeaux | en_US |
| bordeaux.institution | Bordeaux INP | en_US |
| bordeaux.institution | CNRS | en_US |
| bordeaux.team | ORGANICS ELECTRONICS - ELORGA | en_US |
| bordeaux.peerReviewed | oui | en_US |
| bordeaux.inpress | non | en_US |
| bordeaux.import.source | crossref | |
| hal.identifier | hal-05288089 | |
| hal.version | 1 | |
| hal.date.transferred | 2025-09-29T07:59:59Z | |
| hal.popular | non | en_US |
| hal.audience | Internationale | en_US |
| hal.export | true | |
| workflow.import.source | crossref | |
| dc.rights.cc | CC BY-NC | en_US |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Chemical%20Science&rft.date=2025&rft.volume=16&rft.issue=24&rft.spage=10691-10700&rft.epage=10691-10700&rft.au=MISSAOUI,%20Khaoula&WANTZ,%20Guillaume&TOUPANCE,%20Thierry&CHAMBON,%20Sylvain&KUHN,%20Alexander&rft.genre=article |