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DC Field | Value | Language |
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dc.contributor.author | Xia, Pan | - |
dc.contributor.author | Zhao, Lele | - |
dc.contributor.author | Chen, Xi | - |
dc.contributor.author | Ye, Zhihong | - |
dc.contributor.author | Zheng, Zhihong. | - |
dc.contributor.author | He, Qiang | - |
dc.contributor.author | Sirés Sadornil, Ignacio | - |
dc.date.accessioned | 2024-01-31T13:24:08Z | - |
dc.date.available | 2024-01-31T13:24:08Z | - |
dc.date.issued | 2023-11-04 | - |
dc.identifier.issn | 0926-3373 | - |
dc.identifier.uri | http://hdl.handle.net/2445/206789 | - |
dc.description.abstract | On-site H2O2 electrosynthesis via two-electron oxygen reduction reaction (ORR) is attracting great interest forwater treatment. The use of carbon black-based gas-diffusion electrodes (GDEs) is especially appealing, but theiractivity, selectivity and long-term stability must be improved. Here, a facile GDEs modification strategy usingtrace polymethylhydrosiloxane (PMHS) allowed reaching a outstanding H2O2 production, outperforming theconventional polytetrafluoroethylene (PTFE)-GDE (1874.8 vs 1087.4 mg L-1 at 360 min). The superhydrophobicityconferred by PMHS endowed the catalytic layer with high faradaic efficiencies (76.2%-89.7%)during long-term operation for 60 h. The electrochemical tests confirmed the high activity and selectivity of thePMHS-modified GDE. Moreover, the efficient degradation of several micropollutants by the electro-Fentonprocess demonstrated the great potential of the new GDE. An in-depth understanding of the roles of PMHSfunctional groups is provided from DFT calculations: the -CH3 groups contribute to form a superhydrophobicinterface, whereas Si-H and as-formed Si-O-C sites modulate the coordination environment of active carboncenters. | - |
dc.format.extent | 11 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier B.V. | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1016/j.apcatb.2023.123467 | - |
dc.relation.ispartof | Applied Catalysis B-Environmental, 2023, vol. 343, p. 1-11 | - |
dc.relation.uri | https://doi.org/10.1016/j.apcatb.2023.123467 | - |
dc.rights | cc-by-nc-nd (c) Xia, P. et al., 2023 | - |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | - |
dc.source | Articles publicats en revistes (Ciència dels Materials i Química Física) | - |
dc.subject.classification | Depuració de l'aigua | - |
dc.subject.classification | Reacció d'oxidació-reducció | - |
dc.subject.classification | Electroquímica | - |
dc.subject.other | Water purification | - |
dc.subject.other | Oxidation-reduction reaction | - |
dc.subject.other | Electrochemistry | - |
dc.title | Polymethylhydrosiloxane-modified gas-diffusion cathode for more efficient and durable H2O2 electrosynthesis in the context of water treatment | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 740471 | - |
dc.date.updated | 2024-01-31T13:24:09Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Ciència dels Materials i Química Física) |
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