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Study of the fluorination of carbon anode in molten KF-2HF by XPS and NMR investigations

hal.structure.identifierLiquides Ioniques et Interfaces Chargées [LI2C]
dc.contributor.authorCRASSOUS, I.
hal.structure.identifierLiquides Ioniques et Interfaces Chargées [LI2C]
dc.contributor.authorGROULT, Henri
hal.structure.identifierLiquides Ioniques et Interfaces Chargées [LI2C]
dc.contributor.authorLANTELME, Frédéric
hal.structure.identifierLiquides Ioniques et Interfaces Chargées [LI2C]
dc.contributor.authorDEVILLIERS, Didier
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorTRESSAUD, Alain
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorLABRUGÈRE, Christine
hal.structure.identifierLaboratoire des Matériaux Inorganiques [LMI]
dc.contributor.authorDUBOIS, M.
hal.structure.identifierLaboratoire Research and Development
dc.contributor.authorBELHOMME, C.
hal.structure.identifierLaboratoire Research and Development
dc.contributor.authorCOLISSON, A.
hal.structure.identifierLaboratoire Research and Development
dc.contributor.authorMOREL, B.
dc.date.issued2009
dc.identifier.issn0022-1139
dc.description.abstractEnDuring the electrolysis of molten KH-2HF, a solid CF film is formed on carbon anodes. The influence of the potential applied to the anode on the composition of the CF surface film was studied by XPS and NMR. Results obtained with carbon electrochemically passivated in molten KF-2HF have been compared with those obtained with carbon simply immersed in molten KF-2HF without any polarization. Whatever the potential, and even in the case of carbon sample immersed in molten KF-2HF without any polarization, the presence of covalent and semi-ionic C–F bonds has been pointed out both by XPS and NMR. For polarized samples, the higher the potential applied to the anode in KF-2HF, the higher the fluorination level. From investigations carried out with carbon activated at 40 V in molten KF-2HF, it was concluded that the electropolishing of the surface induced by this treatment allows enhancing drastically the fluorine evolution reaction.
dc.language.isoen
dc.publisherElsevier
dc.subject.enFluorine
dc.subject.enKF-2HF
dc.subject.enXPS
dc.subject.enNMR
dc.subject.enCarbon
dc.title.enStudy of the fluorination of carbon anode in molten KF-2HF by XPS and NMR investigations
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jfluchem.2009.07.022
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Fluorine Chemistry
bordeaux.page1080-1085
bordeaux.volume130
bordeaux.issue12
bordeaux.peerReviewedoui
hal.identifierhal-00442690
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00442690v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Fluorine%20Chemistry&rft.date=2009&rft.volume=130&rft.issue=12&rft.spage=1080-1085&rft.epage=1080-1085&rft.eissn=0022-1139&rft.issn=0022-1139&rft.au=CRASSOUS,%20I.&GROULT,%20Henri&LANTELME,%20Fr%C3%A9d%C3%A9ric&DEVILLIERS,%20Didier&TRESSAUD,%20Alain&rft.genre=article


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