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http://hdl.handle.net/10773/20544
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Fernandes, Diana M. | pt |
dc.contributor.author | Granadeiro, Carlos M. | pt |
dc.contributor.author | Paes de Sousa, Patricia M. | pt |
dc.contributor.author | Grazina, Raquel | pt |
dc.contributor.author | Moura, Jose J. G. | pt |
dc.contributor.author | Silva, Patricia | pt |
dc.contributor.author | Almeida Paz, Filipe A. | pt |
dc.contributor.author | Cunha-Silva, Luis | pt |
dc.contributor.author | Balula, Salete S. | pt |
dc.contributor.author | Freire, Cristina | pt |
dc.date.accessioned | 2017-12-07T19:50:52Z | - |
dc.date.issued | 2014 | pt |
dc.identifier.issn | 2196-0216 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/20544 | - |
dc.description.abstract | A novel composite is prepared by the incorporation of the iron-substituted silicotungstate [SiW11FeIII(H2O)O-39](5) (SiW11Fe) into the 3D structure of MIL-101(Cr). Pyrolytic graphite electrodes are modified with SiW11Fe and the composite material SiW11Fe@MIL-101, and the electrochemical behavior of the electrodes is studied by cyclic voltammetry. The SiW11Fe-modified electrode shows three reduction processes: the peak at more positive potentials is assigned to Fe-III -> FeII and the other two peaks to WVI ! WV processes. The SiW11Fe@ MIL-101-modi-fied electrode shows, besides the redox processes assigned to SiW11Fe, an additional peak from the MIL-101(Cr) matrix, which corresponds to CrIII ! CrII reduction. The SiW11Fe@ MIL-101-modified electrode shows excellent tungsten-based electrocatalytic activity towards nitrite and iodate reduction, and chromium- based electrocatalytic properties towards ascorbic acid oxidation. It, thus, ultimately proves to be a modified electrode with multi-electrocatalytic properties. | pt |
dc.language.iso | eng | pt |
dc.publisher | WILEY-V C H VERLAG GMBH | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/3599-PPCDT/132949/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/132936/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/5876-PPCDTI/100357/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/5876-PPCDTI/121677/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F74877%2F2010/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F73191%2F2010/PT | pt |
dc.rights | restrictedAccess | por |
dc.subject | METAL-ORGANIC FRAMEWORKS | pt |
dc.subject | ELECTROCHEMICAL PROPERTIES | pt |
dc.subject | SUBSTITUTED POLYOXOTUNGSTATES | pt |
dc.subject | HETEROGENEOUS CATALYSTS | pt |
dc.subject | MODIFIED ELECTRODES | pt |
dc.subject | CYCLIC VOLTAMMETRY | pt |
dc.subject | KEGGIN STRUCTURE | pt |
dc.subject | OXIDATION | pt |
dc.subject | REDUCTION | pt |
dc.subject | HETEROPOLYTUNGSTATES | pt |
dc.title | SiW11Fe@ MIL-101(Cr) Composite: A Novel and Versatile Electrocatalyst | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 1293 | pt |
degois.publication.issue | 8 | pt |
degois.publication.lastPage | 1300 | pt |
degois.publication.title | CHEMELECTROCHEM | pt |
degois.publication.volume | 1 | pt |
dc.date.embargo | 10000-01-01 | - |
dc.relation.publisherversion | 10.1002/celc.201402094 | pt |
dc.identifier.doi | 10.1002/celc.201402094 | pt |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
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SiW 11Fe@MIL-101(Cr) Composite A Novel and Versatile Electrocatalyst_10.1002celc.201402094.pdf | 1.55 MB | Adobe PDF |
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