Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.creator | Briand, Laura Estefania | - |
| dc.creator | Jehng, Jih-Mirn | - |
| dc.creator | Cornaglia, Laura Maria | - |
| dc.creator | Hirt, Andrew M. | - |
| dc.creator | Wachs, Israel E. | - |
| dc.date | 2018-10-17T16:09:23Z | - |
| dc.date | 2018-10-17T16:09:23Z | - |
| dc.date | 2003-02 | - |
| dc.date | 2018-10-12T18:07:28Z | - |
| dc.date.accessioned | 2019-04-29T15:52:11Z | - |
| dc.date.available | 2019-04-29T15:52:11Z | - |
| dc.date.issued | 2003-02 | - |
| dc.identifier | Briand, Laura Estefania; Jehng, Jih-Mirn; Cornaglia, Laura Maria; Hirt, Andrew M.; Wachs, Israel E.; Quantitative determination of the number of surface active sites and the turnover frequency for methanol oxidation over bulk metal vanadates; Elsevier Science; Catalysis Today; 78; 1-4 SPEC.; 2-2003; 257-268 | - |
| dc.identifier | 0920-5861 | - |
| dc.identifier | http://hdl.handle.net/11336/62557 | - |
| dc.identifier | CONICET Digital | - |
| dc.identifier | CONICET | - |
| dc.identifier.uri | http://rodna.bn.gov.ar:8080/jspui/handle/bnmm/304176 | - |
| dc.description | The present work investigates the number and nature of the surface active sites, selectivity and turnover frequency towards methanol selective oxidation of a series of bulk metal vanadates. The catalysts were synthesized through an organic route and characterized by laser Raman spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and specific surface area analysis (BET). The number of surface active sites (Ns) was determined by measuring the concentration of surface methoxy species adsorbed on the catalysts exposed to an atmosphere of 2000 ppm of methanol in helium at 100 °C. The specific activity values (TOFs) were calculated by normalizing the methanol oxidation reaction rate by the number of surface active sites probed by methanol chemisorption. The comparison of the methanol oxidation products distribution from bulk metal vanadates, pure V2O5 and corresponding metal oxides (NiO, MnO, etc.) strongly suggests that the metal vanadate catalysts consist of only surface vanadium oxide sites. The comparison of the TOF values demonstrated that bulk metal vanadates possess similar activity to monolayer vanadium oxide supported catalysts and are more active than bulk metal molybdates for methanol selective oxidation. Moreover, bulk metal vanadates are as active and selective as the commercial MoO3/Fe2(MoO4)3 catalysts at high methanol conversion. © 2002 Elsevier Science B.V. All rights reserved. | - |
| dc.description | Fil: Briand, Laura Estefania. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina | - |
| dc.description | Fil: Jehng, Jih-Mirn. National Chung Hsing University; República de China | - |
| dc.description | Fil: Cornaglia, Laura Maria. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina | - |
| dc.description | Fil: Hirt, Andrew M.. Materials Research Laboratories; Estados Unidos | - |
| dc.description | Fil: Wachs, Israel E.. Lehigh University; Estados Unidos | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.language | eng | - |
| dc.publisher | Elsevier Science | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0920586102003504 | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1016/S0920-5861(02)00350-4 | - |
| dc.rights | info:eu-repo/semantics/restrictedAccess | - |
| dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | - |
| dc.source | reponame:CONICET Digital (CONICET) | - |
| dc.source | instname:Consejo Nacional de Investigaciones Científicas y Técnicas | - |
| dc.source | instacron:CONICET | - |
| dc.subject | BULK MOLYBDATES | - |
| dc.subject | BULK VANADATES | - |
| dc.subject | CATALYSTS | - |
| dc.subject | METHANOL CHEMISORPTION | - |
| dc.subject | METHANOL OXIDATION | - |
| dc.subject | SUPPORTED MOLYBDENUM OXIDES | - |
| dc.subject | SUPPORTED VANADIUM OXIDES | - |
| dc.subject | SURFACE ACTIVE SITES | - |
| dc.subject | TURNOVER FREQUENCY | - |
| dc.subject | Otras Ingeniería Química | - |
| dc.subject | Ingeniería Química | - |
| dc.subject | INGENIERÍAS Y TECNOLOGÍAS | - |
| dc.title | Quantitative determination of the number of surface active sites and the turnover frequency for methanol oxidation over bulk metal vanadates | - |
| dc.type | info:eu-repo/semantics/article | - |
| dc.type | info:eu-repo/semantics/publishedVersion | - |
| dc.type | info:ar-repo/semantics/articulo | - |
| Aparece en las colecciones: | CONICET | |
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