dc.creator | Arzac, G. M. | es |
dc.creator | Ramírez Rico, Joaquín | es |
dc.creator | Gutierrez Pardo, Antonio Anselmo | es |
dc.creator | Jiménez de Haro, María del Carmen | es |
dc.creator | Hufschmidt, Dirk | es |
dc.creator | Martínez Fernández, Julián | es |
dc.creator | Fernández Camacho, Alejandro | es |
dc.date.accessioned | 2018-04-04T07:04:43Z | |
dc.date.available | 2018-04-04T07:04:43Z | |
dc.date.issued | 2016 | |
dc.identifier.citation | Arzac, G.M., Ramírez Rico, J., Gutierrez Pardo, A.A., Jiménez de Haro, M.C., Hufschmidt, D., Martínez Fernández, J. y Fernández Camacho, A. (2016). Monolithic supports based on biomorphic SiC for the catalytic combustion of hydrogen. RSC Advances, 6, 1-12. | |
dc.identifier.issn | 2046-2069 | es |
dc.identifier.uri | https://hdl.handle.net/11441/71663 | |
dc.description.abstract | Catalytic hydrogen combustion was studied with H2/air mixtures in conditions that simulate the H2 concentration of the exhaust gases from fuel cells (3–4% v/v H2 in air). Pt-impregnated monoliths based on porous biomorphic SiC (bio-SiC) substrates were employed for the first time for this reaction. Capillary forces were exploited for the incipient impregnation of supports with H2PtCl6 solutions. Freeze drying permitted us to obtain a homogeneous distribution of the active phase reducing accumulation at the monolith's outer shell. The supports and catalysts were characterized from a structural and thermal point of view. Catalytic tests were performed in a homemade reactor fed with up to 1000 ml min 1 H2/air mixtures and a diffusional regime (non-isothermal) was achieved in the selected conditions. Catalyst loading was tested in the range of 0.25–1.5 wt% Pt and 100% conversion was achieved in all cases. Temperatures were recorded at different points of the monoliths during the reaction showing anisotropic thermal behavior for selected bio-SiC substrates. These effects are of interest for heat management applications and were explained in correlation with thermal conductivity measurements performed on the supports. Pt-impregnated monoliths were also tested in less than 100% conversion conditions (1% v/v H2 in air) and in powder form in kinetic conditions for comparative purposes | es |
dc.description.sponsorship | Junta de Andalucía FEDER PE2012-TEP862 | es |
dc.description.sponsorship | España Mineco FEDER CTQ2012-32519 CTQ2015-65918-R MAT2013-41233-R | es |
dc.description.sponsorship | CSIC PIE-201460E018 | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | Royal Society of Chemistry | es |
dc.relation.ispartof | RSC Advances, 6, 1-12. | |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.title | Monolithic supports based on biomorphic SiC for the catalytic combustion of hydrogen | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Física de la Materia Condensada | es |
dc.contributor.affiliation | Instituto de Ciencia de Materiales de Sevilla (ICMS) – CIC Cartuja | es |
dc.relation.projectID | PE2012-TEP862 | es |
dc.relation.projectID | CTQ2012-32519 | es |
dc.relation.projectID | CTQ2015-65918-R | es |
dc.relation.projectID | MAT2013-41233-R | es |
dc.relation.projectID | PIE-201460E018 | es |
dc.relation.publisherversion | http://dx.doi.org/10.1039/c6ra09127j | es |
dc.identifier.doi | 10.1039/c6ra09127j | es |
idus.format.extent | 12 p. | es |
dc.journaltitle | RSC Advances | es |
dc.publication.volumen | 6 | es |
dc.publication.initialPage | 1 | es |
dc.publication.endPage | 12 | es |