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Catalysts based on Co-Birnessite and Co-Todorokite for the efficient production of hydrogen by ethanol steam reforming

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Catalysts based on Co-Birnessite and Co-Todorokite for the efficient production of hydrogen by ethanol steam reforming

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dc.contributor.author Da Costa Serra, Javier Francisco es_ES
dc.contributor.author Chica, Antonio es_ES
dc.date.accessioned 2020-01-30T21:01:54Z
dc.date.available 2020-01-30T21:01:54Z
dc.date.issued 2018 es_ES
dc.identifier.issn 0360-3199 es_ES
dc.identifier.uri http://hdl.handle.net/10251/136095
dc.description.abstract [EN] Two structured manganese oxides (Birnessite and Todorokite) containing Co have been studied in the steam reforming of ethanol. It has been found that both materials are active in the hydrogen production, exhibiting high values of conversion of ethanol and selectivities to hydrogen (100% and 70%, respectively). The best results have been obtained with the catalyst based on Todorokite material. Characterization by DRX, BET area, TPR and TEM has allowed to find that the excellent performance exhibited by this material could be attributed to the lower size of the Co metallic particles present in this sample (6 nm vs 12 nm in Birnessite). This lower size could be related to the especial microporous structure of Todorokite precursor, which could provide high-quality positions for the stabilization of the Co metal particles during calcination and reduction steps. Catalytic deactivation has also been considered. Deactivation was found higher for Todorokite-based catalyst, which presented the largest amount of deposited carbon (26.2 wt% for Co-TOD vs 10.6 wt% for Co-BIR). On the other hand, the degree of metal sintering was found similar in both catalysts. Therefore, the deactivation of the catalysts has been attributed primarily to the deposition of coke. The results presented here show that it is possible to prepare new catalysts based on manganese oxides with Birnessite and Todorokite structure and promoted with Co with high catalytic performance in the steam reforming of ethanol. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. es_ES
dc.description.sponsorship The doctor Javier Francisco Da Costa Serra acknowledges the CSIC for granted the scholarship predoctoral-JAE-CSIC. Moreover, Electronic Microscopy Service of UPV for TEM images. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof International Journal of Hydrogen Energy es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Ethanol steam reforming es_ES
dc.subject Hydrogen production es_ES
dc.subject Todorokite es_ES
dc.subject Birnessite es_ES
dc.subject Cobalt catalyst es_ES
dc.title Catalysts based on Co-Birnessite and Co-Todorokite for the efficient production of hydrogen by ethanol steam reforming es_ES
dc.type Artículo es_ES
dc.type Comunicación en congreso es_ES
dc.identifier.doi 10.1016/j.ijhydene.2017.12.114 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química es_ES
dc.description.bibliographicCitation Da Costa Serra, JF.; Chica, A. (2018). Catalysts based on Co-Birnessite and Co-Todorokite for the efficient production of hydrogen by ethanol steam reforming. International Journal of Hydrogen Energy. 43(35):16859-16865. https://doi.org/10.1016/j.ijhydene.2017.12.114 es_ES
dc.description.accrualMethod S es_ES
dc.relation.conferencename VI Symposium on Hydrogen, Fuel Cells and Advanced Batteries (HYCELTEC 2017) es_ES
dc.relation.conferencedate Junio 19-23,2017 es_ES
dc.relation.conferenceplace Porto, Portugal es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.ijhydene.2017.12.114 es_ES
dc.description.upvformatpinicio 16859 es_ES
dc.description.upvformatpfin 16865 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 43 es_ES
dc.description.issue 35 es_ES
dc.relation.pasarela S\377402 es_ES
dc.contributor.funder Consejo Superior de Investigaciones Científicas


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