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dc.contributor.author Lopez, Eduardo
dc.contributor.author Irigoyen, Aitor
dc.contributor.author Trifonov, Trifon
dc.contributor.author Rodríguez, Angel
dc.contributor.author Llorca, Jordi
dc.date.available 2018-08-30T15:12:36Z
dc.date.issued 2010-01
dc.identifier.citation Lopez, Eduardo; Irigoyen, Aitor; Trifonov, Trifon; Rodríguez, Angel; Llorca, Jordi; A million-channel reformer on a fingertip: Moving down the scale in hydrogen production; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 35; 8; 1-2010; 3472-3479
dc.identifier.issn 0360-3199
dc.identifier.uri http://hdl.handle.net/11336/57681
dc.description.abstract The present contribution reports the design, manufacture and experimental proof of concept of an ethanol micro-reformer for portable-fuel cell feeding. Through photo-assisted electrochemical etching, a silicon micromonolithic substrate with perfectly parallel cylindrical channels of 3.3 μm diameter was achieved (density of channels of ca. 4 × 104 channels mm-2). The channel walls were coated with a cobalt-based catalyst. The resultant functionalized micromonoliths were implemented in a stainless steel microreactor including feed evaporation facilities and electrical heating. The unit was successfully tested for ethanol steam reforming under non-diluted feed conditions at 773 K, achieving high hydrogen specific production rates, high ethanol conversions (>80%) and adequate selectivity profiles, with H2:CO2 molar ratios of ∼3 and low CO outlet concentrations. A performance comparison was performed with two other reforming substrates with the same catalyst formulation, namely, a conventional cordierite monolith and a conventional stainless steel microreactor. Results show for the Si-micromonolithic reactor a remarkable improvement of the specific hydrogen production rate (per unit reactor volume and feed flowrate), operating at considerably reduced residence times, due to the increase in contact area per unit volume. © 2010 Professor T. Nejat Veziroglu.
dc.format application/pdf
dc.language.iso eng
dc.publisher Pergamon-Elsevier Science Ltd
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject ETHANOL REFORMING
dc.subject HYDROGEN
dc.subject MACROPOROUS SILICON
dc.subject MICROREACTOR
dc.subject.classification Otras Ingeniería Química
dc.subject.classification Ingeniería Química
dc.subject.classification INGENIERÍAS Y TECNOLOGÍAS
dc.title A million-channel reformer on a fingertip: Moving down the scale in hydrogen production
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2018-08-21T13:42:55Z
dc.journal.volume 35
dc.journal.number 8
dc.journal.pagination 3472-3479
dc.journal.pais Países Bajos
dc.journal.ciudad Amsterdam
dc.description.fil Fil: Lopez, Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina. Universidad Politécnica de Catalunya; España
dc.description.fil Fil: Irigoyen, Aitor. Universidad Politécnica de Catalunya; España
dc.description.fil Fil: Trifonov, Trifon. Universidad Politécnica de Catalunya; España
dc.description.fil Fil: Rodríguez, Angel. Universidad Politécnica de Catalunya; España
dc.description.fil Fil: Llorca, Jordi. Universidad Politécnica de Catalunya; España
dc.journal.title International Journal of Hydrogen Energy
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1016/j.ijhydene.2010.01.146
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S036031991000248X
dc.conicet.fuente individual


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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)