Low temperature glycerol steam reforming on bimetallic PtSn/C catalysts: On the effect of the Sn content

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Title: Low temperature glycerol steam reforming on bimetallic PtSn/C catalysts: On the effect of the Sn content
Authors: Pastor Pérez, Laura | Sepúlveda-Escribano, Antonio
Research Group/s: Materiales Avanzados
Center, Department or Service: Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Bimetallic catalysts | PtSn/C | Glycerol steam reforming | Deactivation
Knowledge Area: Química Inorgánica
Issue Date: 15-Apr-2017
Publisher: Elsevier
Citation: Fuel. 2017, 194: 222-228. doi:10.1016/j.fuel.2017.01.023
Abstract: Steam reforming of glycerol to produce syngas or H2-enriched streams is a promising route that has caught the attention of many researchers around the world. This reaction is typically carried out over metal-based catalysts supported on stable materials. Herein we report a study on the effect of Sn on the catalytic properties of Pt/C in the aforementioned reaction. A series of Pt-Sn/C catalysts with different Pt:Sn ratios were prepared and characterized using ICP, H2-TPR, TEM and XPS techniques, and they were tested in the glycerol steam reforming reaction at 623 K and atmospheric pressure. The best performance was observed for the catalysts with low tin contents. It was found that Sn promoted oxidation reactions and inhibited methanation. Furthermore, the presence of Sn improved the stability of the catalysts when operating at harsher conditions of temperature and glycerol concentration. A promoter effect of Sn hindering platinum sintering and the formation of coke precursors is proposed as the origin of the observed behaviour.
Sponsor: This work has been supported by Ministerio de Economía y Competitividad (Spain, Project MAT2010-21147). L.P.P. acknowledges her grant BES-2011-0406508.
URI: http://hdl.handle.net/10045/61687
ISSN: 0016-2361 (Print) | 1873-7153 (Online)
DOI: 10.1016/j.fuel.2017.01.023
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2017 Published by Elsevier Ltd.
Peer Review: si
Publisher version: http://dx.doi.org/10.1016/j.fuel.2017.01.023
Appears in Collections:INV - LMA - Artículos de Revistas

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