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Particle size effect in the low temperature reforming of methane by carbon dioxide on silica-supported Ni nanoparticles

Research output: Contribution to journalArticlepeer-review

Author(s)

David Baudouin, Uwe Rodemerck, Frank Krumeich, Aimery de Mallmann, Kai C. Szeto, Herve Menard, Laurent Veyre, Jean-Pierre Candy, Paul B. Webb, Chloe Thieuleux, Christophe Coperet

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Abstract

The influence of nickel particle size in the range of 1.6-7.3 nm on catalyst performance in low temperature CO2 reforming of methane reaction has been investigated using well-defined catalysts based on a neutral silica support. XAS and XPS studies indicated a reduction degree greater than 90%. The intrinsic Ni/SiO2 performances were found to be independent of nickel particle size in dry reforming at 773 K using a CH4/CO2 ratio of 1.3 at 1 atm, both at an early stage and in steady state conditions. The H-2/CO ratio was also found to be structure in sensitive but is controlled by thermodynamics through the faster reverse water gas shift reaction. (c) 2012 Elsevier Inc. All rights reserved.

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Details

Original languageEnglish
Pages (from-to)27-34
Number of pages8
JournalJournal of Catalysis
Volume297
DOIs
Publication statusPublished - Jan 2013

    Research areas

  • Nickel nanoparticles, Silica-supported, Carbon dioxide reforming of methane, Particle size effect, SYNTHESIS GAS, CHEMICAL CONVERSION, CATALYSTS, NICKEL, OXIDE, CO2, CHEMISORPTION, REQUIREMENTS, ACTIVATION, ADSORPTION

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