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Title: Preparation and characterization of bulk Mo⁠xC catalysts and their use in the reverse water-gas shift reaction
Author: Liu, Xianyun
Pajares, Arturo
Calinao Matienzo, D. J. Donn
Ramírez de la Piscina, Pilar
Homs Martí, Narcís
Keywords: Molibdè
Issue Date: 13-Nov-2019
Publisher: Elsevier B.V.
Abstract: In this work, different routes for the preparation of molybdenum carbides through sol-gel methods were studied; several parameters such as molybdenum precursor, carbon source and Mo/C ratios were explored. The materials were characterized using different techniques, such as adsorption/desorption of N2, XRD, Raman spectroscopy, SEM-EDX, TEM-EELS, H2-TPR and XPS. Depending on the preparation method used, the presence of different MoxC crystalline phases, Mo2C and/or MoC cubic and/or hexagonal, were determined. The catalytic behaviour in CO2 conversion for CO production through the reverse water gas shift reaction was tested using a reactant mixture CO2/H2 = 1/3 (molar ratio) at 0.1 MPa and a gas hourly space velocity of 3000 h-1. Values of CO2 conversion up to 26 %, with nearly 100 % selectivity to CO were achieved as a function of the reaction temperature and the catalyst used.
Note: Versió postprint del document publicat a:
It is part of: Catalysis Today, 2019
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ISSN: 0920-5861
Appears in Collections:Articles publicats en revistes (Química Inorgànica i Orgànica)

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