Nano-dimensional CeO2 nanorods for high Ni loading catalysts: H2 production by autothermal steam reforming of methanol reaction

R. Pérez-Hernández; G. Mondragón-Galicia; A. Allende Maravilla; J. Palacios

doi:10.1039/C3CP52032C

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Nano-dimensional CeO₂nanorods for high Ni loading catalysts: H₂ production by autothermal steam reforming of methanol reaction

R. Pérez-Hernández,*^a G. Mondragón-Galicia,^a A. Allende Maravilla^a and J. Palacios^a

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* Corresponding authors

^a Instituto Nacional de Investigaciones Nucleares, Carr. México-Toluca. S/N. La Marquesa, Ocoyoacac, Edo. de México, Mexico
E-mail: raul.perez@inin.gob.mx
Tel: +52(55) 53297240 ext. 2830

Abstract

CeO₂ nanorods were synthesized by a hydrothermal method and used as the support for preparing a series of Ni/CeO₂ nanorod catalysts. The surface area of the catalysts decreased when the Ni percent over the CeO₂ nanorods was increased. SEM results showed that the CeO₂ is formed by nanorods approximately 1 μm in length. TEM and HREM revealed that the width of the nanorods is about 8 nm and it grew along the [1 1 [1 with combining macron] ] axis. The catalytic activity of the catalysts was improved as the Ni was loaded onto CeO₂ nanorods. The exposed planes of the CeO₂ nanorod structure along the zone axis [0 1 1] for Ni impregnation were ( 1), (1 1 ), (1 1), ( 1 ), (2 0 0) and ( [2 with combining macron] 0 0) and they were more reactive for methanol conversion than ( 0), ( 0 ), (0 2 ), (0 2), (2 0 2) and (2 2 0) planes from the [1 1 [1 with combining macron] ] axis (growth direction of the nanorod). This finding is mainly ascribed to the synergistic effect of the CeO₂ nanorods and the Ni.

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Article information

DOI: https://doi.org/10.1039/C3CP52032C
Article type: Paper
Submitted: 14 May 2013
Accepted: 22 May 2013
First published: 23 May 2013

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Phys. Chem. Chem. Phys., 2013,15, 12702-12708

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Nano-dimensional CeO₂ nanorods for high Ni loading catalysts: H₂ production by autothermal steam reforming of methanol reaction

R. Pérez-Hernández, G. Mondragón-Galicia, A. Allende Maravilla and J. Palacios, Phys. Chem. Chem. Phys., 2013, 15, 12702 DOI: 10.1039/C3CP52032C

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