Issue 4, 2012
From the journal:

Catalysis Science & Technology

Catalytic activity and X-ray photoelectron spectroscopy performance of Bi2MoxW(1−x)O6 solid-solutions†

R. Rangel,*a   P. Bartolo-Pérez,b   E. Martínez,c   X. A. Trejo-Cruz,a   G. Díaze  and  D. H. Galvánd  

* Corresponding authors

a Universidad Michoacana de S.N.H., Morelia, ., Mich, Mexico
E-mail: rrangel@umich.mx
Fax: +52 443 3273584
Tel: +52 443 3273584

b Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados-IPN, Mérida, Yucatán, México
E-mail: pascual@mda.cinvestav.mx

c Centro de Investigación en Materiales Avanzados, S.C., Parque de Investigación e Innovación Tecnológica (PIIT), Nueva Carretera Aeropuerto Km. 10, Apodaca, Nuevo León, Mexico
E-mail: eduardo.martinez@cimav.edu.mx

d Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Apdo. Postal 2681, 22800 Ensenada, B. C., México
E-mail: donald@cnyn.unam.mx

e Instituto de Física, Universidad Nacional Autónoma de México, A.P. 20-364, México DF 01000, México
E-mail: diaz@fisica.unam.mx

Abstract

The present paper describes the results of the study of solid solutions of Bi2MoxW(1−x)O6, which were prepared by the route of solid-state reaction and tested for catalytic activity in the oxidation of CO into CO2. X-Ray photoelectron spectroscopy (XPS) was conducted to obtain information on the chemical composition, and with the use of Bi2MoO6 and Bi2WO6 synthesized standards, quantitative measures were obtained. Catalytic studies of the samples show that they possess high activity, as a change in the temperature of activation as a function of the sintering temperature with the Mo/W ratio was detected. Bi–Mo mixed oxides have synergistic effects on the oxidation of CO, making possible the full conversion at lower temperatures than compounds that contain only single phases. The work described here demonstrates that a solid solution can be more efficient in oxidation, compared with single oxides studied separately.

Graphical abstract: Catalytic activity and X-ray photoelectron spectroscopy performance of Bi2MoxW(1−x)O6 solid-solutions

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Article information

DOI
https://doi.org/10.1039/C2CY00506A
Article type
Paper
Submitted
05 Dec 2011
Accepted
19 Jan 2012
First published
20 Jan 2012

Catal. Sci. Technol., 2012,2, 847-852

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Catalytic activity and X-ray photoelectron spectroscopy performance of Bi2MoxW(1−x)O6 solid-solutions

R. Rangel, P. Bartolo-Pérez, E. Martínez, X. A. Trejo-Cruz, G. Díaz and D. H. Galván, Catal. Sci. Technol., 2012, 2, 847 DOI: 10.1039/C2CY00506A

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