Issue 19, 2016

Au/BiPO4 nanorod catalysts: synthesis, characterization and their catalytic performance for CO oxidation

Abstract

In this paper, monoclinic phase BiPO4 nanorods were successfully prepared by a one-pot solvothermal route. Au/BiPO4 catalysts were obtained by a deposition–precipitation method. The samples were characterized by X-ray diffraction, transmission electron microscopy techniques, energy dispersive X-ray analysis, X-ray photoelectron spectroscopy, and UV-vis diffuse reflectance spectroscopy. The TEM results exhibited a good dispersion of gold nanoparticles over the support. The XPS spectra revealed that gold was in the metallic state and bismuth was in the +3 oxidation state. The catalysis results demonstrated that BiPO4 nanorods could be a good support for gold catalysts. Among the prepared catalysts, the 1.5% Au/BiPO4 pretreated at 300 °C showed the best performance in CO oxidation and could achieve 100% CO oxidation at 40 °C. It retained 100% conversion after continuous operation for 10 h at 40 °C, and showed no deactivation after 50 h at a selected high reaction temperature of 180 °C. The possible mechanism of Au/BiPO4 catalysts in the CO oxidation was also proposed.

Graphical abstract: Au/BiPO4 nanorod catalysts: synthesis, characterization and their catalytic performance for CO oxidation

Supplementary files

Article information

Article type
Paper
Submitted
06 Jan 2016
Accepted
25 Jan 2016
First published
28 Jan 2016

RSC Adv., 2016,6, 15304-15312

Au/BiPO4 nanorod catalysts: synthesis, characterization and their catalytic performance for CO oxidation

P. Zhang, H. Yu, J. Li, H. Zhao, B. Zhu, W. Huang and S. Zhang, RSC Adv., 2016, 6, 15304 DOI: 10.1039/C6RA00399K

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