Rh2O3/hexagonal CePO4 nanocatalysts for N2O decomposition

Huan Liu, Zhen Ma

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PDF(416 KB)
Front. Chem. Sci. Eng. ›› 2017, Vol. 11 ›› Issue (4) : 586-593. DOI: 10.1007/s11705-017-1659-6
RESEARCH ARTICLE

Rh2O3/hexagonal CePO4 nanocatalysts for N2O decomposition

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Abstract

Hexagonal CePO4 nanorods were prepared by a precipitation method and hexagonal CePO4 nanowires were prepared by hydrothermal synthesis at 150 °C. Rh(NO3)3 was then used as a precursor for the impregnation of Rh2O3 onto these CePO4 materials. The Rh2O3 supported on the CePO4 nanowires was much more active for the catalytic decomposition of N2O than the Rh2O3 supported on CePO4 nanorods. The stability of both catalysts as a function of time on stream was studied and the influence of the co-feed (CO2, O2, H2O or O2/H2O) on the N2O decomposition was also investigated. The samples were characterized by N2 adsorption-desorption, inductively coupled plasma optical emission spectroscopy, X-ray diffraction, transmission electron microscopy, X-ray photoelectron microscopy, hydrogen temperature-programmed reduction, oxygen temperature-programmed desorption, and CO2 temperature-programmed desorption in order to correlate the physicochemical and catalytic properties.

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Keywords

Rh2O3 / CePO4 / N2O decomposition

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Huan Liu, Zhen Ma. Rh2O3/hexagonal CePO4 nanocatalysts for N2O decomposition. Front. Chem. Sci. Eng., 2017, 11(4): 586‒593 https://doi.org/10.1007/s11705-017-1659-6

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Acknowledgements

This project was supported by the National Natural Science Foundation of China (Grant No. 21477022).

Electronic Supplementary Material

Supplementary material is available in the online version of this article at http://dx.doi.org/10.1007/s11705-017-1659-6 and is accessible for authorized users.

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2017 Higher Education Press and Springer-Verlag GmbH Germany
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