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Vol. 27 No. 4 (2015): Vol 27 Issue 4

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Oxidative Carbonylation of Methanol to Dimethyl Carbonate Over Cu/AC Catalysts Prepared by Microwave Irradiation

https://doi.org/10.14233/ajchem.2015.17998
J. Ren
Key Laboratory of Coal Science and Technology (Taiyuan University of Technology), Ministry of Education and Shanxi Province, Taiyuan 030024, P.R. China
L.L. Yang
Key Laboratory of Coal Science and Technology (Taiyuan University of Technology), Ministry of Education and Shanxi Province, Taiyuan 030024, P.R. China
D.L. Wang
Key Laboratory of Coal Science and Technology (Taiyuan University of Technology), Ministry of Education and Shanxi Province, Taiyuan 030024, P.R. China
Z.F. Qin
Key Laboratory of Coal Science and Technology (Taiyuan University of Technology), Ministry of Education and Shanxi Province, Taiyuan 030024, P.R. China
Y.L. Pei
Key Laboratory of Coal Science and Technology (Taiyuan University of Technology), Ministry of Education and Shanxi Province, Taiyuan 030024, P.R. China
J.Y. Lin
Key Laboratory of Coal Science and Technology (Taiyuan University of Technology), Ministry of Education and Shanxi Province, Taiyuan 030024, P.R. China
Z. Li
Key Laboratory of Coal Science and Technology (Taiyuan University of Technology), Ministry of Education and Shanxi Province, Taiyuan 030024, P.R. China

Corresponding Author(s) : J. Ren

renjun@tyut.edu.cn

Asian Journal of Chemistry, Vol. 27 No. 4 (2015): Vol 27 Issue 4

Abstract

The Cu/AC catalysts were prepared by impregnation of activated carbon with copper nitrate followed by microwave heating in vacuum. They were subsequently tested with the oxidative carbonylation of methanol to dimethyl carbonate. X-ray diffraction, N2 adsorption, Temperature-programmed reduction, X-ray photoelectron spectroscopy and scanning electron micrographs were used to examine the bulk and surface properties of the carbon-supported copper catalysts. Microwave irradiation causes fast decomposion of copper nitrate and further auto-reduction of copper(II) species to copper(I) oxide and Cu metal induced by the intereaction with the carbon support. The catalytic performance of the Cu/AC catalysts is mainly dependent on the dispersion and grain size of Cu nanoparticles and reaches its optimum for the sample with an irradiation temperature of 350 °C.

Keywords

Dimethyl carbonate Microwave heating Cu/AC catalysts Auto-reduction Cu Nanoparticles
Ren, J., Yang, L., Wang, D., Qin, Z., Pei, Y., Lin, J., & Li, Z. (2015). Oxidative Carbonylation of Methanol to Dimethyl Carbonate Over Cu/AC Catalysts Prepared by Microwave Irradiation. Asian Journal of Chemistry, 27(4), 1381–1387. https://doi.org/10.14233/ajchem.2015.17998
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