(Pd–CuCl2)/γ-Al2O3: a high-performance catalyst for carbonylation of methyl nitrite to dimethyl carbonateElectronic supplementary information (ESI) available: XRD patterns, BET surface area, XPS spectrum, in situDRIR spectra, and GC diagrams. See DOI: 10.1039/c5cy00251f
- Resource Type
- Article
- Authors
- Lv, Dong-Mei; Xu, Zhong-Ning; Peng, Si-Yan; Wang, Zhi-Qiao; Chen, Qing-Song; Chen, Yumin; Guo, Guo-Cong
- Source
- Catalysis Science & Technology; 2015, Vol. 5 Issue: 6 p3333-3339, 7p
- Subject
- Language
- ISSN
- 20444753; 20444761
(Pd–CuCl2)/γ-Al2O3catalyst with excellent activity and selectivity has been successfully developed for vapor-phase carbonylation of methyl nitrite to dimethyl carbonate (DMC). It has been demonstrated that Cl−is necessary for the superior selectivity (99.8%) to DMC, and that Cl−and Cu2+have a synergetic effect. The Lewis acid sites of the γ-Al2O3support may be suitable for vapor-phase carbonylation of methyl nitrite to DMC. Moreover, the catalytic mechanism of DMC formation on the (Pd–CuCl2)/γ-Al2O3catalyst has been reasonably proposed based on the results of XPS and in situdiffuse reflectance infrared spectroscopy. The intermediate Cl–Pd(ii)–COOCH3is the key factor for the synthesis of DMC.