Coupling of CH3OH and CO2 with 2-cyanopyridine for enhanced yields of dimethyl carbonate over ZnO-CeO2 catalyst

被引：9

作者：

Challa, Prathap ^{[1
,2
]}

Rao, Venkata M. ^{[2
]}

Nagaiah, P. ^{[2
]}

Nagu, A. ^{[1
,2
]}

Raju, David B. ^{[1
,2
]}

Rao, Rama K. S. ^{[1
,2
]}

机构：

[1] AcSIR, Acad Sci & Innovat Res, CSIR, New Delhi, India

[2] Indian Inst Chem Technol, CSIR, Catalysis & Fine Chem Dept, Hyderabad 500007, Telangana, India

来源：

JOURNAL OF CHEMICAL SCIENCES | 2019年 / 131卷 / 08期

关键词：

Dimethyl carbonate; methanol; carbon dioxide; 2-cyano pyridine; acid-base property; DIFFUSE-REFLECTANCE; CERIUM OXIDES; DIOXIDE; METHANOL; SILICA;

D O I：

10.1007/s12039-019-1651-4

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The present work is aimed to produce dimethyl carbonate by coupling of CH3OH and CO2 with 2-cyanopyridine over ZnO-CeO2 catalysts prepared by co-precipitation method. These catalysts were characterized by XRD, TEM, UV-Vis DRS, BET surface area, CO2 and NH3-TPD techniques and applied for the titled reaction. Among the investigated catalysts 10ZnO-90CeO(2) catalyst with CeO2 crystallite size 8.0 nm exhibited 96% conversion ofmethanol with 99% selectivity to dimethyl carbonate. The superior catalytic activity is a unified effect of crystalline size of CeO2 and presence of an optimum number of acidic and basic sites. This protocol offers enhanced conversion ofmethanol with the simultaneous conversion of 2-cyanopyridine into 2-picolinamide by removing water molecules formed in the reaction.

引用

页数：11

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