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

共 38 条

[21] Promoting effect of ceria on the physicochemical. and catalytic properties of CeO2-ZnO composite oxide catalysts [J].

Mishra, BG ;

Rao, GR .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2006, 243 (02) :204-213

[22] Aspects of carbon dioxide utilization [J].

Omae, Iwao .

CATALYSIS TODAY, 2006, 115 (1-4) :33-52

[23]

Qinghai C, 2005, CATAL LETT, V103, P225, DOI [10.1007/s10562-005-7158-2, DOI 10.1007/S10562-005-7158-2]

[24] Ce3+-ion-induced visible-light photocatalytic degradation and electrochemical activity of ZnO/CeO2 nanocomposite [J].

Rajendran, Saravanan ;

Khan, Mohammad Mansoob ;

Gracia, F. ;

Qin, Jiaqian ;

Gupta, Vinod Kumar ;

Arumainathan, Stephen .

SCIENTIFIC REPORTS, 2016, 6

[25] Copper Promoted Cobalt and Nickel Catalysts Supported on Ceria-Alumina Mixed Oxide: Structural Characterization and CO Oxidation Activity [J].

Reddy, Benjaram M. ;

Rao, Komateedi N. ;

Bharali, Pankaj .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2009, 48 (18) :8478-8486

[26] Greener synthesis of dimethyl carbonate using a novel ceria-zirconia oxide/graphene nanocomposite catalyst [J].

Saada, Rim ;

Kellici, Suela ;

Heil, Tobias ;

Morgan, David ;

Saha, Basudeb .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2015, 168 :353-362

[27] Photocatalytic Degradation of Organic Dyes Using ZnO/CeO2 Nanocomposite Material Under Visible Light [J].

Saravanan, R. ;

Karthikeyan, N. ;

Govindan, S. ;

Narayanan, V. ;

Stephen, A. .

RECENT TRENDS IN ADVANCED MATERIALS, 2012, 584 :381-+

[28]

Shingo W, 2009, J PHYS CHEM C, V113, P14249, DOI [10.1021/jp8110309, DOI 10.1021/JP8110309]

[29] Boosted CO2 reaction with methanol to yield dimethyl carbonate over Mg-Al hydrotalcite-silica lyogels [J].

Stoian, D. C. ;

Taboada, E. ;

Llorca, J. ;

Molins, E. ;

Medina, F. ;

Segarra, A. M. .

CHEMICAL COMMUNICATIONS, 2013, 49 (48) :5489-5491

[30]

Tian-Yi M, 2010, EUR J INORG CHEM, V2010, P716, DOI [10.1002/ejic.200900991, DOI 10.1002/EJIC.200900991]

← 1 2 3 4 →