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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2682
Title: Active ceria-calcium oxide catalysts for dimethyl carbonate synthesis by conversion of CO2
Authors: Kumar P.
Srivastava, Vimal Chandra
Gläser R.
With P.
Mishra I.M.
Published in: Powder Technology
Abstract: Carbon dioxide has generated great interest in recent years because of its potential usage as an alternative to traditional sources of carbon such as natural gas, petroleum and coal. In this paper, CO2 in combination with methanol was used for dimethyl carbonate (DMC) synthesis in presence of cerium-calcium mixed oxide catalysts. Catalysts with different Ce/Ca molar ratios were synthesized using surfactant templating method and characterized by powder X-ray diffraction (XRD), Raman spectroscopy, N2–sorption, transmission electron microscopy (TEM), scanning electron microscopy (SEM) and temperature-programmed desorption (TPD) of CO2 and NH3. The direct conversion of CO2 was found to be highly dependent upon the acidity and basicity of catalysts. Brunauer-Emmett-Teller (BET) surface area of Ce3[sbnd]Ca1, Ce1[sbnd]Ca1 and Ce1[sbnd]Ca3 was found to be 102, 82, 109 m2/g, respectively, and the average pore diameter was 9, 12 and 5 nm, respectively. The Ce1[sbnd]Ca1 catalyst performed the best due to its combined acidic-basic properties. In addition, the catalyst was reused up to five cycles without significant loss of performance. © 2016 Elsevier B.V.
Citation: Powder Technology (2017), 309(): 13-21
URI: https://doi.org/10.1016/j.powtec.2016.12.016
http://repository.iitr.ac.in/handle/123456789/2682
Issue Date: 2017
Publisher: Elsevier B.V.
Keywords: Carbon dioxide utilization
Cerium–calcium mixed oxides
Dimethyl carbonate
Methanol
ISSN: 325910
Author Scopus IDs: 57164203600
35565811700
7202586559
36159965000
23668474600
Author Affiliations: Kumar, P., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India, Institute of Chemical Technology, Universität Leipzig, Linnéstraße 3, Leipzig, 04103, Germany
Srivastava, V.C., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Gläser, R., Institute of Chemical Technology, Universität Leipzig, Linnéstraße 3, Leipzig, 04103, Germany
With, P., Institute of Chemical Technology, Universität Leipzig, Linnéstraße 3, Leipzig, 04103, Germany, Leibniz-Institutes für Oberflächenmodifizierung e. V. (IOM), Permoserstr. 15, Leipzig, D-04318, Germany
Mishra, I.M., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India, Department of Chemical Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand 826004, India
Funding Details: One of the authors, namely Praveen Kumar, is thankful to Deutscher Akademischer Austausch Dienst (DAAD), Germany, for providing financial support to carry out this work under a Sandwich Model Scholarship.
Corresponding Author: Kumar, P.; Department of Chemical Engineering, Indian Institute of Technology RoorkeeIndia; email: praveen.zon@gmail.com
Appears in Collections:Journal Publications [CH]

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