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  • 1 Institute of Physical Chemistry of the Romanian Academy, Spl. Independentei 202, 060021, Bucharest, Romania
  • | 2 Department of Chemical and Biological Sciences, Faculty of Science, Japan Women's University, 2-8-1 Mejirodai, Bunkyo-ku, Tokyo 112-8681, Japan
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Abstract

This article focuses on the catalytic behavior of MO–Sm2O3 (M = Zn, Mg, Ca, Sr) mixed oxides. The obtained results could be interpreted in terms of solid acid–base catalysis. The mixed oxides were prepared starting from the tartarate complexes of the constituent metals. The concentration as well as the evolution of surface carbonate species with the nature of MO and reaction temperature were analyzed by XRD and TPD methods. The amount of surface basic sites responsible for the formation of C2+ was determined by measuring the amount of evolved CO2 in the 300–800 °C temperature range. The catalytic behavior of the investigated mixed oxides was expressed in terms of methane yield to C2+ and the concentration of CO2 in reaction mixture. The conclusion is that C2+ is formed on the basic sites whereas the acidic sites are responsible for nonselective oxidation of methane to CO2.

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  • Impact Factor (2019): 1.520
  • Scimago Journal Rank (2019): 0.345
  • SJR Hirsch-Index (2019): 39
  • SJR Quartile Score (2019): Q3 Physical and Theoretical Chemistry
  • SJR Quartile Score (2019): Q4 Catalysis
  • Impact Factor (2018): 1.142
  • Scimago Journal Rank (2018): 0.374
  • SJR Hirsch-Index (2018): 37
  • SJR Quartile Score (2018): Q3 Physical and Theoretical Chemistry
  • SJR Quartile Score (2018): Q3 Catalysis

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Reaction Kinetics, Mechanisms and Catalysis
Language English
Size B5
Year of
Foundation
1974
Volumes
per Year
3
Issues
per Year
6
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1878-5190 (Print)
ISSN 1878-5204 (Online)