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Preparation of bimodal mesoporous CoCe composite oxide for ethanol complete oxidation in air

  • Hongmei Xie , Sijia Song , Jia Zeng , Guizhi Zhang and Shuang Chen EMAIL logo
Published/Copyright: July 7, 2023
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International Journal of Chemical Reactor Engineering
From the journal International Journal of Chemical Reactor Engineering Volume 21 Issue 10

Abstract

The CeO2 and CeCoO composite oxide catalysts with bimodal mesopore structures were prepared by hard-template method and used for ethanol complete oxidation in air. The physicochemicalphysicochemical properties of the prepared catalysts were characterized by XRD, BET, TEM, XPS, H2-TPR, and O2-TPD. The Co species can be dissolved into CeO2 lattice to form Ce–O–Co solid solution, which promotes reactive oxygen species to be formed on the prepared CeCoO oxide catalysts surface. The bimodal mesopore structures can be obtained by the used hard-template method, and the pore structures of the prepared CeCoO oxide catalysts can be affected by the introduction of Co species. The synergistic effects from bimodal mesopore structures and reactive oxygen species can effectively boost ethanol complete oxidation to final product CO2. The CeCo2 catalyst with Ce/Co mole ratio of 2.0 exhibites superior ethanol complete oxidation activity and service stability, the ethanol oxidation conversion and final oxidation product CO2 selectivity reached 99.8 % and 99.2 % at 200 °C, respectively. This work indicates that the bimodal mesoporous CeCoO solid solution composite oxide catalyst is a promising candidate for OVOCs oxidation elimination from air.

Keywords: bimodal mesopore structure; catalytic combustion; hard-template method; OVOCs; reactive oxygen species; solid solution composite oxide
Corresponding author: Shuang Chen, Chongqing Key Laboratory of Catalysis and Environmental New Materials, Department of Chemical Engineering, Chongqing Technology and Business University, Chongqing 400067, China; and Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, China, E-mail:

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: This research is funded by Science and Technology Research Project of Chongqing Education Commission (KJQN202000806); Chongqing Natural Science Foundation Project (CSTB2022NSCQ-MSX0810).

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2023-02-20
Accepted: 2023-06-26
Published Online: 2023-07-07

© 2023 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Articles
  3. Methylene blue removal from aqueous solution using modified Met-SWCNT-Ag nanoparticles: optimization using RSM-CCD
  4. Leaching behavior of germanium presented in different phases from zinc oxide dust under atmospheric acid leaching conditions
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  9. Hydrocracking of hydrotreated light cycle oil for optimizing BTEX production: a simple kinetic model
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https://doi.org/10.1515/ijcre-2023-0037
Keywords for this article
bimodal mesopore structure; catalytic combustion; hard-template method; OVOCs; reactive oxygen species; solid solution composite oxide

Articles in the same Issue

  1. Frontmatter
  2. Articles
  3. Methylene blue removal from aqueous solution using modified Met-SWCNT-Ag nanoparticles: optimization using RSM-CCD
  4. Leaching behavior of germanium presented in different phases from zinc oxide dust under atmospheric acid leaching conditions
  5. TiO2 P25 and Kronos vlp 7000 materials activated by simulated solar light for atrazine degradation
  6. Numerical investigations on hydrothermal flame characteristics of water-cooled hydrothermal burner
  7. Moving bed biofilm reactor combined with an activated carbon filter for biological nitrate removal
  8. Preparation of bimodal mesoporous CoCe composite oxide for ethanol complete oxidation in air
  9. Hydrocracking of hydrotreated light cycle oil for optimizing BTEX production: a simple kinetic model
  10. Hydrodynamic comparison of different geometries of square cross-section airlift bioreactor using computational fluid dynamics
  11. Influence of different influence parameters on mixing characteristics of silicon particles in cassette
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