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Synthesis of flower-like La or Pr-doped mesoporous ceria microspheres and their catalytic activities for methane combustion

Paper ID Volume ID Publish Year Pages File Format Full-Text
50865 46819 2010 5 PDF Available
Title
Synthesis of flower-like La or Pr-doped mesoporous ceria microspheres and their catalytic activities for methane combustion
Abstract

La or Pr-doped flower-like mesoporous ceria microspheres were prepared by a unique calcination of La or Pr-doped Ce(OH)CO3 microspheres hydrothermally synthesized with the aid of glucose and acrylic acid. Prepared flower-like ceria-based materials have a novel hierarchical architecture with mesoporous structure and high surface area, which can obviously facilitate the catalytic combustion of methane, compared with general La or Pr-doped ceria. The presence of La or Pr can promote the production of oxygen vacancies and improve oxygen mobility, which result in enhancing the oxygen-storage capacity of the flower-like ceria and its catalytic performance for the methane combustion.

Keywords
Mesoporous ceria microsphere; Hydrothermal synthesis; La or Pr doping; Methane combustion
First Page Preview
Synthesis of flower-like La or Pr-doped mesoporous ceria microspheres and their catalytic activities for methane combustion
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 11, Issue 11, 10 June 2010, Pages 946–950
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis