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Portrait of Reine Wallenberg. Photo: Kennet Ruona

Reine Wallenberg

Professor, Coordinator Materials Science

Portrait of Reine Wallenberg. Photo: Kennet Ruona

Mesoporous thin films of high-surface-area crystalline cerium dioxide

Author

  • Mats Lundberg
  • Björn Skårman
  • F Cesar
  • Reine Wallenberg

Summary, in English

Mesoporous thin films of cerium dioxide were prepared by using a copolymer surfactant (Pluronics 123) at ambient conditions in alcohol as a solvent. The material was produced via a direct calcination step, without the necessity of a gelling stage. The synthesised CeO2 matrix was crystalline with a high surface area. The solution height over the synthesis vessel before the calcination step was found to play an important role in the direct calcination synthesis of mesoporous ceria. The material was characterised by scanning electron microscopy, transmission electron microscopy, powder X-ray diffraction, and determination of the specific surface area after the BET method. Small angle X-ray scattering was used to study differences in how the surfactant with ethanol as a solvent was ordered before and after addition of cerium chloride, prior to the calcination step.

Department/s

  • Centre for Analysis and Synthesis

Publishing year

2002

Language

English

Pages

97-103

Publication/Series

Microporous and Mesoporous Materials

Volume

54

Issue

1-2

Document type

Journal article

Publisher

Elsevier

Topic

  • Chemical Sciences

Keywords

  • template
  • pluronics
  • mesoporous
  • cerium dioxide
  • transmission electron microscopy

Status

Published

ISBN/ISSN/Other

  • ISSN: 1387-1811