Nano Research

, Volume 3, Issue 5, pp 363–368 | Cite as

Surface active sites on Co3O4 nanobelt and nanocube model catalysts for CO oxidation

  • Linhua Hu
  • Keqiang Sun
  • Qing Peng
  • Boqing Xu
  • Yadong Li
Open Access
Research Article

Abstract

CO oxidation has been performed on Co3O4 nanobelts and nanocubes as model catalysts. The Co3O4 nanobelts which have a predominance of exposed {011} planes are more active than Co3O4 nanocubes with exposed {001} planes. Temperature programmed reduction of CO shows that Co3O4 nanobelts have stronger reducing properties than Co3O4 nanocubes. The essence of shape and crystal plane effect is revealed by the fact that turnover frequency of Co3+ sites of {011} planes on Co3O4 nanobelts is far higher than that of {001} planes on Co3O4 nanocubes.

Keywords

CO oxidation Co3O4 surface active sites turnover frequency model catalyst 

Supplementary material

12274_2010_1040_MOESM1_ESM.pdf (357 kb)
Supplementary material, approximately 356 KB.

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Copyright information

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Linhua Hu
    • 1
  • Keqiang Sun
    • 1
  • Qing Peng
    • 1
  • Boqing Xu
    • 1
  • Yadong Li
    • 1
  1. 1.Department of ChemistryTsinghua UniversityBeijingChina

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