Characterization of the dependence on temperature of the formation of carbon film on the internal surfaces of SBA-15 silica

Shenmin Zhu, Haoshen Zhou, Mitsuhiro Hibino, Itaru Honma, Masaki Ichihara

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

The dependence of pore size of carbon-coated ordered channels of mesoporous SBA-15 on temperature is reported for the first time from characterization of as-synthesized SBA-15 after graphitization under nitrogen at relatively high temperatures. The pore sizes of the obtained products changed, respectively, from 6.8 to 7.9 and 7.3 nm, corresponding to graphitization temperature of 800-600 and 500°C. The formation of carbon from the template acts as a framework support that reduces the shrinkage of the pores when as-synthesized SBA-15 is heat treated at high temperature under nitrogen, resulting in materials with larger pores than in calcined SBA-15, Thus, adjusting the heat-treating temperature can control the pore size of the resultant carbon-coated samples. This is likely to play an important role in its potential use as adsorbents or in electrochemistry.

Original languageEnglish
Pages (from-to)202-206
Number of pages5
JournalMaterials Chemistry and Physics
Volume88
Issue number1
DOIs
Publication statusPublished - 2004 Nov 15
Externally publishedYes

Keywords

  • Coatings
  • Nanostructure
  • Surfaces

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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