Phase separation of organic/inorganic hybrids induced by calcination: A novel route for synthesizing mesoporous silica and carbon materials

Sen Liu, Zhe Zhang, Haiyan Zhang, Yonglai Zhang, Shu Wei, Limin Ren, Chunyu Wang, Yinyan He, Fei Li, Feng Shou Xiao

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Mesoporous silica and carbon materials have been successfully synthesized via a novel calcination induced phase separation of organic/inorganic hybrids prepared from solvothermal polymerization of polyvinyl alcohol (PVA) and tetraethyl orthosilicate (TEOS) in dimethyl sulfoxide (DMSO). Combined characterizations of XRD, nitrogen isotherms, and TEM techniques show that the samples have worm-like mesostructures with uniform pore size distributions and large BET surface areas 1H NMR spectra reveal that ethanol was generated after the solvothermal treatments, indicating the polymerization of PVA and TEOS. Open mesopores of the desired silicas or carbons could be fabricated by calcining the hybrids in air and nitrogen, respectively. This route might open a new methodology to synthesize mesoporous materials.

Original languageEnglish (US)
Pages (from-to)257-261
Number of pages5
JournalJournal of Colloid And Interface Science
Volume345
Issue number2
DOIs
StatePublished - May 1 2010

Keywords

  • Calcination
  • Mesoporous carbon
  • Mesoporous silica
  • Non-aqueous synthesis
  • Organic/inorganic hybrids
  • Phase separation

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