Abstract

Highly mesoporous antimony-doped tin oxide (ATO) materials with three-dimensionally connected textural pores were prepared by a convenient one-pot process by creating, drying and calcining hydrous ATO and resorcinol-formaldehyde composite gels. The synthesis is designed to form a hydrous ATO gel structure first at room temperature and upon subsequent heating at 70 °C the inorganic gel network catalyzes the full polymerization of resorcinol and formaldehyde. The resulting polymer network interpenetrates the inorganic gel network and serves as a hard template during drying and calcination. The final products show a good crystallinity and have high surface areas up to 100 m2 g-1 and high porosities up to 69%. The average pore sizes range from 7 to 33 nm, controlled mainly by varying the amount of the polymer component in the composite gels. The materials exhibit remarkably low resistivities (>0.14 Ω cm) for a mesoporous ATO material.

Original languageEnglish (US)
Pages (from-to)13232-13240
Number of pages9
JournalJournal of Materials Chemistry
Volume21
Issue number35
DOIs
StatePublished - Sep 21 2011

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ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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