Formation and Structure of a Tin-Iron Oxide Solid-State System with Potential Applications in Carbon Monoxide Sensing through the Use of Cyanogel Chemistry

Stefanie L. Sharp, Gireesh Kumar, Edward P. Vicenzi, Andrew Bruce Bocarsly, Marija Heibel

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

The reaction of aqueous solutions of SnCl4·5H2O and K4Fe(CN)6 in a 2/1 Sn/Fe atomic ratio results in a hydrogelled polymeric material, characterized by bridging cyanides between the central metals of the adducts. Materials of this type have previously been noted upon reaction of PdCl42- with cyanometalates in aqueous solution and have been referred to as cyanogels. Dehydration of Sn/Fe cyanogels results in xerogels that maintain the initial polymeric structure of the hydrogel. Thermal processing of such gels under an air atmosphere at 900 °C produces a solid homogeneous mixture of macrocrystalline SnO2 and Fe2O3.

Original languageEnglish (US)
Pages (from-to)880-885
Number of pages6
JournalChemistry of Materials
Volume10
Issue number3
DOIs
StatePublished - Jan 1 1998

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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