Nanocomposites based on the SBA-15 mesoporous silica highly loaded with various iron oxides

Pavel Tyapkin, Konstantin Gerasimov, Sergey Petrov, Irina Derevyagina, Svetlana Shatskaya, Alfred Chernyshev, Nikolai Uvarov

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

Nanocomposites highly loaded with various iron oxides were obtained by thermal treatment of SBA-15 mesoporous silica soaked in concentrated freshly prepared ferric oxalate aqueous solution. Ultradispersed iron oxide particles appeared to cover external surface of the matrix as well as to be embedded into the depth of silica. We showed that CO evolving during the thermal decomposition of ferric oxalate added at the second impregnation stage is able to reduce the iron(III) oxide preliminary formed by oxidative thermolysis of the salt having been initially loaded.

Original languageEnglish
Pages (from-to)387-390
Number of pages4
JournalMaterials Today: Proceedings
Volume25
DOIs
Publication statusPublished - 1 Oct 2019
Event3rd All-Russian Conference, with International Participation Hot Topics of Solid State Chemistry : From New Ideas to New Materials, HTSSC 2019 - Novosibirsk, Russian Federation
Duration: 1 Oct 20195 Oct 2019

Keywords

  • Ferric oxalate
  • Iron oxide
  • Mesoporous silica
  • Mossbauer spectroscopy
  • Nanocomposite
  • Synchronous thermal analysis
  • OXALATE

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