Conversion of Aurivillius phases Bi2ANaNB3o12 (A = Sr or Ca) into the protonated forms of layered perovskite via acid treatment

Wataru Sugimoto, Masashi Shirata, Kazuyuki Kuroda, Yoshiyuki Sugahara

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21 Citations (Scopus)

Abstract

Protonated forms of layered perovskites were derived from Aurivillius phases, Bi2Ananb3O12 (A = Sr or Ca), by the substitution of bismuth oxide sheets with protons via acid treatment. The conversion into the protonated forms was achieved easily using 6 M HCI at room temperature. Preservation of the structure of the perovskite-like slabs and contraction in the c axis were confirmed by X-ray and electron diffraction analysis as well as by transmission electron microscopy. The compositions of the resulting products were determined to be H1.8[A0.8Bi0.2NaNb3 O10] (A = Sr or Ca) by inductively coupled plasma emission spectroscopy and thermogravimetry. The acid-treated product H1.8[Sr0.8Bi0.2-NaNb3 O10] was capable of accommodating n-alkylamines in the interlayer space, which is in good agreement with the proposed layered structure.

Original languageEnglish
Pages (from-to)2946-2952
Number of pages7
JournalChemistry of Materials
Volume14
Issue number7
DOIs
Publication statusPublished - 2002 Jul 27

ASJC Scopus subject areas

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

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