Syntheses of chromium(III)-doped aluminophosphate-5 molecular sieves from various gels

Michihiro Miyake, Hirofumi Uehara, Hiroaki Suzuki, Zhidong Yao, Motohide Matsuda, Mitsuo Sato

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

The crystallization fields of Cr(III)-doped AlPO4-5 have been investigated by hydrothermally treating gels with various compositions at 170°C for 24h. From the results it was found that the AFI structure was more easily prepared from the starting gel with a small amount of Cr(III) ions than that without Cr(III) ions, and tri-n-propylamine was useful as a template for the synthesis of Cr(III)-doped AlPO4-5 with good crystallinity (i.e., light green hexagonal prisms along the c-axis). Furthermore, the synthesis condition to produce excellent, large, Cr(III)-doped AlPO4-5 crystals up to 0.3mm in length was successfully discovered.

Original languageEnglish
Pages (from-to)45-53
Number of pages9
JournalMicroporous and Mesoporous Materials
Volume32
Issue number1-2
DOIs
Publication statusPublished - Nov 15 1999
Externally publishedYes

Keywords

  • Cr(III)-doped AlPO-5
  • Crystallization field
  • Hydrothermal synthesis
  • Molecular sieve

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials

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