Synthesis of TS-1 with preferably distributed Ti in depth direction of crystals

Kosuke Takaishi, Tetsuo Yamamoto, Masahiko Matsukata

Research output: Contribution to journalArticlepeer-review

Abstract

MFI-type titanosilicate, TS-1, was synthesized by using silicalite-1 as the silica source. When the synthesis gel was highly alkaline, dissolution of silicalite-1 drastically occurred in the initial stage of synthesis and Ti species were then uniformly incorporated in the whole body of TS-1 crystals produced. On the other hand, we found that when the gel had a lower alkalinity, dissolution in the initial stage was suppressed and recrystallization occurred on the surface of parent silicalite- 1, resulting in the Ti species being dominantly distributed in the vicinity of the external surface of the remaining core. 1-Hexene oxidation was performed over TS-1. TS-1 in which Ti species were distributed near the external surface showed better catalytic performance in terms of H2 O2 efficiency.

Original languageEnglish
Pages (from-to)532-534
Number of pages3
JournalChemistry Letters
Volume45
Issue number5
DOIs
Publication statusPublished - 2016

Keywords

  • 1-Hexene oxidation
  • Silicalite-1
  • Titanosilicate TS-1

ASJC Scopus subject areas

  • Chemistry(all)

Fingerprint Dive into the research topics of 'Synthesis of TS-1 with preferably distributed Ti in depth direction of crystals'. Together they form a unique fingerprint.

Cite this