Direct synthesis of hydrothermally stable mesoporous Ti-MSU-G and its catalytic properties in liquid-phase epoxidation

Peng Wu; Hiroyuki Sugiyama; Takashi Tatsumi

doi:10.1016/S0167-2991(03)80458-5

Direct synthesis of hydrothermally stable mesoporous Ti-MSU-G and its catalytic properties in liquid-phase epoxidation

Peng Wu, Hiroyuki Sugiyama, Takashi Tatsumi

Yokohama National University

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

Ti-MSU-G has been directly synthesized to investigate its hydrothermal stability and catalytic properties by comparing to pure silica MSU-G and Ti-MCM-41. Ti-MSU-G with ordered mesostructure and containing mainly tetrahedral Ti species in the silica framework is successfully synthesized in the Si/Ti ratio range of 30-70. Showing superior hydrothermal stability to MCM-41, Ti-MSU-G withstands the treatment in boiling water up to 75 h. No Ti leaching occurs when Ti-MSU-G catalyst is used repeatedly in the epoxidation of cyclohexene with either hydrogen peroxide or tert-huty\ hydroperoxide (TBHP). Nevertheless, the states of tetrahedral Ti species of Ti-MSU-G prove to be more stable in TBHP than in aqueous H₂O₂.

Original language	English
Pages (from-to)	613-616
Number of pages	4
Journal	Studies in Surface Science and Catalysis
Volume	146
DOIs	https://doi.org/10.1016/S0167-2991(03)80458-5
State	Published - 2003
Externally published	Yes

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title = "Direct synthesis of hydrothermally stable mesoporous Ti-MSU-G and its catalytic properties in liquid-phase epoxidation",

abstract = "Ti-MSU-G has been directly synthesized to investigate its hydrothermal stability and catalytic properties by comparing to pure silica MSU-G and Ti-MCM-41. Ti-MSU-G with ordered mesostructure and containing mainly tetrahedral Ti species in the silica framework is successfully synthesized in the Si/Ti ratio range of 30-70. Showing superior hydrothermal stability to MCM-41, Ti-MSU-G withstands the treatment in boiling water up to 75 h. No Ti leaching occurs when Ti-MSU-G catalyst is used repeatedly in the epoxidation of cyclohexene with either hydrogen peroxide or tert-huty\textbackslash{} hydroperoxide (TBHP). Nevertheless, the states of tetrahedral Ti species of Ti-MSU-G prove to be more stable in TBHP than in aqueous H2O2.",

author = "Peng Wu and Hiroyuki Sugiyama and Takashi Tatsumi",

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doi = "10.1016/S0167-2991(03)80458-5",

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T1 - Direct synthesis of hydrothermally stable mesoporous Ti-MSU-G and its catalytic properties in liquid-phase epoxidation

AU - Wu, Peng

AU - Sugiyama, Hiroyuki

AU - Tatsumi, Takashi

PY - 2003

Y1 - 2003

N2 - Ti-MSU-G has been directly synthesized to investigate its hydrothermal stability and catalytic properties by comparing to pure silica MSU-G and Ti-MCM-41. Ti-MSU-G with ordered mesostructure and containing mainly tetrahedral Ti species in the silica framework is successfully synthesized in the Si/Ti ratio range of 30-70. Showing superior hydrothermal stability to MCM-41, Ti-MSU-G withstands the treatment in boiling water up to 75 h. No Ti leaching occurs when Ti-MSU-G catalyst is used repeatedly in the epoxidation of cyclohexene with either hydrogen peroxide or tert-huty\ hydroperoxide (TBHP). Nevertheless, the states of tetrahedral Ti species of Ti-MSU-G prove to be more stable in TBHP than in aqueous H2O2.

AB - Ti-MSU-G has been directly synthesized to investigate its hydrothermal stability and catalytic properties by comparing to pure silica MSU-G and Ti-MCM-41. Ti-MSU-G with ordered mesostructure and containing mainly tetrahedral Ti species in the silica framework is successfully synthesized in the Si/Ti ratio range of 30-70. Showing superior hydrothermal stability to MCM-41, Ti-MSU-G withstands the treatment in boiling water up to 75 h. No Ti leaching occurs when Ti-MSU-G catalyst is used repeatedly in the epoxidation of cyclohexene with either hydrogen peroxide or tert-huty\ hydroperoxide (TBHP). Nevertheless, the states of tetrahedral Ti species of Ti-MSU-G prove to be more stable in TBHP than in aqueous H2O2.

UR - https://www.scopus.com/pages/publications/11844300635

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DO - 10.1016/S0167-2991(03)80458-5

M3 - 文章

AN - SCOPUS:11844300635

SN - 0167-2991

VL - 146

SP - 613

EP - 616

JO - Studies in Surface Science and Catalysis

JF - Studies in Surface Science and Catalysis

ER -

Direct synthesis of hydrothermally stable mesoporous Ti-MSU-G and its catalytic properties in liquid-phase epoxidation

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