Titanosilicate zeolite precursors for highly efficient oxidation reactions.

Chemical Science
Risheng BaiJihong Yu

Abstract

Titanosilicate zeolites are catalysts of interest in the field of fine chemicals. However, the generation and accessibility of active sites in titanosilicate materials for catalyzing reactions with large molecules is still a challenge. Herein, we prepared titanosilicate zeolite precursors with open zeolitic structures, tunable pore sizes, and controllable Si/Ti ratios through a hydrothermal crystallization strategy by using quaternary ammonium templates. A series of quaternary ammonium ions are discovered as effective organic templates. The prepared amorphous titanosilicate zeolites with some zeolite framework structural order have extra-large micropores and abundant octahedrally coordinated isolated Ti species, which lead to a superior catalytic performance in the oxidative desulfurization of dibenzothiophene (DBT) and epoxidation of cyclohexene. It is anticipated that the amorphous prezeolitic titanosilicates will benefit the catalytic conversion of bulky molecules in a wide range of reaction processes.

References

Feb 2, 2006·Journal of the American Chemical Society·Wallace O Parker, Roberto Millini
Jan 11, 2007·Journal of the American Chemical Society·Johan C GroenJavier Pérez-Ramírez
Feb 8, 2008·Nature·Berend Smit, Theo L M Maesen
Jan 7, 2015·Nature Materials·Hussein AwalaSvetlana Mintova
Jan 14, 2016·Chemical Society Reviews·Daniel SchneiderRustem Valiullin
Mar 12, 2016·Science·Guodong FengJihong Yu
Mar 11, 2017·Science·Eva María GallegoAvelino Corma
Aug 2, 2017·Nature Materials·Julien GrandSvetlana Mintova
Apr 9, 2019·Journal of the American Chemical Society·Nicolás A Grosso-GiordanoAlexander Katz
May 24, 2019·Journal of the American Chemical Society·Florent DubraySvetlana Mintova
May 21, 2020·Advanced Materials·Dali ZhuZhongmin Liu

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Citations

Apr 29, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Na LiYang Fan

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Methods Mentioned

BETA
X-ray
electron diffraction
transmission
NMR
acid treatment
silylation

Software Mentioned

XANES

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