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Title: Titanosilicate zeolite precursors for highly efficient oxidation reactions

Journal Article · · Chemical Science
DOI: https://doi.org/10.1039/d0sc04603e · OSTI ID:1686194
ORCiD logo [1];  [2];  [3];  [3];  [3]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [2]; ORCiD logo [3]
  1. Jilin Univ., Changchun (China); Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Valencia (Spain). Instituto de Tecnología Química
  2. Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Valencia (Spain). Instituto de Tecnología Química
  3. Jilin Univ., Changchun (China)
  4. Chinese Academy of Sciences, Dalian (China). Dalian Inst. of Chemical Physics. State Key Lab. of Catalysis
  5. Dalhousie Univ., Halifax, NS (Canada). Dept. of Chemistry

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.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC); USDOE
Grant/Contract Number:
AC02-06CH11357; DEAC02-06CH11357
OSTI ID:
1686194
Alternate ID(s):
OSTI ID: 1816481
Journal Information:
Chemical Science, Vol. 11, Issue 45; ISSN 2041-6520
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

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