Crystalline mesoporous zirconia catalysts having stable tetragonal pore wall structure
Patent
·
OSTI ID:672485
Methods are disclosed for the preparation of new sulfated mesoporous zirconia materials/catalysts with crystalline pore walls of predominantly tetragonal crystal structure, characterized by nitrogen physical sorption measurement, X-ray diffraction, transmission electron microscopy and catalytic tests using n-butane isomerization to iso-butane and alkylation of 1-naphthol with 4-tert-butylstyrene as probe reactions. Sulfate deposition is preferred for the transformation of a mesoporous precursor with amorphous pore walls into a material with crystalline pore walls maintaining the mesoporous characteristics. 17 figs.
- Research Organization:
- Northwestern Univ., Evanston, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG02-87ER13654
- Assignee:
- Northwestern Univ., Evanston, IL (United States)
- Patent Number(s):
- US 5,786,294/A/
- Application Number:
- PAN: 8-644,359
- OSTI ID:
- 672485
- Resource Relation:
- Other Information: PBD: 28 Jul 1998
- Country of Publication:
- United States
- Language:
- English
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