Journal
CATALYSIS LETTERS
Volume 142, Issue 4, Pages 480-485Publisher
SPRINGER
DOI: 10.1007/s10562-012-0768-6
Keywords
Titanium oxide; Molybdenum oxide; Self-supporting; High surface area; Hydrodesulfurization
Categories
Funding
- Chinese National Key Technology Research and Development Program [2006AA03Z455]
- National Basic Research Program of China [2009CB226103]
- NSFC-RGC [20731160614, HKU 735/07]
- Changjiang Scholars and Innovative Research Team in University [IRT0732]
- National Natural Science Foundation of China [20736002, 20706028, 20976080]
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A mesoporous MoO3/TiO2 composite was prepared from titanate derivative by consecutive self-supporting and ammonia method. All samples were characterized by X-ray Diffraction, N-2 adsorption-desorption, Raman Spectra and Field-Emission Scanning Electron Microscopy. The results showed that mesoporous MoO3/TiO2 composite had a higher surface area (173 m(2)/g) and a better MoO3 dispersion than that prepared by traditional impregnation (90 m(2)/g). As for hydrodesulfurization tests, mesoporous MoO3/TiO2 composite in this case presented a better catalytic performance, attributed to its high surface area and good dispersion of MoO3. It can be found that self-supporting played a key role in preparing mesoporous MoO3/TiO2 composite with high surface area. Additionally, aqueous ammonia could effectively dissolve excess MoO3, which helped to obtain mesoporous MoO3/TiO2 composite with better dispersion of MoO3.
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