Abstract
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, N2 adsorption–desorption, Raman Spectra and Field-Emission Scanning Electron Microscopy. The results showed that mesoporous MoO3/TiO2 composite had a higher surface area (173 m2/g) and a better MoO3 dispersion than that prepared by traditional impregnation (90 m2/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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Acknowledgments
This work was supported by the Chinese National Key Technology Research and Development Program (Grant No. 2006AA03Z455), the National Basic Research Program of China (No. 2009CB226103), NSFC-RGC Joint Research Award (No. 20731160614 and HKU 735/07), Changjiang Scholars and Innovative Research Team in University (No. IRT0732), and the National Natural Science Foundation of China (Grant Nos. 20736002, 20706028, 20976080).
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Li, L., Wang, Y., Shi, K. et al. Preparation and Characterization of Mesoporous MoO3/TiO2 Composite with High Surface Area by Self-Supporting and Ammonia Method. Catal Lett 142, 480–485 (2012). https://doi.org/10.1007/s10562-012-0768-6
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DOI: https://doi.org/10.1007/s10562-012-0768-6