Abstract
Tungsten was incorporated into mesoporous alumina via a one pot sol–gel route. The structure and properties of the as-synthesized materials were well characterized by N2 sorption, XRD, 27Al NMR, XPS, DR–UV–Vis, Py-FTIR, HR-TEM and EDS. These samples possess high surface area, uniform pore size and large pore volume. Tungsten was evidently introduced into the framework of all samples, while extra-framework WO3 crystals were detected when W/Al mole ratio increased to 0.12 . The Py-FTIR results indicate that the Lewis acidity sites are predominant in W(x)-MA samples, and Brønsted acid sites are detected in W(0.24)-MA. The catalytic performance of the mixed W(x)-MA + Ru/C catalyst was evaluated in the hydrogenolysis conversion of cellulose. The notably enhanced selectivity of ethylene glycol was obtained when using W(0.24)-MA catalyst.
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This work was supported by the National Science Foundation of China (Nos. 21276191, 21076152).
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Wang, H., Guo, Y., Zheng, D. et al. Direct incorporation of tungsten into ordered mesoporous alumina and enhanced selectivity for converting cellulose to ethylene glycol. J Porous Mater 22, 919–925 (2015). https://doi.org/10.1007/s10934-015-9965-1
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DOI: https://doi.org/10.1007/s10934-015-9965-1