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Effects of Heat Treatment Temperatures on the Performance of Au/TiO2 Catalyst for Liquid Phase Selective Hydrogenation of Phthalic Anhydride
Corresponding Author(s) : Yingxin Liu
Asian Journal of Chemistry,
Vol. 25 No. 5 (2013): Vol 25 Issue 5
Abstract
A series of Au/TiO2 catalysts with the same gold loading were prepared by deposition-precipitation method followed by calcination and reduction at different temperatures and applied into the hydrogenation of phthalic anhydride. The effects of heat treatment temperatures on their performances were investigated. It was observed that higher calcination temperature and reduction temperature led to an increase in the gold particle size and a collapse of mesoporous structure, which was accompanied by the decrease in the catalytic performance. Among the Au/TiO2 catalysts investigated, the one calcined at 300 ºC and reduced at 200 ºC, with smaller gold particle size (3.1 nm), exhibited the best catalytic performance with 94.7 % conversion and 94.2 % selectivity to phthalide.
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References
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A. Corma and P. Serna, Science, 313, 332 (2006).
A. Corma, P. Serna and H. Garcia, J. Am. Chem. Soc., 129, 6358 (2007).
Y.Y. Chen, J.S. Qiu, X.K. Wang and J.H. Xiu, J. Catal., 242, 227 (2006).
D.P. He, H. Shi, Y. Wu and B.Q. Xu, Green Chem., 9, 849 (2007).
L.Q. Liu, B.T. Qiao, Z.J. Chen, J. Zhang and Y.Q. Deng, Chem. Commun., 653 (2009).
F. Cárdenas-Lizana, S. Gómez-Quero,A. Hugon, L. Delannoy, C. Louis and M.A. Keane, J. Catal., 262, 235 (2009).
K. Shimizu, Y. Miyamoto, T. Kawasaki, T. Tanji, Y. Tai and A. Satsuma, J. Phys. Chem. C., 113, 17803 (2009).
P. Serna, P. Concepcion and A. Corma, J. Catal., 265, 19 (2009).
F. Cárdenas-Lizana, Z.M. de Pedro, S. Gómez-Quero and M.A. Keane, J. Mol. Catal. A, 326, 48 (2010).
P. Serna, M. Boronat and A. Corma, Top. Catal., 54, 439 (2011).
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E. Bus, R. Prins and J.A. van Bokhoven, Catal. Commun., 8, 1397 (2007).
B.C. Campo, S. Ivanova, C. Gigola, C. Petit and M.A. Volpe, Catal. Today, 133, 661 (2008).
C. Milone, M.C. Trapani and S. Galvagno, Appl. Catal. A, 337, 163 (2008).
J. Lenz, B.C. Campo, M. Alvarez and M.A. Volpe, J. Catal., 267, 50 (2009).
H.Y. Chen, C.T. Chang, S.J. Chiang, B.J. Liaw and Y.Z. Chen, Appl. Catal. A, 381, 209 (2010).
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M.M. Wang, L. He, Y.M. Liu, Y. Cao, H.Y. He and K.N. Fan, Green Chem., 13, 602 (2011).
L.N. Protasova, E.V. Rebrov, H.E. Skelton, A.E.H. Wheatley and J.C. Schouten, Appl. Catal. A, 399, 12 (2011).
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M. Boronat, F. Illas and A. Corma, J. Phys. Chem. A, 113, 3750 (2009).
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