期刊
CATALYSIS TODAY
卷 90, 期 1-2, 页码 145-150出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cattod.2004.04.020
关键词
T/MCM-41 (T = Ti, V, Nb, Cu, Fe, Cr); liquid-phase oxidation; epoxidation of olefins; sulphoxidation; hydroxylation
This review article is devoted to the discoveries and/or knowledge developed in the past 10 years in the area of catalytic liquid-phase oxidation with hydrogen peroxide on mesoporous molecular sieves of MCM-41 type modified with various transition metals. The following parameters influencing activity and selectivity of the catalysts are considered: (i) nature of matrix for metal species limiting diffusion effects; (ii) isolation of metals; (iii) hydrophobicity of catalysts; (iv) nature of solvent; (v) reducibility of metal species; (vi) leaching of metal from the solid. Advantages and disadvantages of MCM-41 materials are pointed out in relation to the properties of TS-1 and TS-2 zeolites. (C) 2004 Elsevier B.V. All rights reserved.
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