Journal
CATALYSIS TODAY
Volume 114, Issue 2-3, Pages 257-262Publisher
ELSEVIER
DOI: 10.1016/j.cattod.2006.01.010
Keywords
sulphated AlMCM-41; bronsted acidity; dibenzoylation; biphenyl
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Sulphated mesoporous solid Bronsted acid catalyst (SO4-AIMCM-41) was prepared by impregnation of sulphuric acid on the surface of H-AIMCM-41. Characterization of SO4-AIMCM-41 by pyridine adsorption studies and Al-27 MAS NMR showed that the presence of Bronsted acidity was correlated with octahedrally coordinated aluminium and solvent environment. Catalytic study demonstrated that the SO4-AIMCM-41 catalyst has a higher activity in the dibenzoylation of biphenyl with benzoyl chloride than sulphuric acid, H-AIMCM-41 and sulphated amorphous silica. (c) 2006 Elsevier B.V. All rights reserved.
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