Nur, Hadi and Poh, Ng Eng and Muhid, Mohd Nazlan Mohd and Hamdan, Halimaton (2006) Sulphated AlMCM-41: Mesoporous solid BrÃ¸nsted acid catalyst for dibenzoylation of biphenyl. Catalysis Today, 114 (2-3). pp. 257-262. ISSN 0920-5861
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Official URL: http://dx.doi.org/10.1016/j.cattod.2006.01.010
Sulphated mesoporous solid BrÃ¸nsted acid catalyst (SO4-AlMCM-41) was prepared by impregnation of sulphuric acid on the surface of H-AlMCM-41. Characterization of SO4-AlMCM-41 by pyridine adsorption studies and 27Al MAS NMR showed that the presence of BrÃ¸nsted acidity was correlated with octahedrally coordinated aluminium and solvent environment. Catalytic study demonstrated that the SO4-AlMCM-41 catalyst has a higher activity in the dibenzoylation of biphenyl with benzoyl chloride than sulphuric acid, H-AlMCM-41 and sulphated amorphous silica.
|Uncontrolled Keywords:||Biphenyl, brÃ¸nsted acidity, dibenzoylation, bulphated AlMCM-41|
|Subjects:||Q Science > QD Chemistry|
|Deposited By:||Maznira Sylvia Azra Mansor|
|Deposited On:||01 Jan 2009 07:14|
|Last Modified:||01 Jan 2009 07:14|
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