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作 者:单纯
机构地区:[1]Department of Environmental and Chemical Engineering,Shanghai University [2]Department of Automation Science,Guangdong Polytechnic Normal University
出 处:《Journal of Wuhan University of Technology(Materials Science)》2011年第3期455-458,共4页武汉理工大学学报(材料科学英文版)
基 金:Funded by the Guangdong Science Project (No.2008B011000015)
摘 要:A new carbonaceous catalyst with sulfonic acid group (-SO3H) was prepared by incomplete carbonization of β-cyclodextrin followed by sulfonation.The sulfonated amorphous carbon was characterized by IR,elemental analysis,DSC-TGA and PXRD,and the catalytic activity was investigated to be an efficient catalyst for the esterification reactions with maximum yield of 87%.The sulfonated carbonaceous catalyst was readily separated from the reaction solution and keeps approximately equal catalytic activity.The results confirm that the active centre is the hydrophilic sulfonic acid functional group in the esterification reactions.A new carbonaceous catalyst with sulfonic acid group (-SO3H) was prepared by incomplete carbonization of β-cyclodextrin followed by sulfonation.The sulfonated amorphous carbon was characterized by IR,elemental analysis,DSC-TGA and PXRD,and the catalytic activity was investigated to be an efficient catalyst for the esterification reactions with maximum yield of 87%.The sulfonated carbonaceous catalyst was readily separated from the reaction solution and keeps approximately equal catalytic activity.The results confirm that the active centre is the hydrophilic sulfonic acid functional group in the esterification reactions.
关 键 词:β-Cyclodextrin carbonization carbonaceous catalyst esterification activity
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