Adjacent acid sites cooperatively catalyze fructose to 5-hydroxymethylfurfural in a new, facile pathway  

作　　者：Xia Yu Yueying Chu Lei Zhang Hui Shi Mingjiang Xie Luming Peng Xuefeng Guo Wei Li Nianhua Xue Weiping Ding 

机构地区：[1]Key Lab of Mesoscopic Chemistry,School of Chemistry and Chemical Engineering,Nanjing University,Nanjing 210093,Jiangsu,China [2]State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,Wuhan Center for Magnetic Resonance,Wuhan Institute of Physics and Mathematics,the Chinese Academy of Sciences,Wuhan 430071,Hubei,China [3]Institute of Theoretical and Computational Chemistry,School of Chemistry and Chemical Engineering,Nanjing University,Nanjing 210093,Jiangsu,China [4]Department of Chemistry and Catalysis Research Center,Technische Universitat Miinchen,Lichtenbergstr.4.85747 Garching,Germany

出　　处：《Journal of Energy Chemistry》2020年第8期112-117,I0004,共7页能源化学（英文版）

基　　金：supported by the Natural Science Foundation of Jiangsu Province (BK20151380);NSF of China (21103087 and 21872067);supported by the Fundamental Research Funds for the Central Universities (020514380116)。

摘　　要：To study the effect of adjacent hydroxyl to the active sites, several acid catalysts, i.e. substituted benzoic acids with adjacent carboxyl are employed in the fructose dehydration to 5-hydroxymethylfurfural(HMF).Experimental results reveal that Br?nsted acid sites with adjacent carboxyl present higher catalytic ability than isolated ones. Computational results suggest that the adjacent sites lead to co-interaction on fructose, corresponding more stable transition state and faster HMF formation rate. Based on the enhancement from the adjacent sites, a novel ordered mesoporous carbon(OMC) full of carboxyls in surface is prepared and turns out to be an effective solid catalyst for HMF production from fructose derived from biomass.

关 键 词：Fructose dehydration Adjacent sites Cooperative catalysis 5-HYDROXYMETHYLFURFURAL 

分 类 号：TQ251.1[化学工程—有机化工]