文献类型：期刊文献

英文题名：Efficient hydrogenolysis of cellulose into sorbitol catalyzed by a bifunctional catalyst

作者：Zhu, Wenwen[1];Yang, Hanmin[2,3];Chen, Jizhong[1];Chen, Chen[1];Guo, Li[1];Gan, Huimei[1];Zhao, Xiuge[1];Hou, Zhenshan[1]

机构：[1]E China Univ Sci & Technol, Res Inst Ind Catalysis, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]South Cent Univ Nationalities, State Ethn Affairs Commiss, Key Lab Catalysis & Mat Sci, Wuhan 430074, Hubei Province, Peoples R China;[3]South Cent Univ Nationalities, Minist Educ, Wuhan 430074, Hubei Province, Peoples R China

年份：2014

卷号：16

期号：3

起止页码：1534

外文期刊名：GREEN CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000332039200065)】；

基金：The authors are grateful for support from the National Natural Science Foundation of China (21073058 and 21373082), the Research Fund for the Doctoral Program of Higher Education of China (20100074110014), and the Fundamental Research Funds for the Central Universities.

语种：英文

摘要：A sulfonic acid-functionalized silica-supported ruthenium catalyst (Ru/SiO2-SO3H) was employed for the hydrogenolysis of cellulose in one pot in neutral water medium. Ru/SiO2-SO3H is a bifunctional catalyst containing both a Bronsted acidic site and a metal site (Ru). Compared with the mechanical mixture of a silica-supported Bronsted acid (SiO2-SO3H) and a silica-supported Ru catalyst (Ru/SiO2), the bifunctional catalyst showed much higher yield of sorbitol, which could reach up to 61.2% when the reaction was performed for 10 h at 150 degrees C. Through the characterization by XPS and pyridine-adsorbed FT-IR, the existence of the interaction between sulfonic groups and Ru nanoparticles in the Ru/SiO2-SO3H catalyst was observed. The sulfonic acid groups and metal sites in the adjacent position were important for enhancing the yield of sorbitol. In addition, the present catalyst can be reused five times with only a slight decrease in yield of sorbitol in the consecutive recycles.