Efficient hydrogenolysis of fructose to 1,2-propanediol over bifunctional Ru-WO_(x)-MgO_(y) catalysts under mild reaction conditions via enhancing the chemoselective cleavage of C-C bonds  

作　　者：Shuang Luo Tie Shu Min Mao Haijie Yu Yuxin Zheng Daqian Ding Lingmei Liu Kexin Yao Jianjian Wang 

机构地区：[1]School of Chemistry and Chemical Engineering,State Key Laboratory of Coal Mine Disaster Dynamics and Control,Institute of Advanced Interdisciplinary Studies,Multi-scale Porous Materials Center,Chongqing University,Chongqing 401331,China [2]Key Laboratory for Efficient Conversion and Circular Economy of Coal,Chemical Engineering College,Inner Mongolia University of Technology,Hohhot 010051,Inner Mongolia,China

出　　处：《Journal of Energy Chemistry》2024年第5期311-321,共11页能源化学（英文版）

基　　金：the financial support from the Natural Science Foundation of Chongqing(CSTB2022NSCQ-MSX0458);the State Key Laboratory of Coal Mine Disaster Dynamics and Control(2011DA105287-MS202203);the Joint Fund for Innovation and Development of Chongqing(CSTB2022NSCQ-LZX0030);the financial support from the National Natural Science Foundation of China(22168027 and 22308169);the financial support from the Natural Science Foundation of Chongqing(cstc2021jcyj-msxmX0741);the financial support from the National Natural Science Foundation of China(22105028);the Natural Science Foundation of Chongqing(cstc2021jcyj-msxmX0572)。

摘　　要：Selective conversion of fructose to 1,2-propanediol(1,2-PDO)is considered as a sustainable and cost-effective alternative to petroleum-based processes,however,this approach still faces challenges associated with low efficiency and harsh reaction conditions.Here,we have successfully synthesized a novel bifunctional Ru-WO_(x)-MgO_(y) catalyst through a facile'one-pot'solvothermal method.Remarkably,this catalyst exhibits exceptional catalytic performances in the conversion of fructose to 1,2-PDO under mild reaction conditions.The yield of 1,2-PDO is up to 56.2%at 140°C for 4 h under an ultra-low hydrogen pressure of only 0.2 MPa,surpassing the reported results in recent literature(below 51%).Comprehensive characterizations and density functional theory(DFT)calculations reveal that the presence of oxygen vacancies in the Ru-WO_(x)-MgO_(y) catalyst,serving as active acidic sites,facilitates the chemoselective cleavage of C-C bonds in fructose,which leads to the generation of active intermediates and ultimately resulted in the high yield of 1,2-PDO.

关 键 词：Biomass FRUCTOSE 1 2-PROPANEDIOL Retroaldol condensation Heterogenous catalysis 

分 类 号：TQ426[化学工程] TQ223.162