Efficient hydrogenolysis of fructose to 1,2-propanediol over bifunctional Ru-WOx-MgOy catalysts under mild reaction conditions via enhancing the chemoselective cleavage of C-C bonds

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外文摘要：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 associ-ated with low efficiency and harsh reaction conditions.Here,we have successfully synthesized a novel bifunctional Ru-WOx-MgOy 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 ℃ 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 pres-ence of oxygen vacancies in the Ru-WOx-MgOy 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.

外文关键词：

BiomassFructose1,2-PropanediolRetro aldol condensationHeterogenous catalysis

作者：

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

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作者单位：

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

Key Laboratory for Efficient Conversion and Circular Economy of Coal,Chemical Engineering College,Inner Mongolia University of Technology,Hohhot 010051,Inner Mongolia,China

基金：

Natural Science Foundation of ChongqingState Key Laboratory of Coal Mine Disaster Dynamics and ControlJoint Fund for Innovation and Development of ChongqingNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of ChongqingNational Natural Science Foundation of ChinaNatural Science Foundation of Chongqing

项目编号：

CSTB2022NSCQ-MSX04582011DA105287-MS202203CSTB2022NSCQ-LZX00302216802722308169cstc2021jcyjmsxmX074122105028cstc2021jcyjmsxmX0572

出版年：

2024

DOI：

10.1016/j.jechem.2024.01.007

能源化学

中国科学院大连化学物理研究所中国科学院成都有机化学研究所

能源化学

CSTPCDEI

影响因子：0.654

ISSN：2095-4956

年,卷(期)：2024.92(5)