文献类型：期刊文献

英文题名：Low temperature upgrading glucose to aromatics via a H2-free melting-catalysis strategy

作者：Zhang, Zhe[1];Chen, Huan[1];Pan, Helin[1];Zhang, Yayun[1,2];Duan, Dengle[3];Long, Donghui[1,2]

机构：[1]East China Univ Sci & Technol, Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem Engn, Key Lab Specially Funct Polymer Mat & Related Tech, Minist Educ, Shanghai 200237, Peoples R China;[3]Zhongkai Univ Agr & Engn, Guangdong Prov Key Lab Lingnan Specialty Food Sci, Guangzhou 510000, Peoples R China

年份：2023

卷号：324

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY

收录：;EI(收录号：20225313323064);WOS:【SCI-EXPANDED(收录号:WOS:001005368700001)】；

基金：This work was financially supported by National Natural Science Foundation of China (No. 22008073, No. 21878091) , Shanghai Sailing Program (No. 20YF1410600) , Fundamental Research Funds for the Central Universities, and Shanghai Talent Development Fund (No. 2021026) .

语种：英文

外文关键词：Low temperature; Glucose conversion; Mesoporous ZSM-5; Aromatics; Acidity

摘要：Converting biomass into valuable aromatics is a desirable way to alleviate global energy crisis but is currently challenged by massive energy consumption. Herein, a H2-free melting-catalysis strategy is proposed for direct converting glucose into aromatics under mild conditions by nano-sized mesoporous ZSM-5. We demonstrate that the melting of glucose promotes the accessibility to catalytic sites and enhances subsequent catalytic processes. The introduction of inter-crystalline mesopores facilitates diffusion of molecules, and the moderate acidity favors the deoxygenation of oxygenated intermediates, both of which promote aromatics formation. Consequently, 10ZSM-5-80 with abundant inter-crystalline mesopores and optimum acidity achieves a maximum aromatics selectivity of 95.4 area% at 280 degrees C, of which 70.2% are monocyclic aromatic hydrocarbons. Furthermore, a possible mechanism is proposed based on experimental and online TG-FTIR-MS results. Our findings provide a new pathway for the selective generation of aromatics from glucose, which is expected to advance nextgeneration biomass utilization.