Acetone-mediated glucose isomerization over a ZrO_(2)-NC composite catalystOA
The agglomeration-prone properties of metal oxide catalysts limit their catalytic efficiency in the isomerization of glucose to fructose.Herein,the hierarchical structure and abundant coordination groups of collagen fibers were used to anchor Zr^(4+),and a highly dispersed ZrO_(2)-nitrogen-doped carbon(ZrO_(2)-NC)composite catalyst was subsequently fabricated by calcination.For the catalytic glucose-to-fructose isomerization over ZrO_(2)-NC,fructose was obtained in 41.3%yield and 85.3%selectivity in a water-acetone solvent at 120℃ for 10 min.The electron-deficient environment of ZrO_(2)surface during charge transfer from ZrO_(2)-to-NC layer facilitated the preferential adsorption of glucose,which accelerated glucose isomerization and fructose desorption.The amphoteric catalyst triggered both proton transfer on the Bronsted base sites and the intramolecular hydride shift of glucose on the Lewis acid sites of ZrO_(2)-NC in the mixed solvent.The latter isomerization mechanism depended on the presence of acetone,which lowered the energy barrier and increased fructose yield.
Mi Gao;Hongquan Fu;Wenhua Zhang;Zhicheng Jiang;Bi Shi
College of Biomass Science and Engineering,Sichuan University,Chengdu,610065,China National Engineering Laboratory for Clean Technology of Leather Manufacture,Sichuan University,Chengdu,610065,ChinaChemical Synthesis and Pollution Control Key Laboratory of Sichuan Province,College of Chemistry and Chemical Engineering,China West Normal University,Nanchong,637000,ChinaCollege of Biomass Science and Engineering,Sichuan University,Chengdu,610065,China National Engineering Laboratory for Clean Technology of Leather Manufacture,Sichuan University,Chengdu,610065,China Key Laboratory of Leather Chemistry and Engineering(Sichuan University),Ministry of Education,Chengdu,610065,ChinaCollege of Biomass Science and Engineering,Sichuan University,Chengdu,610065,China National Engineering Laboratory for Clean Technology of Leather Manufacture,Sichuan University,Chengdu,610065,China Key Laboratory of Leather Chemistry and Engineering(Sichuan University),Ministry of Education,Chengdu,610065,ChinaCollege of Biomass Science and Engineering,Sichuan University,Chengdu,610065,China National Engineering Laboratory for Clean Technology of Leather Manufacture,Sichuan University,Chengdu,610065,China Key Laboratory of Leather Chemistry and Engineering(Sichuan University),Ministry of Education,Chengdu,610065,China
化学化工
Glucose isomerizationFructoseZrO_(2)AcetoneAdsorption
《Green Energy & Environment》 2026 (2)
P.454-463,10
supported by National Natural Science Foundation of China(22478265)Sichuan Science and Technology Program(2024NSFSC0222)the Fundamental Research Funds for the Central Universities.We are thankful to Hui Wang at the Analytical&Testing Center,Sichuan University,for assisting with SEM characterization.We appreciate Dr.Xiu He and Dr.Ying Song from the College of Biomass Science and Engineering of Sichuan University for helping with experimental.
评论