燃料化学学报（中英文）2026，Vol.54Issue(8)：232-242,11.DOI:10.1016/S1872-5813(26)60663-9
焙烧气氛精准调控的Cu/SiO2催化剂用于高效催化丁二酸二甲酯加氢制1,4-丁二醇
Calcination atmosphere-engineered Cu/SiO2 catalysts for efficient hydrogenation of dimethyl succinate to 1,4-butanediol
摘要
Abstract
The catalytic hydrogenation of biomass-derived dimethyl succinate(DMS)to 1,4-butanediol(BDO)represents a pivotal route for producing high-value C4 chemicals in the context of green chemistry.Cu/SiO2 catalysts are known for their high selectivity in hydrogenating ester groups,and their performance is correlated with the microstructure of the copper species.Although calcination is a critical step in defining this active structure,the systematic influence of the calcination atmosphere remains underexplored.In this study,Cu/SiO2 catalysts were prepared via a urea-assisted hydrothermal method and calcined under different atmospheres to elucidate their effects on catalyst physicochemical properties and subsequent hydrogenation performance.A comprehensive characterization suite(N2 physisorption,FT-IR,H2-TPR,XRD,TEM,N2O pulse chemisorption,XPS and NH3-TPD)revealed that the calcination atmosphere profoundly alters the metal-support interaction,thereby regulating the dispersion and chemical state of the loaded copper species.Specifically,calcination in air promoted a stronger metal-support interaction,effectively enhancing the dispersion of copper species and increasing the proportion of key active Cu+species.Consequently,the air-calcined catalyst demonstrated superior performance,achieving 92.37％DMS conversion and 64.15％BDO yield under optimized conditions(210 ℃,5.0 MPa,WHSV of 0.6 h-1,H2/DMS molar ratio of 100).This work underscores calcination atmosphere engineering as a potent strategy for optimizing metal-support interactions in heterogeneous catalysts for efficient hydrogenation processes.关键词
铜基催化剂/焙烧气氛/金属-载体相互作用/加氢Key words
copper-based catalyst/calcination atmosphere/metal-support interaction/hydrogenation分类
化学化工引用本文复制引用
邵旭浩,张旭妍,陈晓荣,杜嘉欣,艾培培,谭明慧,高志华,黄伟..焙烧气氛精准调控的Cu/SiO2催化剂用于高效催化丁二酸二甲酯加氢制1,4-丁二醇[J].燃料化学学报（中英文）,2026,54(8):232-242,11.基金项目
Supported by National Natural Science Foundation of China(22008166)and Fundamental Research Program of Shanxi Province(202403021211029,201901D211047). （22008166）
