高校化学工程学报2023，Vol.37Issue(6)：936-942,7.DOI:10.3969/j.issn.1003-9015.2023.06.008
铜锌催化剂的制备及炔醛化反应合成1,4-丁炔二醇
Preparation of Cu-Zn catalysts for ethynylation of formaldehyde to 1,4-butynediol
摘要
Abstract
A series of Cu-Zn catalysts were prepared by a co-precipitation method to study the effect of Cu-Zn catalysts structure on ethynylation performance in 1,4-butynediol synthesis.The influences of Cu/Zn molar ratio,addition mode of precipitator and calcination temperature in the preparation process of Cu-Zn catalysts on the performance of the catalysts were investigated.The results showed that Cu-Zn catalyst prepared at a copper to zinc molar ratio of 2∶1,addition of precipitator into salt solution,and a calcination temperature of 450℃exhibited the best catalytic activity.Furthermore,after the addition of Zn species,CuO particle size decreased and dispersion increased,the electronic synergy between Cu and Zn and oxygen vacancy was the main reasons for improving the ethynylation performances.The excessive reduction of Cu2+ in Cu-Zn catalysts to Cu affected the activity and stability of catalysts.关键词
炔醛化反应/铜锌催化剂/焙烧温度/氧空位Key words
ethynylation of formaldehyde/Cu-Zn catalyst/calcination temperature/oxygen vacancy分类
化学化工引用本文复制引用
杨林雪,杨桂花,王吉德,李天翼..铜锌催化剂的制备及炔醛化反应合成1,4-丁炔二醇[J].高校化学工程学报,2023,37(6):936-942,7.基金项目
新疆维吾尔自冶区自然科学基金(2023D01C08) （2023D01C08）
大连理工大学精细化工国家重点实验室开放课题基金(KF2103) （KF2103）
新疆大学2022年校级大学生创新训练计划(XJU-SRT-22019). （XJU-SRT-22019）
