Vapor-Phase Oxidant-Free Dehydrogenation of 2,3- and 1,4-Butanediol over Cu/SiO2 Catalyst Prepared by Crown-Ether-Assisted Impregnation
Vapor-Phase Oxidant-Free Dehydrogenation of 2,3- and 1,4-Butanediol over Cu/SiO2 Catalyst Prepared by Crown-Ether-Assisted Impregnation
复制标题
DOI：
10.3390/chemistry5010030
复制
发表时间：
2023-02
期刊：
影响因子：
--
通讯作者：
Enggah Kurniawan;Shuya Hosaka;Masayuki Kobata;Yasuhiro Yamada;Satoshi Sato
中科院分区：
文献类型：
--
作者：
Enggah Kurniawan;Shuya Hosaka;Masayuki Kobata;Yasuhiro Yamada;Satoshi Sato
采用冠醚辅助浸渍法制备了高分散Cu纳米粒子的SiO2负载Cu（Cu/SiO2）催化剂。在2，3-和1，4-丁二醇脱氢反应中，12-冠-4-醚辅助的Cu/SiO2催化剂的性能优于几种由不同有机添加剂制备的Cu/SiO2催化剂。发现催化活性，即，由2，3-丁二醇生成乙偶姻和由1，4-丁二醇生成γ-丁内酯的速率与铜的表面积成正比。
A silica-supported copper (Cu/SiO2) catalyst containing highly dispersed Cu nanoparticles was prepared via a crown-ether-assisted impregnation method. A 12-crown-4-ether-assisted Cu/SiO2 catalyst outperformed several Cu/SiO2 catalysts prepared with various organic additives in the dehydrogenation of 2,3- and 1,4-butanediol. It was found that the catalytic activity, i.e., the formation rate of acetoin from 2,3-butanediol and that of γ-butyrolactone from 1,4-butanediol, was proportional to the copper surface area.