陕西师范大学学报（自然科学版）2019，Vol.47Issue(1)：109-116,8.DOI:10.15983/j.cnki.jsnu.2019.01.115
Cu-SiO2催化环己醇气相脱氢制环己酮的研究
The gas-phase dehydrogenation of cyclohexanol to cyclohexanone over Cu-SiO2 catalysts
摘要
Abstract
A series of Cu-SiO2samples with different contents of CuO was synthesized via the onepot evaporation induced self-assembly method, and was evaluated as a catalyst for the gas-phase dehydrogenation of cyclohexanol to cyclohexanone.The catalysts were characterized by XRD, TG-DSC, TEM, and N2adsorption-desorption at low temperatures.At the reaction temperature of 300℃, the Cu-SiO2catalyst containing 10％CuO showed the best performance among the investigated samples, i.e., the initial conversion of cyclohexanol was over 90％and the selectivity of cyclohexanone was over 99％.From the results of the long-term reaction (50h) and the regeneration of the used catalyst, the sintering of the metallic Cu particles was revealed to be responsible for the catalyst deactivation.These findings are important for the further development of a high-performance Cu-based catalyst for the titled reaction.关键词
环己醇脱氢/环己酮/Cu/稳定性Key words
cyclohexanol dehydrogenation/cyclohexanone/Cu/stability分类
化学化工引用本文复制引用
闫梦霄,肖勇山,石先莹,葛汉青,李婷,宋永红,刘昭铁,刘忠文..Cu-SiO2催化环己醇气相脱氢制环己酮的研究[J].陕西师范大学学报（自然科学版）,2019,47(1):109-116,8.基金项目
国家重点研发计划 (2018YFB0604600-04) （2018YFB0604600-04）
中央高校基本科研业务费专项资金 (GK201601005) （GK201601005）
