化工进展2016,Vol.35Issue(4):1113-1120,8.DOI:10.16085/j.issn.1000-6613.2016.04.023
水处理提高MOF-199催化苯羟基化反应性能
Enhanced catalytic properties of MOF-199 with water treatment in the direct hydroxylation of benzene
摘要
Abstract
Cu(OAc)2·H2O was treated with benzenetricarboxylic acid under stirring to form metal-organic framework MOF-199,which was then characterized by XRD,IR and BET. The obtained MOF-199 was treated with water and then applied for the hydroxylation of benzene as catalyst. The effect factors of MOF-199 amount,reaction temperature,reaction time,H2O2 amount on the yield and the selectivity of benzene oxygenates were investigated. Results indicated suitable conditions for the preparation of benzene oxygenates,were that the water-treated MOF-199 (140mg,0.23mmol), acetonitrile (4mL),benzene (1.1mL) and H2O2 (3.3mL) were mixed together,and then reacted for 30min at 60℃ in a water bath. The corresponding oxygenates had a yield of 23.3%,the selectivity to phenol of 53.1%,and the turnover frequency(TOF) was 25.0h−1. Pretreatment of MOF-199 catalyst with water significantly accelerated the catalytic oxidation of benzene to the corresponding oxygenates and preserved the metal-organic framework of MOF-199 due to the formation of a new reaction mode.关键词
金属有机框架化合物/MOF-199/水合物/苯/催化Key words
metal-organic framework/MOF-199/hydrate/benzene/catalysis分类
化学化工引用本文复制引用
刘艳凤,张天永,吴武斌,李彬,周政,周浩浩..水处理提高MOF-199催化苯羟基化反应性能[J].化工进展,2016,35(4):1113-1120,8.基金项目
国家自然科学基金(21103121,21276187)及海南大学本科生创新创业课题项目。 ()