一步合成介孔碳-金复合催化剂及其在苯乙烯环氧化中的应用  

Gold Nanoparticles Inserted in Mesoprous Carbons Prepared by a One-pot Procedure for Aerobic Epoxidation of Styrene

作　　者：屈金兰 张世祖 廖九英[1] 苏胜培[1] 喻宁亚[1] QU Jin-lan;ZHANG Shi-zu;LIAO Jiu-ying;SU Sheng-pei;YU Ning-ya(National ＆ Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources,Hunan Normal University,Changsha 410081,China)

机构地区：[1]湖南师范大学石化新材料与资源精细利用国家地方联合工程实验室,中国长沙410081

出　　处：《湖南师范大学自然科学学报》2018年第4期59-65,共7页Journal of Natural Science of Hunan Normal University

基　　金：国家自然科学基金资助项目(20803021);湖南师范大学青年优秀人才培养计划资助项目(ET21104)

摘　　要：以酚醛树脂作为碳源,F127(EO_(106)PO_(70)EO_(106))作为模板剂,氯金酸为金源,一步合成了有序介孔碳-纳米金复合催化剂(Au/FDU-15).采用FT-TR,XRD,N2吸附-脱附,ICP,TEM等手段对合成的催化剂进行表征.以分子氧为氧化剂的苯乙烯环氧化反应为探针反应,考察了介孔碳-金复合催化剂焙烧温度、金含量、p H值等制备条件对苯乙烯环氧化反应的影响.A series of Au-mesoporous carbon composite catalysts with Au nanoparticles embedded in channel walls were prepared via a one-pot procedure by using oligomeric phenolic resin as carbon source, F127（EO106PO70EO106） as template, and chlorauric acid as Au precursor. The as-obtained composite catalysts were characterized by means of FT-IR, XRD, nitrogen adsorption-desorption, ICP, and TEM techniques. The effects of calcination temperature, Au content in the catalysts and pH value on the performance of the catalysts in styrene epoxidation were investigated systematically.

关 键 词：介孔碳 纳米金 苯乙烯 分子氧 环氧化 

分 类 号：O614.123[理学—无机化学] TD953[理学—化学]