摘要
通过共还原氧化石墨烯(GO)和氯钯酸制备了Pd/rGO负载型催化剂,采用透射电镜、X射线衍射、光电子能谱、电感耦合等离子体发射光谱等对其进行表征,并将Pd/rGO催化剂应用于苯乙烯和碘苯的Heck反应,研究其最佳催化条件.结果表明:Pd/rGO负载型催化剂有效提高了Pd对Heck反应的催化效率;当Pd负载量为7.53%,碱源为K_(2)CO_(3),溶剂为DMF,85℃条件下反应8 h时,Pd/rGO催化碘苯和苯乙烯的产率最高,达91.3%;Pd/rGO经4次循环使用后,催化产率为79.4%,仍具有较高的催化活性.
Reduced graphene oxide(rGO)supported Pd/rGO catalysts were prepared using co-reduction of graphene oxide(GO)and chloropalladic acid.It was characterized by TEM,XRD,XPS and inductively coupled plasma emission spectroscopy(ICP-OES).In order to study the catalytic performance,the catalyst was applied to Heck reaction.Due to the special structural characteristics of rGO,the use of rGO improves the catalytic efficiency of Pd effectively.With w=7.53%of Pd,K_(2)CO_(3) as the base,DMF as the solvent,the catalyst provides a yield of 91.3%in Heck reaction of iodobenzene and styrene at 85℃for 8 h.After Pd/rGO is used 4 times,its catalyst activity is still high.
作者
颜廷良
张玉
朱啸庆
张雪华
刘总堂
戴兢陶
徐国栋
YAN Tingliang;ZHANG Yu;ZHU Xiaoqing;ZHANG Xuehua;LIU Zongtang;DAI Jingtao;XU Guodong(School of Chemistry and Environmental Engineering,Yancheng Teachers University,Yancheng 224007,China;School of Environmental Engineering,Yancheng Technician College Jiangsu Province,Yancheng 224002,China)
出处
《扬州大学学报（自然科学版）》
CAS
北大核心
2022年第1期19-24,共6页
Journal of Yangzhou University：Natural Science Edition
基金
国家自然科学基金资助项目(51907173,41877118,22172139)。
