摘要
采用离子交换和共沉淀两步法合成了氧化石墨烯-四氧化三铁复合物(GO-Fe3O4),并负载钯(Pd)纳米颗粒得到了催化剂Pd-GO-Fe3O4.用SEM和FTIR对其表面形貌和组成进行了表征.160℃下,以N,N-二甲基甲酰胺(DMF)为溶剂,将该催化剂用于溴苯和丙烯酸酯的Heck偶合反应中,产率可达98.6%,且连续使用4次后,产率仍可保持97.51%.
In this paper, graphene oxide-ferroferric oxide （GO-Fe3O4） composite was synthesized by a two-step process consisting of ion-exchange and eoprecipitation and then it was deposited with palladium nanoparticles to obtain the lamellar catalyst Pd-GO-Fe3O4. The composition and structure were confirmed by XRD and SEM. The Heck reaction of bromobenzene and acrylic ester by the catalyst Pd-GO-Fe3 O4 were studied and the results showed that the yield can be 98.6% at 160 ℃ when performed with N, N-dimethylformamide （DMF） as solvent and it can still be 97.5 % even after 4 recycling use.
出处
《分子催化》
EI
CAS
CSCD
北大核心
2011年第6期549-556,共8页
Journal of Molecular Catalysis(China)
基金
国家自然科学基金面上项目(20965003)
江西省科技支撑计划(2010BGA01800)
教育部科学技术研究重点项目(210112)
教育部留学回国人员科研启动基金
