刘文,郑龙珍.Fe3O4-氧化石墨烯-钯催化剂的制备及其对Heck 反应催化研究[J].分子催化,2011,(6):549-556 |
Fe3O4-氧化石墨烯-钯催化剂的制备及其对Heck 反应催化研究 |
Synthesis of Fe3O4-Graphene oxide-Palladium Catalyst and Its Application in Heck Reaction |
投稿时间:2011-09-21 修订日期:2011-10-27 |
DOI: |
中文关键词: 氧化石墨烯 四氧化三铁 钯催化剂 Heck反应 |
英文关键词:graphene oxide Fe3O4 palladium catalyst Heck coulping reaction |
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目);国家教育部回国人员科研启动基金 |
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中文摘要: |
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Fe3O4-GO-Pd。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98.64 %,且连续使用4次后,产率仍可保持97.51 %。 |
英文摘要: |
In this paper, graphene oxide-ferroferric oxide (GO-Fe3O4) composite was synthesized by a two-step process consisting of ion-exchange and coprecipitation and then it was deposited with palladium nanoparticles to obtain the lamellar catalyst Fe3O4-GO-Pd. The composition and structure were confirmed by XRD and SEM. The Heck reaction of bromobenzene and acrylic ester by the catalyst Fe3O4-GO-Pd were studied and the results showed that the yield can be 98.64% at 160℃ when performed with N,N-dimethylformamide (DMF) as solvent and it can still be 97.51% even after 4 recycling use. |
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