摘要
用水合肼还原Pd2＋并将其负载在MOF-5上,制得了新型的Pd/MOF-5催化剂,采用XRD、氮吸附、SEM、TEM等多种手段对其进行了表征,催化剂的Pd纳米粒子尺寸在3~6nm之间。初步研究了该催化剂对催化卤代芳烃与芳基硼酸之间的Suzuki-Miyaura偶联反应的反应条件和催化性能,该催化体系具有反应条件温和、无需氮气保护和添加配体、产率优良等优点,催化剂循环利用5次仍然保持较高催化活性,平均产率超过90%。
A novel palladium heterogeneous catalyst,Pd/MOF-5,was prepared by supporting palladium nanoparticles on metal organic frameworks MOF-5.The microstructure and features of the catalyst were characterized by XRD,SEM,TEM,and N2-adsorption respectively.Electron microscopy reveals that the Pd nanoparticles on Pd/MOF-5 range from 3 nm to 6 nm.The catalytic performance for Suzuki reaction between phenylboronic acids and haloarenes was investigated.The results show that the Pd/MOF-5 has a high catalytic activity for the synthesis of substituted biphenyls under room temperature in air.The average yield of biphenyls within 5 times＇ reuse is over 90%.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2010年第7期1213-1217,共5页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金(No.20951001)
南京大学配位化学国家重点实验室开放基金
国家大学生创新性实验计划(ITP,No.081024828)资助项目
