Carbon nanospheres with well-controlled nano-morphologies as support for palladium-catalyzed Suzuki coupling reaction
Carbon nanospheres with well-controlled nano-morphologies as support for palladium-catalyzed Suzuki coupling reaction
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具有良好控制的纳米形貌的碳纳米球作为钯催化铃木偶联反应的支持
DOI：
10.1002/aoc.3741
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发表时间：
2017
影响因子：
3.9
通讯作者：
Zhi Wang
中科院分区：
文献类型：
--
作者：
Wenhuan Dong;Saisai Cheng;Cheng Feng;Ningzhao Shang;Shutao Gao;Chun Wang;Zhi Wang
在聚苯乙烯磺酸盐存在下，通过蔗糖的水热碳化制备了具有良好控制的纳米形态的均匀碳纳米球（UCS）。通过使用 NaBH4 作为还原剂的简单共还原过程，将高度分散的超细钯纳米颗粒负载在 UCS 上。所得的Pd@UCS对Suzuki偶联反应表现出高效的催化活性。此外，所制备的催化剂可以回收和重复使用至少五次，而不会显着损失其催化活性。
Uniform carbon nanospheres (UCS) with well‐controlled nano‐morphologies were fabricated by hydrothermal carbonization of sucrose in the presence of kayexalate. Highly dispersed and ultrafine palladium nanoparticles were supported on the UCS through a facile co‐reduction process with NaBH4as reducing agent. The obtained Pd@UCS exhibited efficient catalytic activity for the Suzuki coupling reaction. Moreover, the as‐prepared catalyst could be recycled and reused at least five times without significant loss of its catalytic activity.