Fabrication of Te@Pd Core鈥揝hell Hybrids for Efficient C鈥揅 Coupling Reactions
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- 作者：Yuewu Zhao ; Huile Jin ; Huan Zhou ; Juanjuan Lin ; Shun Wang ; Jichang Wang
- 刊名：The Journal of Physical Chemistry C
- 出版年：2012
- 出版时间：April 5, 2012
- 年：2012
- 卷：116
- 期：13
- 页码：7416-7420
- 全文大小：285K
- 年卷期：v.116,no.13(April 5, 2012)
- ISSN：1932-7455
文摘
Te@Pd core鈥搒hell hybrids were prepared in this study, in which a pine leaf-shaped microstructure was obtained through controlling the synthesis kinetics of single crystal Te. The as-prepared Te was subsequently utilized as the substrate for Pd coating. These core鈥搒hell particles were characterized with scanning and transmission electron microscopy, high resolution transmission electron microscopy, X-ray diffraction, and energy dispersive X-ray spectroscopy. When being applied as a catalyst in bromobenzene and phenylboronic acid reaction, 100% conversion of bromobenzene was achieved in less than 3 h, which was much shorter than that required by the reactions using graphene oxide supported Pd catalyst (4 h) or the commercial Pd/C catalyst (>6 h). The Te@Pd core鈥搒hell catalyst could be easily recovered from the reaction solution and be used repeatedly. The high catalytic activity of Te@Pd hybrids is attributed to their unique microstructure.