易丝帮
易丝帮首页 > 文献资料 > ES-Bank > 正文

Carbon Nanofibers Supported Ultra-Small Palladium Oxide Nanoclusters as an Efficient and Continuable Catalyst for Suzuki Coupling Reaction

2019/1/9 9:48:25

author:Bao, G. Y., et al.

journal:Catalysis Letters

volume:148

Issue:11

This work reports a very facile method to fabricate ultra-small PdO nanoclusters supported on carbon nanofibers (CNFs) which performed outstanding catalytic activity for Suzuki coupling reaction under the mild reaction conditions. The catalyst developed in this paper showed several advantages compared with our group previous jobs, such as simpler procedure to prepare the catalyst, lower active species loading and higher performance in Suzuki coupling reactions. Importantly, the catalyst could be recycled at least up to ten times and without any loss in activity. The reaction mechanism in this system was also explored by our group.Graphical AbstractUltra-small palladium oxide nanoclusters supported on carbon nanofibers (PdO@CNFs) were successfully obtained through the facile process of electrospinning technology and high-temperature carbonization. The fabricated composite catalyst exhibited a better catalytic activity for Suzuki coupling reaction under mild conditions, especially in recycle ability (at least ten times). According to the experiment results, a plausible reaction mechanism was proposed by our group. We had an idea that the active species was palladium oxide, and the first step involved the reaction between bromobenzene and palladium oxide nanoclusters generated organo-oxopalladium species. This step was a rate-determining step and slightly different from the traditional mechanism. [GRAPHICS] .

ISSN :1011-372X

DOI :10.1007/s10562-018-2527-9

Year:2018

我来说两句 邀请点评 全部 0 条

关于我们 | 加入我们 | 网站声明 | 网站导航 | 友情链接 | 联系我们
Copyright © www.espun.cn 易丝帮 版权所有 备案号京ICP备13046089
未经书面授权,所有页面内容不得以任何形式进行复制