期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 140, 期 4, 页码 1423-1427出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.7b11255
关键词
-
资金
- German Science Foundation [TH1463/15-1]
- Cluster of Excellence UniCat
- Alexander von Humboldt foundation
Covalent organic frameworks (COFs) are crystalline, highly porous, two- or three-dimensional polymers with tunable topology and functionalities. Because of their higher chemical stabilities in comparison to their boron-linked counterparts, imine or beta-ketoenamine linked COFs have been utilized for a broad range of applications, including gas storage, heterogeneous catalysis, energy storage devices, or proton-conductive membranes. Herein, we report the synthesis of highly porous and chemically stable acetylene (-C equivalent to C-) and diacetylene (-C equivalent to C-C equivalent to C-) functionalized beta-ketoenamine COFs, which have been applied as photocatalyst for hydrogen generation from water. It is shown that the diacetylene moieties have a profound effect as the diacetylene-based COF largely outperforms the acetylene-based COF in terms of photocatalytic activity. As a combined effect of high porosity, easily accessible diacetylene (-C equivalent to C-C equivalent to C-) functionalities and considerable chemical stability, an efficient and recyclable heterogeneous photocatalytic hydrogen generation is achieved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据