期刊
JOURNAL OF CATALYSIS
卷 362, 期 -, 页码 1-9出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2018.03.021
关键词
Covalent triazine framework; Carbazole; Oxygen reduction reaction; CO2 chemical fixation
资金
- National Science Foundation of China [21674129, 21376272, 21636010]
- Hunan Provincial Science and Technology Plan Project, China [2016TP1007]
- State Key Laboratory of Fine Chemicals [KF1604]
- Central South University [2018CX046]
- Hunan Provincial Natural Science Foundation [2015JJ5010]
- Zhuzhou Municipal Government of China [2015JJ5010]
Task-specific carbazole-based covalent triazine frameworks (CTF-CSUs) have been designed and prepared. The obtained materials could serve as excellent catalysts for both CO2 chemical fixation and oxygen reduction reaction (ORR). Results shown that using CTF-CSUs as catalysts, the cycloaddition reactions between CO2 and epoxides were readily achieved with extremely high yields (99%) under mild conditions (0.1 MPa, 25 degrees C). The catalysts could be reused for five times without any obvious loss of catalytic activity. In addition, the as-made carbazole-containing CTFs catalysts delivered attractive ORR activity, superior durability and methanol tolerance relative to commercially available Pt/C reference electrocatalyst (E-TEK). Rich N contents (15.33 wt%) and large surface areas (982 m(2) g(-1)) combining abundant mesopores favor a combination of two-electron and four-electron reduction pathway under alkaline condition. All these attracting characteristics were attributed to their unique structures and strong synergistic effect between carbazole and triazine moieties. (C) 2018 Elsevier Inc. All rights reserved.
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