期刊
ADVANCED FUNCTIONAL MATERIALS
卷 26, 期 19, 页码 3340-3348出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201505533
关键词
-
类别
资金
- National Natural Science Foundation of China
- National Basic Research Program of China [2011CBA00503, 2011CB932403]
- Program for Changjiang Scholars and Innovative Research Team in the University
- NSF [CMMI-1400274, CMMI-1266295]
Polymers are important precursors for the fabrication of carbon materials. Herein, halogenated polymers are explored as precursors for the synthesis of high-quality carbon materials via alkaline dehalogenation. It is found that the halogen elements (F, Cl) connecting to vinylidene units are highly reactive so that dehalogenation can take place a few seconds at room temperature by simple hand grinding in the presence of strong inorganic alkaline. Furthermore, the halogen element-leaving sites are shown to be susceptible to heteroatom doping (e.g., N doping) to become stable capacitive sites for charge storage (e.g., ions). By using a mixture of NaOEt and KOH as dehalogenation reagents, abundant hierarchical pores (macro/meso/micropores) in the resultant doped carbon matrix for fast mass transportation can be created. Very high capacitance (328 F g(-1) at 0.5 A g(-1)) and rate capability (75.3% retention at 50 A g(-1) and 62.5% retention at 100 A g(-1)) are observed for the newly developed halogenated polymer-derived doped carbon materials.
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