期刊
ADVANCED FUNCTIONAL MATERIALS
卷 30, 期 39, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.202002580
关键词
abundant active sites; energy density; energy-storage devices; interconnected micropores; substantial accommodation
类别
资金
- National Natural Science Foundation of China [51977185, 51972277, 51602265]
- Sichuan Science and Technology Program [2018RZ0074]
- Cultivation Program for the Excellent Doctoral Dissertation of Southwest Jiaotong University [D-YB201709]
Renewable and environmentally friendly biomass-based carbon electrode materials naturally possess fast ion transport, high adsorption, and excellent chemical stability for high-performance energy-storage devices. However, intelligently building the effectively biomass-transferred carbon materials for the requirement of high energy density is still a big challenge to date. Here, a hierarchically divacancy defect building platform is reported for effectively biomass-transferred and highly interconnected 3D dual-activated porous carbon fibers (DACFs) based on the internal-external dual-activation function of the pre-embedded KOH and CO(2)molecular. This uniquely interconnected frameworks not only fully provide the abundant active sites for ion interaction, but also efficiently guarantee the substantial accommodation for ion storage. Based on this, the as-prepared DACFs-based supercapacitors deliver a high energy density of 61.3 Wh kg(-1)at a power density of 875 W kg(-1)in the EMIMBF(4)ionic liquid. This work not only provides a simple and efficient technique to enhance the energy density of carbon materials, but also probably promotes its additional application in environmental remediation.
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