期刊
ENERGY STORAGE MATERIALS
卷 10, 期 -, 页码 75-84出版社
ELSEVIER
DOI: 10.1016/j.ensm.2017.08.009
关键词
ZnO@ZIF-8; Nitrogen doping; Reduction/evaporation; Hierarchically porous carbon arrays; Flexible supercapacitor
资金
- Fundamental Research Funds for the Central Universities [531107040992]
- National Natural Science Foundation of China [11274107, 61204109, 11574078]
- Foundation for the authors of National Excellent Doctoral Dissertation of China [201318]
- Natural Science Foundation of Hunan Province [2015JJ1008, 2015RS4024]
N-doped carbon bubbles homogenously dispersed on highly conductive carbon tube arrays scaffold are derived from ZnO@ZIF-8 nanoarrays template through in situ catalytic decomposition of ethanol and reduction-evaporation process. The as-obtained hierarchical carbon tube connected N-doped carbon bubbles arrays possess well interconnected micro-/mesopores and large specific surface area, which are expected to improve both the specific capacitance and rate capability of carbon- based electrochemical capacitors. The hierarchical porous N-doped carbon nanostructures yield a remarkable rate capability with 56.8% capacitance retention when the current density ranges from 1 to 200 mA cm(-2), and an excellent long-term cycle stability with 98.5% capacitance retention after 10,000 continuous cycles in 1 M H2SO4 aqueous solution under three-electrode mode. The symmetric supercapacitor delivers an areal capacitance of 580 mF cm(-2) at 1 mA cm(-2). Furthermore, the assembled symmetric device validates excellent mechanical stability and flexibility.
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