期刊
JOURNAL OF ADVANCED CERAMICS
卷 7, 期 3, 页码 246-255出版社
SPRINGEROPEN
DOI: 10.1007/s40145-018-0276-2
关键词
vanadium nitride (VN); mesoporous structure; nanofiber; supercapacitors (SCs); electrospinning
资金
- Young Elite Scientists Sponsorship Program by CAST [2017QNRC001]
- National Natural Science Foundation of China [51402116]
- Analytical and Testing Center of Huazhong University of Science and Technology
To promote the energy density of symmetric all-solid-state supercapacitors (SCs), efforts have been dedicated to searching for high-performance electrode materials recently. In this paper, vanadium nitride (VN) nanofibers with mesoporous structure have been fabricated by a facile electrospinning method. Their crystal structures and morphology features were characterized by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The mesoporous structure of VN nanofibers, which can provide short electrolyte diffusion routes and conducting electron transport pathways, is beneficial to their performance as a supercapacitor electrode. Under a stable electrochemical window of 1.0 V, VN nanofibers possess an excellent mass specific capacitance of 110.8 F/g at a scan rate of 5 mV/s. Moreover, the VN nanofibers were further assembled into symmetric all-solid-state SCs, achieving a high energy density of 0.89 mW.h/cm(3) and a high power density of 0.016 W/cm(3) over an operating potential range from 0 to 1.0 V. These results demonstrate that VN nanofibers could be potentially used for energy storage devices.
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