期刊
ACS NANO
卷 8, 期 7, 页码 7279-7287出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn502341x
关键词
heterogeneous structure; nanotube; lithium-ion battery; supercapacitor; multifunctional
类别
资金
- Smalley Institute for Nanoscale Science and Technology
- ONR MURI Program [00006766, N00014-09-1-1066]
- AFOSR MURI program [FA9550-12-1-0035]
- AFOSR [FA9550-09-1-0581]
Three-dimensional heterogeneously nanostructured thin-film electrodes were fabricated by using Ta2O5 nanotubes as a framework to support carbon-onion-coated Fe2O3 nanoparticles along the surface of the nanotubes. Carbon onion layers function as microelectrodes to separate the two different metal oxides and form a nanoscale 3-D sandwich structure. In this way, space-charge layers were formed at the phase boundaries, and it provides additional energy storage by charge separation. These 3-D nanostructured thin films deliver both excellent U-ion battery properties (stabilized at 800 mAh cm(-3)) and supercapacitor (up to 18.2 mF cm(-2)) performance owing to the synergistic effects of the heterogeneous structure. Thus, Li-ion batteries and supercapacitors are successfully assembled into the same electrode, which is promising for next generation hybrid energy storage and delivery 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