期刊
MATERIALS HORIZONS
卷 2, 期 2, 页码 237-244出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4mh00212a
关键词
-
资金
- SERC Public Sector Research Funding [1121202012]
- Agency for Science, Technology, and Research (A*STAR)
- MOE AcRF Tier 2 [ARC 26/13, MOE2013-T2-1-034]
- AcRF Tier 1 [RG 61/12, RGT18/13, RG5/13]
- Start-up Grant in Singapore [M4080865.070]
- National Research Foundation, Prime Minister's Office, Singapore
- Energy Research Institute @NTU (ERI@N)
Hydrogen molybdenum bronze (HMB) is electrochemically deposited as a homogeneous shell on VO2 nanoflakes grown on graphene foam (GF), forming a GF + VO2/HMB integrated electrode structure. Asymmetric supercapacitors based on the GF + VO2/HMB cathode and neutral electrolyte are assembled and show enhanced performance with weaker polarization, higher specific capacitance and better cycling life than the unmodified GF + VO2 electrode. Capacitances of 485 F g(-1) (2 A g(-1)) and 306 F g(-1) (32 A g(-1)) are obtained because of the exceptional 3D porous architecture and conductive network. In addition, the GF + VO2/HMB electrodes are also characterized as the cathode of lithiumion batteries. Very stable capacities at rates up to 30 degrees C are demonstrated for 500 cycles. This new type of shell material is expected to have its generic function in other metal oxide based nanostructures.
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