Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/123597
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | VO₂ nanoflake arrays for supercapacitor and Li-ion battery electrodes: Performance enhancement by hydrogen molybdenum bronze as an efficient shell material |
Other Titles: | VO(2) nanoflake arrays for supercapacitor and Li-ion battery electrodes: Performance enhancement by hydrogen molybdenum bronze as an efficient shell material |
Author: | Xia, X. Chao, D. Ng, C.F. Lin, J. Fan, Z. Zhang, H. Shen, Z.X. Fan, H.J. |
Citation: | Materials horizons, 2015; 2(2):237-244 |
Publisher: | Royal Social of Chemistry |
Issue Date: | 2015 |
ISSN: | 2051-6347 2051-6355 |
Statement of Responsibility: | Xinhui Xia, Dongliang Chao, Chin Fan Ng, Jianyi Lin, Zhanxi Fan, Hua Zhang, Ze Xiang Shen and Hong Jin Fan |
Abstract: | 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 lithium ion batteries. Very stable capacities at rates up to 30 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. |
Rights: | This journal is © The Royal Society of Chemistry 2015. |
DOI: | 10.1039/c4mh00212a |
Published version: | http://dx.doi.org/10.1039/c4mh00212a |
Appears in Collections: | Aurora harvest 8 Chemical Engineering publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.