Two-Dimensional VO2 Mesoporous Microarrays for High-Performance Supercapacitor
| Autor: | Yuqi Fan, Delong Ouyang, Bao-Wen Li, Feng Dang, Zongming Ren |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Nanoscale Research Letters, Vol 13, Iss 1, Pp 1-8 (2018) |
| Druh dokumentu: | article |
| ISSN: | 1931-7573 1556-276X |
| DOI: | 10.1186/s11671-018-2557-7 |
| Popis: | Abstract Two-dimensional (2D) mesoporous VO2 microarrays have been prepared using an organic–inorganic liquid interface. The units of microarrays consist of needle-like VO2 particles with a mesoporous structure, in which crack-like pores with a pore size of about 2 nm and depth of 20–100 nm are distributed on the particle surface. The liquid interface acts as a template for the formation of the 2D microarrays, as identified from the kinetic observation. Due to the mesoporous structure of the units and high conductivity of the microarray, such 2D VO2 microarrays exhibit a high specific capacitance of 265 F/g at 1 A/g and excellent rate capability (182 F/g at 10 A/g) and cycling stability, suggesting the effect of unique microstructure for improving the electrochemical performance. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|
Full text from SpringerLink