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Intense pulsed light-assisted facile and agile fabrication of cobalt oxide/nickel cobaltite nanoflakes on nickel-foam for high performance supercapacitor applications.
- Source :
-
Journal of Alloys & Compounds . Jan2015, Vol. 618, p227-232. 6p. - Publication Year :
- 2015
-
Abstract
- We report an extremely efficient method for fabricating high-performance supercapacitive CoO/NiCo 2 O 4 nanoflakes on Ni-foam substrate by using intense pulsed light (IPL) technology. Structural and morphological characterization is carried out using X-ray diffraction (XRD) and scanning and transmission electron microscopies (SEM and TEM). These reveal that hierarchically structured CoO/NiCo 2 O 4 nanoflakes of 150–200 nm in size and a thickness around 10 nm are formed on Ni-foam substrate by IPL irradiation with energy of 20 J cm −2 for 15 ms. The electrochemical behavior of the composites is analyzed by cyclic voltammetry and galvanostatic charge–discharge experiments. The IPL-induced CoO/NiCo 2 O 4 /Ni-foam electrode exhibits a very high specific capacitance of 2163 Fg −1 at a discharge current density of 1 Ag −1 and a good rate performance of 908 Fg −1 even at 50 Ag −1 . [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09258388
- Volume :
- 618
- Database :
- Academic Search Index
- Journal :
- Journal of Alloys & Compounds
- Publication Type :
- Academic Journal
- Accession number :
- 98807348
- Full Text :
- https://doi.org/10.1016/j.jallcom.2014.08.166