Intense Pulsed Light-assisted Facile and Agile Fabrication of Cobalt Oxide/Nickel Cobaltite Nanoflakes on Nickel-Foam for High Performance Supercapacitor
- Title
- Intense Pulsed Light-assisted Facile and Agile Fabrication of Cobalt Oxide/Nickel Cobaltite Nanoflakes on Nickel-Foam for High Performance Supercapacitor
- Author
- 김학성
- Keywords
- Supercapacitors; Metal oxide; Intense pulsed light; Nanoflake
- Issue Date
- 2015-01
- Publisher
- ELSEVIER SCIENCE SA
- Citation
- JOURNAL OF ALLOYS AND COMPOUNDS, v. 618, Page. 227-232
- Abstract
- We report an extremely efficient method for fabricating high-performance supercapacitive CoO/NiCo2O4 nanoflakes on Ni-foam substrate by using intense pulsed light (IPL) technology. Structural and morpho- logical characterization is carried out using X-ray diffraction (XRD) and scanning and transmission elec- tron microscopies (SEM and TEM). These reveal that hierarchically structured CoO/NiCo2O4 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 cm2 for 15 ms. The electrochemical behavior of the composites is analyzed by cyclic voltammetry and galvanostatic charge–discharge experiments. The IPL-induced CoO/NiCo2O4/Ni-foam electrode exhibits a very high specific capacitance of 2163Fg1 at a discharge current density of 1 Ag1 and a good rate performance of 908 Fg1 even at 50 Ag1.
- URI
- http://hdl.handle.net/20.500.11754/21356http://www.sciencedirect.com/science/article/pii/S0925838814020325
- ISSN
- 0925-8388
- DOI
- 10.1016/j.jallcom.2014.08.166
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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