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Nanostructured Co3O4/nitrogen doped carbon nanotube composites for high-performance supercapacitors
- Issue Date
- 1-Nov-2017
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- N-doped MWCNT; Cobalt oxide; Composite; Supercapacitors
- Citation
- MATERIALS LETTERS, v.206, pp 39 - 43
- Pages
- 5
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- MATERIALS LETTERS
- Volume
- 206
- Start Page
- 39
- End Page
- 43
- ISSN
- 0167-577X
1873-4979
- Abstract
- In this study, a nanostructured cobalt oxide/nitrogen doped multiwall carbon nanotube (N-MWCNT/Co3O4) composite was synthesized by thermal decomposition process in the presence of aqueous ammonia and urea. Transmission electron microscopy (TEM) confirmed that the nanostructured Co3O4 nanoparticles were densely decorated over the N-MWCNT surface. The supercapacitive properties of the composite electrode were studied in aqueous potassium hydroxide (KOH). The composite showed high specific capacitance (406 F g(-1) at a current density of 2 A g(-1)) and excellent cycle stability (93% capacitance retention after 10,000 cycles), demonstrating its potential application in high-performance supercapacitors. (C) 2017 Elsevier B.V. All rights reserved.
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Related Researcher
- Kim, Heung Soo
- College of Engineering (Department of Mechanical, Robotics and Energy Engineering)