Journal
MATERIALS LETTERS
Volume 206, Issue -, Pages 39-43Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2017.06.110
Keywords
N-doped MWCNT; Cobalt oxide; Composite; Supercapacitors
Funding
- National Research Foundation of Korea - Ministry of Education [NRF-2017R1D1A1B03028368]
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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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