Nanostructured Co^sub 3^O^sub 4^/nitrogen doped carbon nanotube composites for high-performance supercapacitors
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 w...
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| Veröffentlicht in: | Materials letters 2017-11, Vol.206, p.39 |
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| creator | Ramesh, Sivalingam Haldorai, Yuvaraj Sivasamy, Arumugam Heung, Kim Soo |
| description | 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. |
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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). 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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.</abstract><cop>Amsterdam</cop><pub>Elsevier BV</pub></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Ammonia Capacitance Chemical compounds Cobalt oxides Decomposition Electron microscopy Materials science Multi wall carbon nanotubes Nanoparticles Nanostructure Nanotubes Nitrogen Potassium hydroxides Supercapacitors Thermal decomposition Transmission electron microscopy |
| title | Nanostructured Co^sub 3^O^sub 4^/nitrogen doped carbon nanotube composites for high-performance supercapacitors |
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