[Co(salen)] derived Co/Co3O4 nanoparticle@carbon matrix as highperformance electrode for energy storage applications.
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
View Archive Info| Field | Value | |
| Title |
[Co(salen)] derived Co/Co3O4 nanoparticle@carbon matrix as highperformance electrode for energy storage applications.
|
|
| Creator |
Duraisamy, E.
Gurunathan, P. Das, Himadri T. Ramesha, K. Elumalai, P. |
|
| Subject |
Electrochemical Power Sources
|
|
| Description |
Cobalt/cobalt oxide nanoparticle-embedded in a carbon matrix was synthesized by one spot pyrolysis of
cobalt salen complex [Co(salen)] at 800 �C in an argon atmosphere. The X-ray diffraction studies
confirmed the presence of Co and Co3O4 in the carbon matrix. The SEM and TEM observations showed
the homogeneous distribution of the Co/Co3O4 grains on the carbon matrix. Cyclic voltammograms and
galvanostatic charge-discharge studies done on the CR2032 coin cell confirmed that the Co/Co3O4@-
carbon matrix was electrochemically active. A stable specific capacity as high as 1000 mA h g�1 has been
observed over 50 charge-discharge cycles at C/5 rate. It is believed that the carbon matrix acted both as a
spacer to accommodate volume changes during Li intercalation-deintercalation process and also as
conductive network leading to the excellent electrochemical performance of the Co/Co3O4@carbon
matrix. Further, supercapacitor studies revealed that a specific capacitance of 615 F g�1 at 1 A g�1 has
been exhibited by the Co/Co3O4@carbon matrix electrode in 1 M KOH with high Coulombic efficiency
(92%) as well as excellent cycling stability for 5000 cycles.
|
|
| Publisher |
Elsevier B.V.
|
|
| Date |
2017-02-01
|
|
| Type |
Article
PeerReviewed |
|
| Format |
application/pdf
|
|
| Identifier |
http://cecri.csircentral.net/3212/1/124-2017.pdf
Duraisamy, E. and Gurunathan, P. and Das, Himadri T. and Ramesha, K. and Elumalai, P. (2017) [Co(salen)] derived Co/Co3O4 nanoparticle@carbon matrix as highperformance electrode for energy storage applications. Journal of Power Sources, 344. pp. 103-110. ISSN 0378-7753 |
|
| Relation |
http://www.elsevier.com/locate/jpowsour
http://cecri.csircentral.net/3212/ |
|