Ultra high supercapacitance of ultra small Co3O4 nanocubes

Monalisa Pal, Rupali Rakshit, Ashutosh Kumar Singh and Kalyan Mandal

Energy, 2016, vol. 103, issue C, 481-486

Abstract: Co3O4 based nanostructures have attracted enormous attention due to their exceptional electrochemical activities. However the multistep rigorous fabrication processes restrict their direct application in practical supercapacitor devices. Herein, we demonstrate growth of self supported ultra small Co3O4 NCs (nanocubes) array directly over Ni foam by facile, quick, one step solvothermal method. Impressively, the as-prepared Co3O4 NCs exhibit noticeable pseudocapacitive performance with ultra high specific capacitance of 1913 F g−1 at current density of 8 A g−1, high rate capability, as well as good cycling stability. Enhanced supercapacitance can be attributed to very small size of NCs with nanopores, leading to greater interaction of electrolyte and active material. The remarkable electrochemical performance of Co3O4 NCs electrode exhibits its potential as an alternative electrode for forthcoming supercapacitor devices.

Keywords: Co3O4 nanocubes; Solvothermal process; Energy storage; Ni foam; Supercapacitance (search for similar items in EconPapers)
Date: 2016
References: Add references at CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544216302018
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:103:y:2016:i:c:p:481-486

DOI: 10.1016/j.energy.2016.02.139

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().