Accession Number:

ADA621791

Title:

Studies on High Energy Density Reactions for Development of Nanostructured Hybrid Supercapacitors

Descriptive Note:

Final rept. 28 Aug 2012-27 Feb 2015

Corporate Author:

MUMBAI UNIV (INDIA)

Report Date:

2015-09-25

Pagination or Media Count:

15.0

Abstract:

Nanocomposites of graphene or graphene oxide and either metal nanoparticles or macroporous copper oxides macroCuO were synthesized and their electrochemical properties and possible applications investigated. MacroCuO with graphene was successfully used as supercapacitor electrode material. Electrochemical measurements of this system revealed the maximum specific capacitance, energy density and power density of 417 F gexpn 1, 58 Wh kgexpn 1 and17.85 kWkg expn -1, respectively at a current density of 0.9 Agexpn -1. Graphenesilver nanoparticlepolypyrole modified glassy carbon electrode Gr-AgNPs-PPy-GCE was synthesized and its use as a supercapacitor electrode is under investigation. Graphene Gr- gold nanoparticles AuNP-Nafion and silver nanoparticle AgNPgraphene oxide GO composites have been successfully synthesized and characterized. These materials were investigated as supercapacitor electrodes with different electrolytes. AuNP-Nafion was found to be useful for sensing the pharmaceutical molecule Sumatriptan, and AgNPGO shows high sensitivity in detection of Arsenic.

Subject Categories:

  • Physical Chemistry
  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE