Jump to main content
Jump to site search


Facile synthesis of hierarchical CuS/CuSCN nanocomposite with advanced energy storage properties

Abstract

We introduce CuS/CuSCN nanocomposites as active materials in pseudocapacitors, in which the redox reactions of both CuS and CuSCN simultaneously contribute to energy storage. This nanocomposite is prepared using in situ methodology via facile, low-energy-consuming green nanochemistry. The CuS/CuSCN nanocomposites offer high capacitance compared to their individual constituents. CuS nanorods (~ 15 nm) are anchored on the surface of CuSCN nanosheets (~ 100 nm) and they interconnect the CuSCN nanosheets, producing mesoporous nanoclusters with a large surface area, thus improving the charge transfer efficiency. The CuS/CuSCN nanocomposites possess high electrical conductivity and strong redox reactivity, and in particular, the pseudocapacitor with the compositional ratio 1:1 exhibits the highest charge transfer efficiency. Consequently, the 1:1 CuS/CuSCN active material exhibits high energy density (approximately 63 Wh/kg) and high power density (1.9 kW/kg at 9.0 Wh/kg) as a single electrode. The highest specific capacitance is measured to be 1787.3 F/g in the single electrode. Furthermore, an aqueous asymmetric hybrid supercapacitor based on the CuS/CuSCN 1:1 // activated carbon (AC) shows an approximately four times increase in power density (7.9 kW/kg), compared to the single electrode.

Back to tab navigation

Supplementary files

Publication details

The article was received on 08 Jun 2018, accepted on 03 Aug 2018 and first published on 06 Aug 2018


Article type: Paper
DOI: 10.1039/C8NJ02843E
Citation: New J. Chem., 2018, Accepted Manuscript
  •   Request permissions

    Facile synthesis of hierarchical CuS/CuSCN nanocomposite with advanced energy storage properties

    Y. Y. Kannangara, P. P and J. Song, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C8NJ02843E

Search articles by author

Spotlight

Advertisements