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Polymers and Polymer Composites

Facile synthesis of core-shell structured CuS@PANI microspheres and electrochemical capacitance investigations

June 1, 2017 By: Chunnian Chen; Qi Zhang; Chengyang Peng Research article

Title: Facile synthesis of core-shell structured CuS@PANI microspheres and electrochemical capacitance investigations
Page Range: p.483-488
Author(s): Chunnian Chen; Qi Zhang; Chengyang Peng
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 25
Issue No: No.6

Abstract
A core-shelled structure CuS@PANI composite microsphere was successfully synthesised via chemical oxidative polymerisation procedure and the electrochemical performance was investigated. The as-prepared composites were characterised by FE-SEM, TEM and XRD, and their particulate structure has been confirmed. Interestingly, the CuS microsphere was not a whole solid but composed of several sheet-like subunits, and the PANI was loosely-coated on the surface of spherical CuS particles. The advantage of this kind of core-shell structure is that PANI has better conductivity, which favours the electronic conductive channels to the CuS cores. Moreover, the loosely-attached PANI could buffer the disadvantages of the volume changes of CuS during the charge-discharge process. The galvanostatic charge/discharge profile shows a specific capacitance of 308.1 F g-1 at a current density of 0.5 A g-1 and the composite retained 71.6% of its initial capacitance after 1000 cycles at a current density of 1 A g-1. 19 Refs.

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