Flexible iron-doped Sr(OH)2 fibre wrapped tuberose for high-performance supercapacitor electrode

The fiber wrapped tuberose structured Fe:Sr(OH)(2) have been successfully deposited by using a simple and low cost chemical approach of successive ion layer adsorption and reaction (SILAR) method as binder-free electrodes for supercapacitors. The structural properties have been obtained by the XRD patterns, while FTIR shows the chemical bond analysis. The FE-SEM micrographs show fiber wrapped tuberose structured morphology and the Fe doping into Sr(OH)(2) is confirmed by EDX. The deposited films show the battery type electrode behaviour in 1 M Na2SO4 aqueous solution. As an active electrode material, the specific capacity of 871 C g(-1) (specific capacitance of 792 F g(-1)) at 1.2 mA cm(-2) with cycle retention of similar to 79% at 5 mA cm(-2) has been obtained for 0.5 at.% Fe:Sr(OH)(2). The electrochemical properties of the synthesised electrode reveal that it has the great potential for next-generation energy storage applications. (C) 2018 Elsevier B.V. All rights reserved.