Improved Supercapacitive Performance of Pure Iron Oxide Electrode Through Cathodically Grown of Ultra-Fine Nanoparticles Publisher



Aghazadeh M¹ ; Karimzadeh I² ; Reza Ganjali M^{3, 4}
Source: Materials Letters Published:2017

Abstract

In this letter, Fe3O4 ultra-fine nanoparticles are prepared through PEG-assisted cathodic electrosynthesis from ethanol media. The XRD, FE-SEM, TEM and BET data confirmed the pure phase (i.e. magnetite), fine particle size (∼5 nm) and high surface (176.7 m2/g) of the electro-synthesized product. The electrochemical evaluations through cyclic voltammetry (CV) and continuous charge-discharge (GCD) techniques proved that the prepared Fe3O4 nanoparticles have excellent capacitive storage as high as 218.3 F g−1 and stable cycling performance of 4.7% decay after 2000 cycling at 0.5 A g−1. Furthermore, this work provides a facile electrochemical procedure to fabricate high performance iron oxide electrode for use in supercapacitors. © 2017 Elsevier B.V.