Effect of Fe2O3 Morphology on the Electrochemical Properties of Fe2O3/C Composite Electrode as Fe-Air Battery Anode
In order to identify the most suitable material for the Fe/air battery anode, two kinds of material, highly relative homogeneous Fe2O3 microparticles with mainly rhombohedral and polyhedral-like shapes and grain size of 1–10 μm were used as negative
materials in Fe/air batteries. The effects of shape, morphology and particle size of α-Fe2O3 on the electrochemical properties of both materials were investigated with the use of X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron
microscopy (SEM) along with X-ray energy-dispersive spectroscopy (EDS), cyclic voltammetry (CV) and galvanostatic cycling performance. The results revealed that the prepared α-Fe2O3 microparticles provided the better cyclability than commercial one and the
rhombohedral-like Fe2O3 delivered higher capacity than polyhedral like one. The prepared α-Fe2O3 with mainly rhombohedral-like shape is a promising material for the Fe/air-battery anode.
Keywords: Fe/Air Battery Anode; Fe2O3 Microparticles; Fe2O3/C Composite Electrode; Polyhedral-Like Shape; Rhombohedral-Like Shape
Document Type: Research Article
Affiliations: 1: International Training Institute for Materials Science, Hanoi University of Science and Technology, No. 1, Dai Co Viet, Hai Ba Trung, Hanoi, 100000, Vietnam 2: Department of High Technology, Ministry of Science and Technology, 113 Tran Duy Hung, Hanoi, 100000, Vietnam
Publication date: 01 August 2016
- Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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