Effect of Carbon Coating on the Physicochemical and Electrochemical Properties of Fe2O3 Nanoparticles for Anode Application in High Performance Lithium Ion Batteries

Effect of Carbon Coating on the Physicochemical and Electrochemical Properties of Fe2O3 Nanoparticles for Anode Application in High Performance Lithium Ion Batteries

TitleEffect of Carbon Coating on the Physicochemical and Electrochemical Properties of Fe2O3 Nanoparticles for Anode Application in High Performance Lithium Ion Batteries
Publication TypeJournal Article
Year of Publication2015
AuthorsAmaia Iturrondobeitia, Aintzane Goñi, I. Orue, Izaskun Gil de Muro, Luis Lezama, Marca M Doeff, Teófilo Rojo
JournalInorganic Chemistry
Volume54
5239
Issue11
Pagination5239–5248
Date Published05/2015
ISBN Number1520-510X (Electronic) 0020-1669 (Linking)
Accession Number25985317
Abstract

Nanoparticulate Fe2O3 and Fe2O3/C composites with different carbon proportions have been prepared for anode application in lithium ion batteries (LIBs). Morphological studies revealed that particles of Fe2O3 in the composites were well-dispersed in the matrix of amorphous carbon. The properties of the γ-Fe2O3 nanoparticles and the correlation with the particle size and connectivity were studied by electron paramagnetic resonance, magnetic, and Mössbauer measurements. The electrochemical study revealed that composites with carbon have promising electrochemical performances. These samples yielded specific discharge capacities of 1200 mAh/g after operating for 100 cycles at 1C. These excellent results could be explained by the homogeneity of particle size and structure as well as the uniform distribution of γ-Fe2O3 nanoparticles in the in situ generated amorphous carbon matrix.

DOI10.1021/acs.inorgchem.5b00203
Short TitleInorg Chem