Paper Title:
Effect of Further Calcination on the Phase Structure of LiMn2O4 Prepared by a Solution Combustion Synthesis
  Abstract

In this paper, LiMn2O4 materials were prepared by a solution combustion synthesis method using acetate salts as raw materials and acetic acid as fuel. The effect of further calcination at 500°C and 600°C on the phase structure and composition were investigated. The composition and phase structure are determined by X-ray diffraction (XRD). XRD results indicated that the main phase of the products was LiMn2O4, and there was a trace amount Mn2O3 impurity in the products prepared at 500°C and 600°C. The impurity Mn2O3 in the products prepared at 500°C is increased with increasing calcination time, but the Mn2O3 in the products prepared at 600°C is decreased. The grain sizes of the products prepared at 500°C and 600°C are increased with increasing calcination time, and the grain sizes of the products prepared at 600°C are larger than these of the products prepared at 500°C. The lattice parameters of the products prepared at 500°C and 600°C are smaller than that of LiMn2O4 with perfect crystal, and the lattice parameters of the products are more close to that of LiMn2O4 with perfect crystal.

  Info
Periodical
Edited by
Honghua Tan
Pages
768-771
DOI
10.4028/www.scientific.net/AMM.66-68.768
Citation
G. Y. Liu, J. M. Guo, B. S. Wang, Y. He, "Effect of Further Calcination on the Phase Structure of LiMn2O4 Prepared by a Solution Combustion Synthesis", Applied Mechanics and Materials, Vols. 66-68, pp. 768-771, 2011
Online since
July 2011
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