Dyah, Purwaningsih and Hari, Sutrisno and Dewi Yuanita, Lestari (2014) EFFECTS OF CALCINATION TEMPERATURES ON SYNTHESIS OF LiMn2O4 BY POLYMER MATRIX-BASED ALKALINE DEPOSITION METHOD. Proceeding of International Conference On Research, Implementation And Education Of Mathematics And Sciences 2014. (Submitted)
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Abstract
LiMn2O4 offers more affordable price than other cathode materials for lithium ion batteries. The other factors are the abundance of the Mn element in nature and its low level of toxicity. Therefore, this study aims to investigate the effects of calcination temperature on the synthesis of LiMn2O4to obtain better condition for calcination to produce LiMn2O4. In this study, cubic LiMn2O4 is synthesized by Polymer Matrix Deposition Method using hydrothermal technique. Precursors used were LiOH, ethylene glycol and Mn(CH3COO)2. The precursors were synthesized at 150oC for 6 hours and calcined for 4 hours in different temperature variations in order to produce crystals with different sizes and crystalinity. The interval calcination temperature is 500-900oC. The compound was characterized by XRD, TEM and then was analyzed by U-Fit program. It is found that at low calcination temperatures, impurities MnO2 is present but it decreases along with the increase of calcination temperature. The lattice parameters and volume of LiMn2O4also increase with the increase in heating temperature.The optimum calcination temperature is 700oC.
| Item Type: | Article |
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| Uncontrolled Keywords: | LiMn2O4, polymer matrix-based alkaline deposition method, calcination temperature |
| Subjects: | Prosiding > ICRIEMS 2014 > CHEMISTRY & CHEMISTRY EDUCATION |
| Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) > Jurusan Pendidikan Kimia > Kimia |
| Depositing User: | Eprints |
| Date Deposited: | 06 Nov 2014 02:33 |
| Last Modified: | 06 Nov 2014 02:33 |
| URI: | http://eprints.uny.ac.id/id/eprint/11349 |
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