• Vol 7, No 3 (2016)
  • Metalurgy and Material Engineering

Synthesis of Lithium Titanate (Li4Ti5O12) by Addition of Excess Lithium Carbonate (Li2CO3) in Titanium Dioxide (TiO2) Xerogel

Anne Zulfia Syahrial, Bambang Priyono, Akhmad Herman Yuwono , Evvy Kartini, Heri Jodi, Johansyah

Corresponding email: bambang.priyono@ui.ac.id


Published at : 29 Apr 2016
IJtech : IJtech Vol 7, No 3 (2016)
DOI : https://doi.org/10.14716/ijtech.v7i3.2890

Cite this article as:

Syahrial, A.Z., Priyono, B., Yuwono, A.H., Kartini, E., Jodi, H., Johansyah., 2016. Synthesis of Lithium Titanate (Li4Ti5O12) by Addition of Excess Lithium Carbonate (Li2CO3) in Titanium Dioxide (TiO2) Xerogel. International Journal of Technology. Volume 7(3), pp.392-400

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Anne Zulfia Syahrial Department of Metallurgy and Materials Engineering, Faculty of Engineering, Universitas Indonesia, Kampus UI Depok, Depok 16424, Indonesia
Bambang Priyono Department of Metallurgy and Materials Engineering, Faculty of Engineering, Universitas Indonesia, Kampus UI Depok, Depok 16424, Indonesia
Akhmad Herman Yuwono Department of Metallurgy and Materials Engineering, Faculty of Engineering, Universitas Indonesia, Kampus UI Depok, Depok 16424, Indonesia
Evvy Kartini Center for Science and Technology of Advanced Materials, BATAN, Puspitek Serpong, Indonesia
Heri Jodi Center for Science and Technology of Advanced Materials, BATAN, Puspitek Serpong, Indonesia
Johansyah Department of Metallurgy and Materials Engineering, Faculty of Engineering, Universitas Indonesia, Kampus UI Depok, Depok 16424, Indonesia
Email to Corresponding Author

Abstract
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Lithium titanate, Li4Ti5O12 (LTO) is a promising candidate as lithium ion battery anode material. In this investigation, LTO was synthesized by a solid state method using TiO2 xerogel prepared by the sol-gel method and lithium carbonate (Li2CO3). Three variations of Li2CO3 content addition in mol% or Li2CO3 molar excess were fabricated, i.e., 0, 50 and 100%, labelled as sample LTO-1, LTO-2 and LTO-3, respectively. The characterizations were made using XRD, FESEM, and BET testing. These were performed to observe the effect of lithium excess addition on structure, morphology, and surface area of the resulting samples. Results showed that the crystallite size and surface area of each sample was 50.80 nm, 17.86 m2/gr for LTO-1; 53.14 nm, 22.53 m2/gr for LTO-2; and 38.09 nm, 16.80 m2/gr for LTO-3. Furthermore, lithium excess caused the formation of impure compound Li2TiO3, while a very small amount of rutile TiO2 was found in LTO-1. A near-pure crystalline Li4Ti5O12 compound was successfully synthesized using the present method with stoichiometric composition with 0% excess, indicating very little Li+ loss during the sintering process.

Excess lithium carbonat, Lithium titanate (Li4Ti5O12), Sintering, Solid-state, Xerogel

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