Synthesis of Spinel Phase <TEX>${LiMn_2}{O_4}$</TEX> and its Activation by Hydrogen Reduction

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J. Korean Ceram. Soc. > Volume 37(6); 2000 > Article

Journal of the Korean Ceramic Society 2000;37(6): 564.

스피넬상 ${LiMn_2}{O_4}$의 합성과 수소환원에 의한 활성화

이동석, 류대선, 임병오, 이풍헌¹

홍익대학교 공과대학 화학공학과
¹홍익대학교 과학기술대학 세라믹공학과

Synthesis of Spinel Phase ${LiMn_2}{O_4}$ and its Activation by Hydrogen Reduction

ABSTRACT

Spinel LiMn2O4 catalyst with submicron and single phase particles was synthesized at 48$0^{circ}C$ for 12 hr in air by a sol-gel method. The spinel LiMn2O4 was deoxidized by hydrogen at various temperatures. Effects of physiochemical properties of the catalyst reduced by hydrogen were examined with X-ray diffractometer, thermogravimetric analysis and scanning electron microscope. The decomposition rate of carbon dioxide was measrued using the catalyst deosidized at 35$0^{circ}C$.

Key words: Sol-Gel method, ${LiMn_2}{O_4}$, Hydrogen reduction, Carbon dioxide