Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Synthesis of Spinel Phase Manganese Oxide and Its Activation by Hydrogen Reduction

망간산화물의 합성과 수소환원에 의한 활성화

  • Yang, Chun-Mo (Dept. of Chemical Engineering. Hong-Ik University) ;
  • Kim, Soon-Tae (Dept. of Chemical System Engineering. Hong-Ik University) ;
  • Rim, Byung-O (Dept. of Chemical Engineering. Hong-Ik University)
  • 양천모 (홍익대학교 공과대학 화학공학과) ;
  • 김순태 (홍익대학교 과학기술대학 화학시스템공학과) ;
  • 임병오 (홍익대학교 공과대학 화학공학과)
  • Published : 2000.03.31
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Abstract

For decompose carbon dioxide, manganese oxide was synthesized with $0.25M-MnSO_{4}{\cdot}nH_{2}O$ and 0.5M-NaOH by coprecipitation. We made magnetite deoxidized manganese oxide by hydrogen reduction for 1hour at $330^{\circ}C$. We investigated characteristics of catalyst, hydrogen reduction degree and decomposition rate of carbon dioxide. The structure of the hausmannite certified spinel type. The specific surface area of synthesized hausmannite and deoxidized hausmannite were $22.36m^{2}/g$, $33.56m^{2}/g$ respectively. The decomposition rate of $CO_{2}$ of deoxidized hausmannite was 57%.

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