한국수소및신에너지학회논문집 (Transactions of the Korean hydrogen and new energy society)

  • 제24권5호
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  • Pages.359-366
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  • 2013
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
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ZrO2-SiO2 복합산화물에 담지된 백금 촉매의 요오드화수소 분해 특성 연구

A Study on Characteristics of HI Decomposition Using Pt Catalysts on ZrO2-SiO2 Mixed Oxide

  • Ko, Yunki (Hydrogen and Fuel Cell Department, Korea Institute of Energy Research) ;
  • Park, Eunjung (Hydrogen and Fuel Cell Department, Korea Institute of Energy Research) ;
  • Bae, Kikwang (Hydrogen and Fuel Cell Department, Korea Institute of Energy Research) ;
  • Park, Chusik (Hydrogen and Fuel Cell Department, Korea Institute of Energy Research) ;
  • Kang, Kyoungsoo (Hydrogen and Fuel Cell Department, Korea Institute of Energy Research) ;
  • Cho, Wonchul (Hydrogen and Fuel Cell Department, Korea Institute of Energy Research) ;
  • Jeong, Seonguk (Hydrogen and Fuel Cell Department, Korea Institute of Energy Research) ;
  • Kim, Changhee (Hydrogen and Fuel Cell Department, Korea Institute of Energy Research) ;
  • Kim, Young Ho (Department of Industrial Chemistry, Chungnam National University)
  • 투고 : 2013.08.09
  • 심사 : 2013.10.31
  • 발행 : 2013.10.31
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초록

This work is investigated for the catalytic decomposition of hydrogen iodide (HI). Platinum was used as active material by loading on $ZrO_2-SiO_2$ mixed oxide in HI decomposition reaction. To obtain high and stable conversion of hydrogen iodide in severe condition, it was required to improve catalytic activity. For this reason, a method increasing dispersion of platinum was proposed in this study. In order to get high dispersion of platinum, zirconia was incorporated in silica by sol-gel synthesis. Incorporating zirconia influence increasing platinum dispersion and BET surface area as well as decreasing deactivation of catalysts. It should be able to stably product hydrogen for a long time because of inhibitive deactivation. HI decomposition reaction was carried out under the condition of $450^{\circ}C$ and 1 atm in a fixed bed reactor. Catalysts analysis methods such as $N_2$ adsorption/desorption analysis, X-ray diffraction, X-ray fluorescence, ICP-AES and CO gas chemisorption were used to measurement of their physico-chemical properties.

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참고문헌

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