Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Hydrogen Spillover Kinetics - I. Effect of Surface Morphology on [$Pt/MoO_{3}$] Catalyst

수소 spillover 속도론 - I. $Pt/MoO_{3}$ 촉매의 표면 형상 변화

  • Kim Jin Gul (Divsion of Material and Chemical Eng., Soonchunhyang Univ.) ;
  • Kim Seong-Soo (Clean Energy Research Dept. Korean Institute of Energy Research)
  • Published : 2004.12.01
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Abstract

[ $H_2$ ] uptake into $Pt/MoO_{3}$ was enhanced with an increased calcination temperature. Selective CO pulse chemisorption demonstrated that free Pt surface area was decreased as calcination temperature was increased. Characteristic techniques were dedicated to elucidate the closer contact at adlineation sites between Pt and $MoO_3$ substrates. Calcination resulted in supplying the hydrogen access into more $MoO_3$ particles and controlling the kinetics of hydrogen uptake.

소성 온도 증가 시 $Pt/MoO_{3}$로의 수소 흡착이 증가하였다. 선택적 CO 화학 흡착 법을 사용하여 소성 온도의 증가에 다른 백금 표면적의 감소를 측정하였다. 특성화 분석법에 의하여 Pt와 $MoO_3$간의 접촉 활성 점의 접촉이 개선됨을 측정하였다. 소성은 $MoO_3$로의 수소 공급을 증가시켰고, 수소 흡착 속도론을 조절하였다.

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