Pt/TiO2 촉매의 물리화학적 특성이 CO 상온산화 반응에 미치는 영향 연구 = Effect of Physico-chemical Properties of Pt/TiO2 Catalyst on CO Oxidation at Room Temperature

국문 초록 (Abstract)

본 연구에서는, Pt/TiO2 촉매의 물리화학적 특성이 CO 상온산화 반응에 미치는 영향을 조사하기 위하여 각기 다른물리적 특성을 가지는 다양한 TiO2 지지체를 이용하여 Pt/TiO2 촉매를 제조한 후 평가하였다. 촉매의 물리화학적 특성을 조사하기 위하여 XPS, CO-chemisorption, BET, CO-TPD 분석을 수행하였다. 그 결과, active particle diameter가 작을수록, metal dispersion, surface area가 클수록 우수한 CO 상온산화 반응을 나타내었다. 이러한 물리적 특성은 active site 의 수를 증진시켜 대상물질은 CO의 흡착량의 증가를 야기시켰다. 또한, O2-consumption이 클수록 우수한 산소 전달능력을 통해 보다 높은 CO 상온산화 반응활성을 나타내었다.

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