Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Synthesis of Pd/TiO2 Catalyst for Aerobic Benzyl Alcohol Oxidation

호기성 벤질 알코올 산화반응을 위한 팔라듐 이산화티타늄 촉매 개발

  • Cho, Tae Jun (Department of Chemical & Biomolecular Engineering, Seoul National University of Science & Technology) ;
  • Yoo, Kye Sang (Department of Chemical & Biomolecular Engineering, Seoul National University of Science & Technology)
  • 조태준 (서울과학기술대학교 화공생명공학과) ;
  • 유계상 (서울과학기술대학교 화공생명공학과)
  • Received : 2014.03.21
  • Accepted : 2014.04.01
  • Published : 2014.06.10
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Abstract

$Pd/TiO_2$ particles were prepared by wet impregnation for aerobic benzyl alcohol oxidation. Catalysts were prepared by the impregnation of 10 wt% palladium on $TiO_2$ after calcination at various temperatures. The surface areas of the catalysts were changed with calcination temperature. The catalyst calcined at $300^{\circ}C$ possessed the highest surface areas. Catalytic activity of the prepared samples was examined for aerobic benzyl alcohol oxidation. Among the samples, $Pd/TiO_2$ calcined at $300^{\circ}C$ showed the highest catalytic activity. Moreover, the catalysts with various Pd concentrations from 5 wt% to 15 wt% were prepared to investigate an optimum catalyst. 10 wt% $Pd/TiO_2$ was the most active in this reaction due to its higher surface areas and metal dispersion.

호기성 벤질 알코올 산화반응용 촉매로 팔라듐이 담지된 이산화티타늄 입자를 제조하였다. 우선 합성한 이산화티타늄입자에 10 wt% 팔라듐을 함침한 후, 다양한 온도에서 소성하여 촉매를 제조하였다. 촉매의 비표면적은 소성온도에 따라 변하였는데, $300^{\circ}C$에서 소성한 촉매의 비표면적이 가장 높게 측정되었다. 제조된 촉매의 반응 결과 $300^{\circ}C$에서 소성한 입자가 가장 우수한 반응성능을 보였다. 또한 팔라듐의 농도를 5 wt%에서 15 wt%까지 조절하여 함침한 후 $300^{\circ}C$에서 소성하여 촉매를 합성하였다. 팔라듐의 농도가 10 wt%인 $Pd/TiO_2$ 입자가 벤질알코올 산화반응에 최적의 촉매로 규명되었다. 이는 상대적으로 높은 촉매의 비표면적 및 팔라듐 분산도에 기인한다.

Keywords

References

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