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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Photocatalytic Dehydrogenation of Potassium Formate Over Pd/TiO2

Pd/TiO2 촉매를 이용한 HCO2K 광 분해 반응

  • JEON, MINA (Fuel Cell Research Center, Korea Institute of Science and Technology) ;
  • CHOI, SU BIN (Fuel Cell Research Center, Korea Institute of Science and Technology) ;
  • DOH, HYUNMI (Fuel Cell Research Center, Korea Institute of Science and Technology) ;
  • PARK, HYUN S. (Fuel Cell Research Center, Korea Institute of Science and Technology) ;
  • YOON, CHANG WON (Fuel Cell Research Center, Korea Institute of Science and Technology) ;
  • NAM, SUK WOO (Fuel Cell Research Center, Korea Institute of Science and Technology)
  • 전미나 (한국과학기술연구원 연료전지연구센터) ;
  • 최수빈 (한국과학기술연구원 연료전지연구센터) ;
  • 도현미 (한국과학기술연구원 연료전지연구센터) ;
  • 박현서 (한국과학기술연구원 연료전지연구센터) ;
  • 윤창원 (한국과학기술연구원 연료전지연구센터) ;
  • 남석우 (한국과학기술연구원 연료전지연구센터)
  • Received : 2017.09.28
  • Accepted : 2017.10.30
  • Published : 2017.10.30
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Abstract

A $Pd/TiO_2$ catalyst was prepared by a conventional impregnation method, and further characterized using transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and UV-Vis spectroscopy. The as-prepared material was employed to accelerate dehydrogenation of potassium formate in the presence of light at different temperatures. The $Pd/TiO_2$ catalyst showed distinct dehydrogenation activities, and particularly, the material exhibited a higher turnover frequency (TOF) of $2,097h^{-1}$ at $80^{\circ}C$ after 10 minutes in the presence of light compared to that (TOF of $1,477h^{-1}$) obtained in the absence of light. Numerous analytical techniques suggest that the increased dehydrogenation activity likely originates from light-excited electron and hole at the photocatalyst, i.e., $TiO_2$, in conjunction with metal-support interaction.

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References

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