한국분말재료학회지 (Journal of Powder Materials)

  • 제21권2호
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  • Pages.119-123
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  • 2014
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  • 2799-8525(pISSN)
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  • 2799-8681(eISSN)
한국분말재료학회 (*구 분말야금학회) (The Korean Powder Metallurgy & Materials Institute)
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광화학 환원방법을 이용한 Pt@TiO2 나노 복합체 합성

Synthesis of Pt@TiO2 Nano-composite via Photochemical Reduction Method

  • Kim, Ji Young (Department of Materials Science and Engineering, Hanyang University) ;
  • Byun, Jong Min (Department of Materials Science and Engineering, Hanyang University) ;
  • Kim, Jin Woo (Department of Materials Science and Engineering, Hanyang University) ;
  • Kim, Young Do (Department of Materials Science and Engineering, Hanyang University)
  • 투고 : 2014.04.01
  • 심사 : 2014.04.14
  • 발행 : 2014.04.28
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초록

Pt has been widely used as catalyst for fuel cell and exhausted gas clean systems due to its high catalytic activity. Recently, there have been researches on fabricating composite materials of Pt as a method of reducing the amount of Pt due to its high price. One of the approaches for saving Pt used as catalyst is a core shell structure consisting of Pt layer on the core of the non-noble metal. In this study, the synthesis of Pt shell was conducted on the surface of $TiO_2$ particle, a non-noble material, by applying ultraviolet (UV) irradiation. Anatase $TiO_2$ particles with the average size of 20~30 nm were immersed in the ethanol dissolved with Pt precursor of $H_2PtCl_6{\cdot}6H_2O$ and exposed to UV irradiation with the wavelength of 365 nm. It was confirmed that Pt nano-particles were formed on the surface of $TiO_2$ particles by photochemical reduction of Pt ion from the solution. The morphology of the synthesized Pt@$TiO_2$ nano-composite was examined by TEM (Transmission Electron Microscopy).

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피인용 문헌

  1. Synthesis and Photo Catalytic Activity of 10 wt%, 20 wt%Li-TiO2 Composite Powders vol.23, pp.1, 2016, https://doi.org/10.4150/KPMI.2016.23.1.33
  2. Photocatalytic activity of rutile TiO2 powders coupled with anatase TiO2 nanoparticles using surfactant vol.25, pp.3, 2018, https://doi.org/10.4150/KPMI.2018.25.3.257