전기화학회지 (Journal of the Korean Electrochemical Society)
- 제4권4호
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- Pages.172-175
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- 2001
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- 1229-1935(pISSN)
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- 2288-9000(eISSN)
DOI QR Code
Nanophase Catalyst Layer for Direct Methanol Fuel Cells
- Chang Hyuk (Materials & Devices Lab, Samsung Advanced Institute of Technology) ;
- Kim Jirae (Materials & Devices Lab, Samsung Advanced Institute of Technology)
- 발행 : 2001.11.01
초록
마그네트론 스퍼터링 방법에 의하여 Nanophase 촉매층을 형성하여 Direct Methanol Fuel Cell(DMFC)에 적용하였다. 일반적인 박막 증착 방법보다 높은 압력 (Ar/He혼합기체)에서 금속 Target과 탄소 Target을 동시에 스퍼터링하여 내피온막 위에 직접 코팅함으로써 기공성 있는 PtRu혹은 Pt및 탄소입자를 포함한 새로운 구조의 촉매층을 형성하였다. 본 방법에 의하여
Nanophase catalyst layer for direct methanol fuel cell has been fabricated by magnetron sputtering method. Catalyst metal targets and carbon were sputtered simultaneously on the Nafion membrane surface at abnormally higher gas (Ar/He mixture) pressure than that of normal thin film processing. They could be coated as a novel structure of catalyst layer containing porous PtRu or Pt and carbon particles both in nanometer range. Membrane electrode assembly made with this layer led to a reduction of the catalyst loading. At the catalyst loading of 1.5mg