수송용 연료전지 스택의 탄소 계열 분리판 표면에 형성된 바나듐 산화물 다층 박막의 온도-저항 특성에 관한 연구
- Title
- 수송용 연료전지 스택의 탄소 계열 분리판 표면에 형성된 바나듐 산화물 다층 박막의 온도-저항 특성에 관한 연구
- Other Titles
- Temperature-Resistance Characteristics of Multi-layer VOx Thin Films on Carbon-based Separators of Fuel Cell Stacks for Transportation Applications
- Author
- 엄석기
- Keywords
- 연료전지; 탄소 계열 분리판; 바나듐 산화물 다층 박막; 온도-저항 특성; Fuel Cells; Carbon-based Separators; Multi-layer Vanadium Oxide Thin Films; Temperature-Resistance Characteristics
- Issue Date
- 2011-11
- Publisher
- 한국자동차공학회 / The Korean Society Of Automotive Engineers
- Citation
- 한국자동차공학회 추계학술대회 및 전시회. 2011-11 :2682-2685
- Abstract
- The present experimental study was carried out to examine the applicability of crystalline vanadium oxide thin films as a potential electrical heat source. The thin solid films were formed uniformly along the edges of carbon-based separators to enhance cold-start performance of fuel cells for transportation applications. The multi-layered crystalline vanadium oxide films were synthesized by using 0.5M vanadium alkoxide precursor and then deposited onto porous graphite plates with a gas-impermeable resin through dip-coating technique and a subsequent post-heat treatment under vacuum conditions. The temperature-resistance properties, the quantitative analysis of the elemental composition, and the microstructure of the vanadium oxide films were investigated using 4-point probe, EDX, and FE-SEM, respectively. In this study, the temperature dependent electrical properties of the sol-gel derived vanadium-based films onto graphite plates were characterized by a Boltzmann sigmoidal regression in the temperature range of -20 ?? 80℃. Also, the theoretical discussion of the surface morphology with pore-induced shrinkage cracking in the films was presented.
- URI
- http://www.dbpia.co.kr/Journal/ArticleDetail/NODE01762652http://hdl.handle.net/20.500.11754/57618
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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