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Development of an Anti-Corrosion Conductive Nano Carbon Coating Layer on Metal Bipolar Plates

Title
Development of an Anti-Corrosion Conductive Nano Carbon Coating Layer on Metal Bipolar Plates
Author
김종렬
Keywords
Bipolar Plates; Carbon Coating; Corrosion Resistivity; Interfacial Contact Resistance; PEMFCs
Issue Date
2018-09
Publisher
AMER SCIENTIFIC PUBLISHERS
Citation
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v. 18, No. 9, Page. 6278-6282
Abstract
For automotive applications of polymer electrolyte membrane fuel cells, the enhancement of the corrosion resistance of metal bipolar plates has been a critical issue with regard to the lifespan of fuel cell stacks. In this paper, we present a novel method for increasing the lifespan by means of a conductive carbon coating on bipolar plates. Conductive carbon films were plasma coated onto metal bipolar plates in a vacuum at various temperatures. As a result, 316L stainless plates with a 10-nm-thick carbon coating layer on a 20-nm-thick CrN undercoat layer showed-contact resistance of 10.71 m Omega cm(2)@10 kgf/cm(2) and a corrosion current of 0.5 mu A/cm(2)@0.6 V. This thin coating layer with high conductivity and excellent corrosion resistance suggests a new, effective coating method for the mass production of metal bipolar plates.
URI
https://www.ingentaconnect.com/content/asp/jnn/2018/00000018/00000009/art00076http://repository.hanyang.ac.kr/handle/20.500.11754/105812
ISSN
1533-4880; 1533-4899
DOI
10.1166/jnn.2018.15642
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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