Carbon Cloth Diffusion Layer for Fuel Cell Electrode

Xue Jun Zhang; Ya Dong Li; Yan Hong Tian; Su Qing Wang; Li Zhang

doi:10.4028/www.scientific.net/AMR.690-693.635

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 690-693Carbon Cloth Diffusion Layer for Fuel Cell...

Carbon Cloth Diffusion Layer for Fuel Cell Electrode

Abstract:

This paper has developed one way to produce flexible carbon cloth from artificial cotton cloth carbonized at 1000°C with using (NH₄)₂HPO₄ as impregnation agent and phenolic resin as modification agent. The effects of (NH₄)₂HPO₄ and phenolic resin on bulk resistivity, tensile strength, density, thickness and microstructure of the resultant carbon cloth were investigated. The results show that (NH₄)₂HPO₄ impregnation is helpful to increase the carbon yield of artificial cotton cloth and decrease the bulk resistivity. The fibers in the carbon cloth are bond by carbonized phenolic resin, leading to higher tensile strength and lower bulk resistivity. When mass content of (NH₄)₂HPO₄ was 5% and phenolic resin 54%, flexible and porous carbon cloth was prepared with thickness of 0.27mm, density of 0.34g/cm³, bulk resistivity of 0.06Ω·cm and tensile strength of 2.33MPa, which is promising materials for diffusion layer in fuel cell.

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Periodical:

Advanced Materials Research (Volumes 690-693)

Pages:

635-638

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.690-693.635

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Online since:

May 2013

Authors:

Xue Jun Zhang, Ya Dong Li, Yan Hong Tian, Su Qing Wang, Li Zhang

Keywords:

Bulk Resistivity, Carbon Cloth, Diffusion Layer, Fuel Cell (FC), Tensile Strength

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