RESEARCH ON COMPOSITE HYDROPHOBIC MODIFICATION PROCESS OF CARBON FIBER PAPER FOR PEMFC

Ren Hui; Wang Yangfeng; Wang Hongtao; Jiang Rui; Ding Zhongwei

doi:10.19912/j.0254-0096.tynxb.2024-0616

PDF(2565 KB)

Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (8) : 249-254. DOI: 10.19912/j.0254-0096.tynxb.2024-0616

RESEARCH ON COMPOSITE HYDROPHOBIC MODIFICATION PROCESS OF CARBON FIBER PAPER FOR PEMFC

Ren Hui^1,2, Wang Yangfeng², Wang Hongtao², Jiang Rui², Ding Zhongwei¹

Author information +

History +

Abstract

Using polytetrafluoroethylene （PTFE） as a hydrophobic agent, the effect of step-by-step impregnation combined with vacuum drying hydrophobic treatment process on the micromorphology and properties of carbon fiber paper was discussed. The results show that the hydrophobic carbon paper with a load of 10% is the best by ultrasonic secondary impregnation combined with vacuum drying, and the air permeability of the carbon paper is 1760 mL∙mm/（cm²∙h∙mmAq）, the resistivity was 7.3 mΩ∙cm, the contact angle reaches 147°, and the current density is 1.52 A/cm² at 0.6 V, which is better than that of commercial Toray hydrophobic carbon paper. Infrared spectroscopy and XPS show that the presence of chemical bonds containing F reduces the surface energy of the carbon paper and significantly improves the hydrophobicity.

Key words

proton exchange membrane fuel cells（PEMFC） / gas diffusion layer / carbon paper / PTFE / hydrophobic modification / step-by-step impregnation

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Ren Hui, Wang Yangfeng, Wang Hongtao, Jiang Rui, Ding Zhongwei. RESEARCH ON COMPOSITE HYDROPHOBIC MODIFICATION PROCESS OF CARBON FIBER PAPER FOR PEMFC[J]. Acta Energiae Solaris Sinica. 2025, 46(8): 249-254 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0616

References

[1] 张伟, 汪树军, 刘红研, 等. 质子交换膜燃料电池专用碳纸的制备及性能测试[J]. 太阳能学报, 2006, 27(2): 199-202.
ZHANG W, WANG S J, LIU H Y, et al.Preparation and performance test of special carbon paper materials for proton exchange membrane of fuel cell[J]. Acta energiae solaris sinica, 2006, 27(2): 199-202.
[2] 吴迪. 高电流密度下PEMFC阴极强化传质研究[D]. 武汉: 武汉理工大学, 2021.
WU D.Mass transfer enhancement of PEMFC cathode under high current density[D]. Wuhan: Wuhan University of Technology, 2021.
[3] 李梦佳. 碳纸的疏水改性及其性能研究[D]. 天津: 天津工业大学, 2021.
LI M J.Hydrophobic modification of carbon paper and its properties[D]. Tianjin: Tianjin Polytechnic University, 2021.
[4] LIM C, WANG C Y.Effects of hydrophobic polymer content in GDL on power performance of a PEM fuel cell[J]. Electrochimica acta, 2004, 49(24): 4149-4156.
[5] 李梦佳, 马闻骏, 华飞果, 等. 氟化中间相沥青改性碳纸的研究[J]. 中国造纸, 2021, 40(5): 47-53.
LI M J, MA W J, HUA F G, et al.Study on carbon paper modifying with fluorinated mesophase pitch[J]. China pulp & paper, 2021, 40(5): 47-53.
[6] QU T Q, HUANG X Y, WANG B.Effects of the surface structure on the water transport behavior in PEMFC carbon fiber papers[J]. ACS omega, 2022, 7(7): 5992-5997.
[7] CHEN T, LIU S H, ZHANG J W, et al.Study on the characteristics of GDL with different PTFE content and its effect on the performance of PEMFC[J]. International journal of heat and mass transfer, 2019, 128: 1168-1174.
[8] TRUONG V M, WANG C L, YANG M K, et al.Effect of tunable hydrophobic level in the gas diffusion substrate and microporous layer on anion exchange membrane fuel cells[J]. Journal of power sources, 2018, 402: 301-310.
[9] 吕维忠, 王诚, 刘志祥, 等. 非对称气体扩散电极对空冷自增湿质子交换膜燃料电池性能的影响[J]. 太阳能学报, 2010, 31(09): 1135-1140.
LYU W Z, WANG C, LIU Z X, et al.Influence of assymmetric gas diffusion electrode on performance of air-cooled self-humidifying proton exchane membrane fuel cell[J]. Acta energiae solaris sinica, 2010, 31(9): 1135-1140.
[10] GIORGI L, ANTOLINI E, POZIO A, et al.Influence of the PTFE content in the diffusion layer of low-Pt loading electrodes for polymer electrolyte fuel cells[J]. Electrochimica acta, 1998, 43(24): 3675-3680.
[11] ZHOU H K, GAO P P, WANG P, et al.Titanium nitride (TiN)-polytetrafluoroethylene (PTFE)-modified carbon paper used in PEM fuel cells: characterization and corrosion-resistant mechanism[J]. Applied physics A, 2019, 126(1): 37.
[12] 陈逸菲, 赵思涵, 赵浩轩, 等. 燃料电池气体扩散层中碳纸材料研究进展[J]. 中华纸业, 2023, 44(24): 1-9.
CHEN Y F, ZHAO S H, ZHAO H X, et al.Research progress of carbon paper materials in gas diffusion layers of fuel cells[J]. China pulp & paper industry, 2023, 44(24): 1-9.
[13] 刘士华, 陈涛, 谢屹, 等. 超声制备疏水性碳纸的性能研究[J]. 太阳能学报, 2021, 42(11): 437-441.
LIU S H, CHEN T, XIE Y, et al.Study on properties of hydrophobic carbon paper prepared by ultrasonic[J]. Acta energiae solaris sinica, 2021, 42(11): 437-441.
[14] 李霞, 余厚咏, 周颖, 等. 多次交替浸渍法构筑簇状ZnO的PAN复合纳米纤维膜及其光催化性能[J]. 功能高分子学报, 2016, 29(4): 404-410.
LI X, YU H Y, ZHOU Y, et al.Anchoring ZnO clusters on PAN nanofiber membrane by multiple impregnation method and its photocatalytic performance[J]. Journal of functional polymers, 2016, 29(4): 404-410.
[15] ITO H, ABE K, ISHIDA M, et al.Effect of through-plane distribution of polytetrafluoroethylene in carbon paper on in-plane gas permeability[J]. Journal of power sources, 2014, 248(15): 822-830.