采用干法成型技术制备聚丙烯腈(PAN)基炭纤维纸坯体,将其经树脂浸渍、热压、炭化、石墨化处理后制备成轻量化炭纤维纸.利用扫描电子显微镜(SEM)观察炭纤维纸及坯体的显微结构,利用X射线衍射仪测试不同温度处理后的石墨化度,并利用四探针法测试炭纤维纸的导电性能,透气性采用压差法进行测试.结果表明:石墨化温度是影响炭纤维纸电阻率的关键因素,而密度对电阻率的影响较小;透气性随厚度和体积密度的增加而降低;制备的炭纤维纸厚度为0.11 mm、密度为0.65 g/cm3,将其经2 000 ℃石墨化处理后,采用Pt载量0.5 mg/cm2的Core112CCM为膜电极,在H2与空气的流量比为1.2-5、温度60 ℃、常压条件下进行单体电池性能测试,电流密度为500 mA/cm2时输出电压为0.6 V,电池输出性能较好.
参考文献
| [1] | Chao-Yang Wang .Fundamental Models for Fuel Cell Engineering[J].Chemical Reviews,2004(10):4727-4766. |
| [2] | HAILE S M .Materials fur fuel cells[J].Materials Today,2003,6(03):24-29. |
| [3] | MATHIS M F;ROTH J;FLEMING J.Handbook of fuel cells-Fundamentals,technology and applications[M].New York:John Wiley and Sons,Inc,2003 |
| [4] | Lin GY;Van Nguyen T .Effect of thickness and hydrophobic polymer content of the gas diffusion layer on electrode flooding level in a PEMFC[J].Journal of the Electrochemical Society,2005(10):A1942-A1948. |
| [5] | GODAT J;MARECHOL F .Optimization of a fuel cell system using process integration techniques[J].Journal of Power Sources,2003,1l8(1/2):411-423. |
| [6] | Xuejun Zhang;Zengmin Shen .Carbon fiber paper for fuel cell electrode[J].Fuel,2002(17):2199-2201. |
| [7] | R.B. Mathur;P.H. Maheshwari;T.L. Dhami .Processing of carbon composite paper as electrode for fuel cell[J].Journal of Power Sources,2006(2):790-798. |
| [8] | Yun Wang;Chao-Yang Wang;K. S. Chen .Elucidating differences between carbon paper and carbon cloth in polymer electrolyte fuel cells[J].Electrochimica Acta,2007(12):3965-3975. |
| [9] | Bordjiba T;Mohamedi M;Dao LH;Aissa B;El Khakani MA .Enhanced physical and electrochemical properties of nanostructured carbon nanotubes coated microfibrous carbon paper[J].Chemical Physics Letters,2007(1-3):88-93. |
| [10] | Chunyu Du;Baorong Wang;Xinqun Cheng .Hierarchy Carbon Paper For The Gas Diffusion Layer Of Proton Exchange Membrane Fuel Cells[J].Journal of Power Sources,2009(2):505-508. |
| [11] | 肖勇,黄启忠,常新,王秀飞,郭俊.CVD法制备质子交换膜燃料电池用炭纤维纸[J].中南大学学报(自然科学版),2008(06):1219-1223. |
| [12] | DU Chao;MING Ping-wen;HOU Ming;FU Jie SHEN Qiang LIANG Dong FU Yun-feng LUO Xiao-kuan SHAO Zhi-gang YI Bao-lian .Preparation and properties of thin epoxy/compressed expanded graphite composite bipolar plates for proton exchange membrane fuel cells[J].Journal of Power Sources,2010,195(03):794-800. |
| [13] | 潘牧,罗志平,张东方,袁润章.质子交换膜导电性的测试方法分析[J].电池,2002(03):161-164. |
| [14] | KONG C S;KIM D Y;LEE H K;SHUL Y G LEE T H .Influence of pore-size distribution of diffusion layer on mass-transport problems of proton exchange membrane fuel cell[J].Journal of Power Sources,2002,108(1/2):185-191. |
| [15] | 张福勤,黄启忠,黄伯云,巩前明,陈腾飞.C/C复合材料石墨化度与导电性能的关系[J].新型炭材料,2001(02):45-48. |
| [16] | Ching-Han Liu;Tse-Hao Ko;Yuan-Kai Liao .Effect of carbon black concentration in carbon fiber paper on the performance of low-temperature proton exchange membrane fuel cells[J].Journal of Power Sources,2008(1):80-85. |
| [17] | Ching-Han Liu;Tse-Hao Ko;En-Chi Chang;Huei-Di Lyu;Yuan-Kai Liao .Effect of carbon fiber paper made from carbon felt with different yard weights on the performance of low temperature proton exchange membrane fuel cells[J].Journal of Power Sources,2008(1):276-282. |
| [18] | Liang Hao;Ping Cheng .Lattice Boltzmann Simulations Of Anisotropic Permeabilities In Carbon Paper Gas Diffusion Layers[J].Journal of Power Sources,2009(1):104-114. |
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