用0.1 mol/L (NH4)2S2O8/1 mol/L盐酸溶液作引发剂,采用原位化学聚合的方法将苯胺单体聚合在Nafion(R) 112膜基体中.扫描电镜(SEM)和能谱(EDX)测试结果表明,复合膜的表面和Nafion(R) 112膜相比有明显变化,苯胺主要聚合在膜的两侧.复合膜的红外光谱中出现明显聚苯胺(PANI)的特征吸收峰说明,苯胺成功地聚合在Nafion(R) 112膜中.完全湿润状态下复合膜的质子电导率和Nafion(R) 112膜相比有少许下降.甲醇渗透性能测试表明,复合膜具有明显的阻醇作用,NF/PANI-2膜的甲醇渗透率值是1.83×10-6 cm2/s和Nafion(R) 112膜相比降低了44％.相应地由NF/PANI-2膜组装的直接甲醇燃料电池(DMFC)开路电压值比Nafion(R) 112膜的提高了7％,最大功率密度提高了30％.
参考文献
| [1] | Silav V S;Schirmer J;Reissner R et al.Proton electrolyte membrane properties and direct methanol fuel cell performance Ⅱ.Fuel cell performance and membrane properties effects[J].Journal of Power Sources,2005,140:41-49. |
| [2] | 任素贞,梁振兴,辛勤,孙公权,杨学锋.直接甲醇燃料电池用质子交换膜研究进展[J].膜科学与技术,2005(04):51-55. |
| [3] | San P J;Zeng C L;Zhi Q T .Layer-by-layer self-assembly of composite polyelectrolyte-nafion membranes for direct methanol fuell cells[J].Advanced Materials,2006,18:1068-1072. |
| [4] | Bae B C;Ha H Y;Kim D J .Nafion-graft-polystyrene sulfonic acid membranes for direct methanol fuel cells[J].Journal of Membrane Science,2006,276:51-58. |
| [5] | Zhongwei Chen;Brett Holmberg;Wenzhen Li .Nafion/Zeolite Nanocomposite Membrane by in Situ Crystallization for a Direct Methanol Fuel Cell[J].Chemistry of Materials: A Publication of the American Chemistry Society,2006(24):5669-5675. |
| [6] | Marie E.;Rothe R.;Antonietti M.;Landfester K. .Synthesis of polyaniline particles via inverse and direct miniemulsion[J].Macromolecules,2003(11):3967-3973. |
| [7] | Dan A.;Sengupta PK. .Synthesis and characterization of polyaniline prepared in formic acid medium[J].Journal of Applied Polymer Science,2004(2):991-999. |
| [8] | Karami H;Mousavi M F;Shmsipur M .A novel dry bipolar rechargeble battery based on polyaniline[J].Journal of Power Sources,2003,124:303-308. |
| [9] | Gharibi H;Zhiani M;Mirzaie R A et al.Investigation of polyaniline impregnation on the performance of gas diffusion electrode (GDE) in PEMFC using binary of Nafion and polyaniline nanofiber[J].Journal of Power Sources,2006,157:703-708. |
| [10] | Tan S;Be' langer D .Characterization and transport properties of Nafion/polyaniline composite membranes[J].Journal of Physical Chemistry B,2005,109:23480-23490. |
| [11] | Roeder J;Zucolotto V;Shishatskiy S;Bertolino JR;Nunes SP;Pires ATN .Mixed conductive membrane: Aniline polymerization in an acid SPEEK matrix[J].Journal of Membrane Science,2006(1/2):70-75. |
| [12] | Nagarale RK;Gohil GS;Shahi VK .Sulfonated poly(ether ether ketone)/polyaniline composite proton-exchange membrane[J].Journal of Membrane Science,2006(1/2):389-396. |
| [13] | Lee, CH;Park, HB;Lee, YM;Lee, RD .Importance of proton conductivity measurement in polymer electrolyte membrane for fuel cell application[J].Industrial & Engineering Chemistry Research,2005(20):7617-7626. |
| [14] | Ramya K;Dhathathreyan K S .Direct methanol fuel cells:determination of fuel crosses over in a polymer electrolyte membrane[J].Journal of Electroanalytical Chemistry,2003,542:109-115. |
| [15] | Zhenxing Liang;Weimin Chen;Jianguo Liu;Suli Wang;Zhenhua Zhou;Wenzhen Li;Gongquan Sun;Qin Xin .FT-IR study of the microstructure of Nafion~(~R) membrane[J].Journal of Membrane Science,2004(1/2):39-44. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%