PBI/PPA膜製備與高溫燃料電池性能研究

Preparation of PBI/PPA Membranes for High Temperature PEMFCs

劉宥琪(Yu-Chi Liu)

指導教授 ： 余子隆

元智大學/工程學院/化學工程與材料科學學系/碩士(2011年)

摘要

本研究以3,3-二胺基聯苯胺及間苯二甲酸單體合成聚苯並咪唑( polybenz-imidazole , PBI ) 。GPC測定PBI分子量為Mw = 2.05×105 ，Mn = 9×104。合成反應產物PBI與PPA混合物注形製作質子交換膜，應用於燃料電池。我們利用SEM (Scanning Electron Microscope)觀察膜材表面以及截面的結構、TGA (Thermogravimetric analysis)分析膜材熱穩定性。並將PBI/PPA膜材製作成膜電極組 (MEA)，在160℃進行H2/O2單電池測試，並觀察其在燃料電池中的可行性。

關鍵字

聚苯並咪唑 ； 質子交換膜燃料電池

並列摘要

In this thesis, we synthesized polybenzimidazole (PBI) from 3,3’-diaminobenzidine and isophthalic acid . The molecular weight of PBI determined by GPC (gel permeation chromatography) with polystyrene as a standard was Mw = 2.05×105 g/mol. The polymerized find product mixture PBI with PPA was used to prepare the proton exchange membrane. The morphology of surface and cross section of the membrances was investigated using by SEM (Scanning Electron Microscope). TGA (thermogravimetric analysis) was used to study the thermo properties of membranes. The membranes were fabricated with the catalyst layers to prepare MEAs and carried out single cell tests.

並列關鍵字

polybenzimidazole ； PEMFCs

參考文獻

“Proton-Conducting Polymers Based on Benzimidazoles and

Journal of Polymer Science, Part A: Polymer Chemistry 40 (21)

3703-3710 (2002)

2. Bouchet R., Siebert E.,

“Proton conduction in acid doped polybenzimidazole”,