Nafion/PBI 質子交換膜在甲醇燃料電池之應用

Nafion/PBI membranes for DMFCs

王韋勝(Wei-Sheng Wang)

指導教授 ： 林秀麗

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

PBI (polybenzimidazole) 與Nafion摻合製作質子交換膜。研究此摻合膜之機械性質、質子傳導率、甲醇滲透率及其應用在甲醇燃料電池之性能。我們發現Nafion/PBI在重量比9/1之摻合膜有最佳之性能。將此摻合膜 (膜厚78 μm) 製作MEA進行DMFC單電池測試結果功率可達65.58 mW/cm2，效能優於Nafion-117 (膜厚175 μm)。

關鍵字

甲醇燃料電池 ； 聚全氟磺酸膜 ； 聚苯並咪唑

並列摘要

On this thesis, we prepare Nafion/PBI blend membranes and study their mechanical properties, proton conductivities, methanol permeateon and the application to direct methanol fuel cell (DMFC). We find the membrane with a Nafion/PBI wt ratio of 9/1 has a optimum property. The Nafion/PBI blend (9/1 g/g) with a thichness of 78 μm is used to prepare MEA and performed DMFC test. The experiment results show that the present membrane had a better DMFC performance than Nafion-117.

並列關鍵字

Nafion ； PBI ； DMFC

參考文獻

洪崇豪，以電紡絲製備彈性奈米SBS纖維膜，碩士論文，成功大學 (2004)

邱志豪，聚苯咪唑合成及薄膜性質，碩士論文，元智大學化工系(2004)

Asensio J. A., Borrós S., Pedro G. R., “Proton-conducting polymers based on benzimidazoles and sulfonated

benzimidezoles,” Polymer Science: Part A: Polymer Chemistry, 40, 3703-3710 (2002).

Bai H., Ho W.S., “New sulfonated polybenzimidazole (SPBI) copolymer-based proton-exchange membranes for fuel cells” Taiwan Institute of Chemical Engineers, 40, 260-267 (2009).