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磺酸化聚苯乙烯摻混離子液體於質子交換膜式燃料電池之應用 = Sulfon...

國立高雄大學化學工程及材料工程學系碩士班

磺酸化聚苯乙烯摻混離子液體於質子交換膜式燃料電池之應用 = Sulfonated Polystyrene Membrane Blended with Ionic Liquid for PEM Fuel Cells Application

紀錄類型:	書目-語言資料,印刷品 : 單行本
並列題名:	Sulfonated Polystyrene Membrane Blended with Ionic Liquid for PEM Fuel Cells Application
作者:	趙立偉,
其他團體作者:	國立高雄大學
出版地:	[高雄市]
出版者:	撰者;
出版年:	民99[2010]
面頁冊數:	121面圖，表 : 30公分;
標題:	磺酸化聚苯乙烯
標題:	Sulfonated Polystyrene
電子資源:	http://handle.ncl.edu.tw/11296/ndltd/68570215937396469527
摘要註:	本研究主要為將離子液體（Ionic liquids）摻混於磺酸化聚苯乙烯之中，質子導電度（Proton conductivity）可以在較高溫下達到10-2 S/cm級次，並觀察複合薄膜的特性。本研究將聚苯乙烯以硫酸乙醯溶液磺酸化，使聚苯乙烯支鏈末端具有磺酸根基團，再與離子液體混合，並製備成質子交換複合薄膜。聚苯乙烯磺酸化程度21 mol%以上（2.42×10-2 S/cm）即可達到商用質子交換膜Nafion®（5.24×10-2 S/cm）同級數質子導電度；在測試環境溫度達到80℃之後，Nafion的質子導電度下降到1.85×10-2 S/cm，因薄膜中散失的水份對質子傳遞機制（Hopping mechanism、Vehicle mechanism）來說至關重要；加入離子液體的複合薄膜在80℃時，PSS/EMICl可從常溫的5.51×10-3 S/cm提升至7.67×10-2 S/cm，以及PSS/EMIBF4可從5.28×10-3 S/cm提升至3.33×10-2 S/cm，顯示離子液體添加之後，複合薄膜不會因為水份散失而使質子導電度下降，其傳導機制與傳統的質子交換膜不同，離子液體在高溫下的自我解離可能是促使薄膜離子導電度提升的原因。更進一步將複合薄膜組裝成膜電極組（Membrane Electrode Assembly，MEA），通入H2/O2測試其電池效能，摻混EMIBF4於PSS複合薄膜的MEA，電池功率密度比原來PSS薄膜MEA提升六倍，其電位約為理論電池電位的26.8%，顯示離子液體的混摻有助於提升燃料電池的效能。 The subject of this study is to blend sulfonated polystyrene membrane with ionic liquids for PEM fuel cells application. The proton conductivity of the composite membranes can reach to the order of 10-2 S/cm in a relatively high temperature. The characteristic properties of composite membranes are also investigated including water uptake and proton conductivity. Polystyrene is sulfonated by acetyl sulfate, and the end of the branch of polystyrene is sulfonic acid group. The proton exchange composite membranes are prepared by sulfonated polystyrene blended with ionic liquids. The proton conductivity of sulfonated polystyrene of 21mol% is obtained about 2.42×10-2 S/cm which is in the same magnitude of order as that of commercial Nafion membrane（5.24×10-2 S/cm）. At 80℃, the proton conductivity of Nafion membrane decreases to 1.85×10-2 S/cm because of the loss of water in membrane. However, when temperature is increased from ambient temperature to 80℃, the proton conductivity is enhanced from 5.51×10-3 S/cm to 7.67×10-2 S/cm for PSS/EMICl composite membrane, and from 5.28×10-3 S/cm to 3.33×10-2 S/cm for PSS/EMIBF4 composite membrane. The results imply that the decrease of proton conductivity due to loss of water can be compensated by adding ionic liquids into sulfonated polystyrene membrane. The mechanism of proton conduction in PSS/ILs membrane might differ from that in PSS membrane. The dissociation of ionic liquids might be the major effect for enhancement of proton conductivity of composite membrane. In addition, membrane electrode assembly（MEA） is manufactured by hot-pressing composite membrane in-between two catalytical electrode. The performance of single fuel cell is carried out using H2/O2 as fuel. The power density of PSS/EMIBF4 membrane-based MEA is found to be six times higher than that found in PSS membrane-based MEA. The results suggest that proton exchange membrane blended with ionic liquids can indeed improve the performance of MEA.

磺酸化聚苯乙烯摻混離子液體於質子交換膜式燃料電池之應用 = Sulfonated Polystyrene Membrane Blended with Ionic Liquid for PEM Fuel Cells Application
趙, 立偉

磺酸化聚苯乙烯摻混離子液體於質子交換膜式燃料電池之應用 = Sulfonated Polystyrene Membrane Blended with Ionic Liquid for PEM Fuel Cells Application / 趙立偉撰 - [高雄市] : 撰者, 民99[2010]. - 121面 ; 圖，表 ; 30公分.
參考書目：面.
磺酸化聚苯乙烯Sulfonated Polystyrene

磺酸化聚苯乙烯摻混離子液體於質子交換膜式燃料電池之應用 = Sulfonated Polystyrene Membrane Blended with Ionic Liquid for PEM Fuel Cells Application
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328 $a 碩士論文--國立高雄大學化學工程及材料工程學系碩士班
330 $a 本研究主要為將離子液體（Ionic liquids）摻混於磺酸化聚苯乙烯之中，質子導電度（Proton conductivity）可以在較高溫下達到10-2 S/cm級次，並觀察複合薄膜的特性。本研究將聚苯乙烯以硫酸乙醯溶液磺酸化，使聚苯乙烯支鏈末端具有磺酸根基團，再與離子液體混合，並製備成質子交換複合薄膜。聚苯乙烯磺酸化程度21 mol%以上（2.42×10-2 S/cm）即可達到商用質子交換膜Nafion®（5.24×10-2 S/cm）同級數質子導電度；在測試環境溫度達到80℃之後，Nafion的質子導電度下降到1.85×10-2 S/cm，因薄膜中散失的水份對質子傳遞機制（Hopping mechanism、Vehicle mechanism）來說至關重要；加入離子液體的複合薄膜在80℃時，PSS/EMICl可從常溫的5.51×10-3 S/cm提升至7.67×10-2 S/cm，以及PSS/EMIBF4可從5.28×10-3 S/cm提升至3.33×10-2 S/cm，顯示離子液體添加之後，複合薄膜不會因為水份散失而使質子導電度下降，其傳導機制與傳統的質子交換膜不同，離子液體在高溫下的自我解離可能是促使薄膜離子導電度提升的原因。更進一步將複合薄膜組裝成膜電極組（Membrane Electrode Assembly，MEA），通入H2/O2測試其電池效能，摻混EMIBF4於PSS複合薄膜的MEA，電池功率密度比原來PSS薄膜MEA提升六倍，其電位約為理論電池電位的26.8%，顯示離子液體的混摻有助於提升燃料電池的效能。 The subject of this study is to blend sulfonated polystyrene membrane with ionic liquids for PEM fuel cells application. The proton conductivity of the composite membranes can reach to the order of 10-2 S/cm in a relatively high temperature. The characteristic properties of composite membranes are also investigated including water uptake and proton conductivity. Polystyrene is sulfonated by acetyl sulfate, and the end of the branch of polystyrene is sulfonic acid group. The proton exchange composite membranes are prepared by sulfonated polystyrene blended with ionic liquids. The proton conductivity of sulfonated polystyrene of 21mol% is obtained about 2.42×10-2 S/cm which is in the same magnitude of order as that of commercial Nafion membrane（5.24×10-2 S/cm）. At 80℃, the proton conductivity of Nafion membrane decreases to 1.85×10-2 S/cm because of the loss of water in membrane. However, when temperature is increased from ambient temperature to 80℃, the proton conductivity is enhanced from 5.51×10-3 S/cm to 7.67×10-2 S/cm for PSS/EMICl composite membrane, and from 5.28×10-3 S/cm to 3.33×10-2 S/cm for PSS/EMIBF4 composite membrane. The results imply that the decrease of proton conductivity due to loss of water can be compensated by adding ionic liquids into sulfonated polystyrene membrane. The mechanism of proton conduction in PSS/ILs membrane might differ from that in PSS membrane. The dissociation of ionic liquids might be the major effect for enhancement of proton conductivity of composite membrane. In addition, membrane electrode assembly（MEA） is manufactured by hot-pressing composite membrane in-between two catalytical electrode. The performance of single fuel cell is carried out using H2/O2 as fuel. The power density of PSS/EMIBF4 membrane-based MEA is found to be six times higher than that found in PSS membrane-based MEA. The results suggest that proton exchange membrane blended with ionic liquids can indeed improve the performance of MEA.
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610 0 $a 磺酸化聚苯乙烯 $a 離子液體 $a 質子交換膜 $a 燃料電池
610 1 $a Sulfonated Polystyrene $a Ionic Liquids $a Proton Exchange Membrane $a PEM Fuel Cells
681 $a 008M/0019 $b 541208 4902 $v 2007年版
700 1 $a 趙 $b 立偉 $4 撰 $3 482966
712 0 2 $a 國立高雄大學 $b 化學工程及材料工程學系碩士班 $3 353898
801 0 $a tw $b 國立高雄大學 $c 20101224 $g CCR
856 7 $z 電子資源 $2 http $u http://handle.ncl.edu.tw/11296/ndltd/68570215937396469527