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混摻離子液體之磺酸化聚苯乙烯於質子交換膜式燃料電池之應用 = Sulfo...

國立高雄大學化學工程及材料工程學系碩士班

混摻離子液體之磺酸化聚苯乙烯於質子交換膜式燃料電池之應用 = Sulfonated Polystyrene Impregnated with Ionic Liquids as Proton Exchange Membranes for the Application in Fuel Cells

紀錄類型:	書目-語言資料,印刷品 : 單行本
並列題名:	Sulfonated Polystyrene Impregnated with Ionic Liquids as Proton Exchange Membranes for the Application in Fuel Cells
作者:	陳永達,
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:	2013[民102]
面頁冊數:	129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/90693694414939969521
附註:	參考書目：面105-117
附註:	103年12月16日公開
摘要註:	本研究主要為將離子液體（Ionic liquids）混摻於磺酸化聚苯乙烯中。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31.99 mol%以上（1.841×10-2 S/cm）即可達到商用質子交換膜NafionR（9.63×10-2 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3.07×10-3 S/cm提升至5.56×10-2 S/cm，以及PSS/EMICF3SO3可從1.77×10-2 S/cm提升至4.37×10-2 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以兩片觸媒電及夾住，進行熱壓，而組裝成膜電極組（Membrane Electrode Assembly，MEA），通入H2/O2測試其電池效能，顯示PSS/EMICF3SO3複合薄膜之最大電池功率密度與相同磺酸化程度之磺酸化聚苯乙烯比較下，有43.7%的提升。結果得知混摻離子液體之磺酸化聚苯乙烯的確可改善膜電極組之效能。測試不同離子液體混摻磺酸化聚苯乙烯所組裝的膜電極組之效能，以進行研究與探討。 The subject of this study is sulfonated polystyrene (PSS) impregnated with ionic liquids (ILs) as PEM for the application in fuel cells. PS is sulfonated by acetyl sulfate. The PSS/IL composite membranes are prepared by solution casting of PSS/ILs solutions. The characteristic properties of PSS/IL composite membranes are investigated including proton conductivity. The proton conductivity of PSS of 31.99mol% sulfonation level is obtained about 1.841×10-2S/cm which is in the same magnitude of order as the commercial Nafion membrane(9.63×10-2 S/cm). At 80℃, the proton conductivity of Nafion membrane decreases to 1.85×10-2 S/cm because of the loss of water. However, when temperature is increased from ambient temperature to 80℃, the proton conductivity is enhanced from 3.07×10-2 to 5.56×10-2 S/cm for PSS/EMICl composite membrane, and from 1.77×10-2 to 4.37×10-2 S/cm for PSS/EMICF3SO3 composite membrane. The results imply that the decrease of proton conductivity due to loss of water can be compensated by adding ILs into PSS membrane. The dissociation of ILs might be the major effect for enhancement of proton conductivity of composite membrane. Membrane electrode assembly(MEA) is manufactured by hot-pressing composite membrane in-between two catalytical electrodes. The performance of single fuel cell is carried out using H2/O2 as fuel. The maximum power density of PSS/EMICF3SO3 membrane-based MEA is found to be 43.7% higher than that found in PSS membrane-based MEA. The results suggest that PSS blended with ionic liquids can indeed improve the performance of MEA. The performance of fuel cells with various PSS/IL composite membranes will be explored.

混摻離子液體之磺酸化聚苯乙烯於質子交換膜式燃料電池之應用 = Sulfonated Polystyrene Impregnated with Ionic Liquids as Proton Exchange Membranes for the Application in Fuel Cells
陳, 永達

混摻離子液體之磺酸化聚苯乙烯於質子交換膜式燃料電池之應用 = Sulfonated Polystyrene Impregnated with Ionic Liquids as Proton Exchange Membranes for the Application in Fuel Cells / 陳永達撰 - [高雄市] : 撰者, 2013[民102]. - 129面 ; 圖，表 ; 30公分.
參考書目：面105-117103年12月16日公開.
磺酸化聚苯乙烯Sulfonated Polystyrene

混摻離子液體之磺酸化聚苯乙烯於質子交換膜式燃料電池之應用 = Sulfonated Polystyrene Impregnated with Ionic Liquids as Proton Exchange Membranes for the Application in Fuel Cells
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330 $a 本研究主要為將離子液體（Ionic liquids）混摻於磺酸化聚苯乙烯中。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31.99 mol%以上（1.841×10-2 S/cm）即可達到商用質子交換膜NafionR（9.63×10-2 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3.07×10-3 S/cm提升至5.56×10-2 S/cm，以及PSS/EMICF3SO3可從1.77×10-2 S/cm提升至4.37×10-2 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以兩片觸媒電及夾住，進行熱壓，而組裝成膜電極組（Membrane Electrode Assembly，MEA），通入H2/O2測試其電池效能，顯示PSS/EMICF3SO3複合薄膜之最大電池功率密度與相同磺酸化程度之磺酸化聚苯乙烯比較下，有43.7%的提升。結果得知混摻離子液體之磺酸化聚苯乙烯的確可改善膜電極組之效能。測試不同離子液體混摻磺酸化聚苯乙烯所組裝的膜電極組之效能，以進行研究與探討。 The subject of this study is sulfonated polystyrene (PSS) impregnated with ionic liquids (ILs) as PEM for the application in fuel cells. PS is sulfonated by acetyl sulfate. The PSS/IL composite membranes are prepared by solution casting of PSS/ILs solutions. The characteristic properties of PSS/IL composite membranes are investigated including proton conductivity. The proton conductivity of PSS of 31.99mol% sulfonation level is obtained about 1.841×10-2S/cm which is in the same magnitude of order as the commercial Nafion membrane(9.63×10-2 S/cm). At 80℃, the proton conductivity of Nafion membrane decreases to 1.85×10-2 S/cm because of the loss of water. However, when temperature is increased from ambient temperature to 80℃, the proton conductivity is enhanced from 3.07×10-2 to 5.56×10-2 S/cm for PSS/EMICl composite membrane, and from 1.77×10-2 to 4.37×10-2 S/cm for PSS/EMICF3SO3 composite membrane. The results imply that the decrease of proton conductivity due to loss of water can be compensated by adding ILs into PSS membrane. The dissociation of ILs might be the major effect for enhancement of proton conductivity of composite membrane. Membrane electrode assembly(MEA) is manufactured by hot-pressing composite membrane in-between two catalytical electrodes. The performance of single fuel cell is carried out using H2/O2 as fuel. The maximum power density of PSS/EMICF3SO3 membrane-based MEA is found to be 43.7% higher than that found in PSS membrane-based MEA. The results suggest that PSS blended with ionic liquids can indeed improve the performance of MEA. The performance of fuel cells with various PSS/IL composite membranes will be explored.
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