以聚乙烯乙烯醇製備分子拓印電極並應用於葉綠素及酵素燃料電池 = Prep...
史經平

 

  • 以聚乙烯乙烯醇製備分子拓印電極並應用於葉綠素及酵素燃料電池 = Preparation of Molecularly Imprinted Poly(ethylene-co-vinyl alcohol) Coated Electrodes for Chlorophyll and Enzymatic Fuel Cells
  • 紀錄類型: 書目-語言資料,印刷品 : 單行本
    並列題名: Preparation of Molecularly Imprinted Poly(ethylene-co-vinyl alcohol) Coated Electrodes for Chlorophyll and Enzymatic Fuel Cells
    作者: 史經平,
    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: 2015[民104]
    面頁冊數: 243面圖,表 : 30公分;
    標題: 葉綠素
    標題: Chlorophyll
    附註: 109年11月18日公開
    附註: 參考書目:面202-221
    摘要註: 燃料電池將燃料中之電子轉移至負載形成電能,經氧化還原反應後產物為水,具有低汙染性與應用範圍廣等優點,但高成本及低效率仍為其目前最大之門檻,因此嘗試將目標物固定於電極上,如此便能較穩定地進行催化作用。本論文利用分子拓印高分子之方式,以最佳拓印參數:44%及32%之乙烯莫耳比與0.1%重量百分濃度的乙烯乙烯醇共聚合物拓印葉綠素、葡萄糖氧化酵素及漆氧化酵素於白金電極,再細部探討模版性質及製程之改變趨勢,如:表面粗糙度會因洗滌後提高、顯微影像中能觀察到拓印孔洞與清洗後模版的氮元素含量降低等。將陰陽二極分別置入拓印目標物的電極後,組裝成燃料電池並量測其電化學性能。比較拓印與未拓印之電極,葉綠素電池最大輸出電壓與功率由0.26、0.46 提升至0.63 V、1.53 mW/m2,效能提升約3.3 倍。酵素電池則由0.20、0.42 提升至0.67 V、1.97 mW/m2,效能提升約4.7 倍,拓印後之電極皆有較佳的輸出表現。證明拓印模版將葉綠素或酵素固定於電極表面,能實現提高燃料電池輸出效率之目標,因為電極吸附葉綠素或酵素而縮短其電子之傳遞路徑。 In this research, chlorophyll and enzymes (Glucose oxidase and Laccase) wereemployed to immobilize on the imprinted surface of poly(ethylene-co-vinylalcohol)(EVAL). EVALs containing different mole ratios of ethylene were then used tocompare the readsorption for the optimization of molecular imprinting. The mostappropriate imprinting parameters of Chlorophyll is 44 mole% 0.1wt% and 32 mole%0.1wt% for enzymes. For confirming with imprint theories, the properties of EVAL films:microstructures, roughness, elements containing were analyzed and compared when beforeand after the processes of removing targets. We found that templates became rougher afterremoving the targets and smoother when rebinding, and on the SEM images can observethe imprinted cavens obviously. Furthermore, the adhesive force of cavens which cause byenzymes is 0.52 nN, higher than 0.39 nN by Chlorophyll. The open circuit voltage (OCV)and power of chlorophyll fuel cells were enhanced from 0.26 V and 0.46 mW/m2 to 0.63 Vand 1.53 mW/m2, increased about 3.3 fold. The enzymatic fuel cells were enhanced from0.20 V and 0.42 mW/m2 to 0.67 V and 1.97 mW/m2, increased 4.7 fold. The results showsthat molecularly imprinted electrodes can increasing the output efficiency of fuel cellssuccessfully.
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310002563958 博碩士論文區(二樓) 不外借資料 學位論文 TH 008M/0019 541208 5021 2015 一般使用(Normal) 在架 0
310002563966 博碩士論文區(二樓) 不外借資料 學位論文 TH 008M/0019 541208 5021 2015 c.2 一般使用(Normal) 在架 0
  • 2 筆 • 頁數 1 •
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