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以多層奈米碳管/NafionⓇ複合薄膜電聚合3-甲基噻吩並用於電致變色元...

國立高雄大學化學工程及材料工程學系碩士班

以多層奈米碳管/NafionⓇ複合薄膜電聚合3-甲基噻吩並用於電致變色元件與感測器元件之應用 = A study on electropolymerization of 3-methylthiophene on multi-wall carbon nanotube/Nafion® composite as a use for electrochromic device and sensing device

紀錄類型:	書目-語言資料,印刷品 : 單行本
並列題名:	A study on electropolymerization of 3-methylthiophene on multi-wall carbon nanotube/Nafion® composite as a use for electrochromic device and sensing device
作者:	李政緯,
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:	117面圖，表 : 30公分;
標題:	多層奈米碳管
標題:	carbon nanotube
電子資源:	http://handle.ncl.edu.tw/11296/ndltd/21582931025048812136
摘要註:	本研究利用多層奈米碳管/Nafion修飾ITO電極，透過定電位沉積法聚合3-甲基噻吩 ( poly(3-methylthiophene), P3MT )薄膜，並透過循環伏安法檢視所得聚3-甲基噻吩薄膜，發現薄膜沉積厚度隨著電極表面多層奈米碳管含量增加而提升，微結構分析發現，多層奈米碳管修飾電極對於聚3-甲基噻吩沉積效果有明顯助益。在單極薄膜性質研究中，聚3-甲基噻吩元件於操作電位±2V改變下，薄膜會有紅、藍色之變換性質，其中當多層奈米碳管修飾ITO電極之薄膜固含量為0.03 wt %，於電位1V下便有顏色變化情形，在長期穩定性操作，以著、褪色電位為±2V下，於固定波長為502 nm (λmax)時，具有 18 %之穿透度變化，且在100圈之連續階梯電位操作僅衰退22.8 %。另外，透過聚(3,4-乙烯基二氧噻吩) 摻雜聚(苯乙烯磺酸鹽) ( PE-DOT-PSS)作為輔助電極，結合P3MT電極組裝成互補式電致變色元件，研究發現透過輔助電極可提升了最大光學對比，其中當多層奈米碳管修飾ITO電極之薄膜固含量為0.03 wt %，鍍製P3MT於電量30 mC下，為本研究之最佳操作條件。該元件於±2 V長時間穩定操作，固定波長 (λmax = 670nm ) 下具有34.5 %之穿透度變化，且在100圈之連續階梯電位操作只衰退14.3%。在生物感測元件之研究方面，以多層奈米碳管/Nafion做為生物活性層，進行多巴胺與尿酸生物分子感測，相較於其他組成之電極有較良好之感測能力，並於多成份系統中，具有良好的分子辨識能力與感測能力。 In this study, 3-methylthiophene (3MT) was electrochemically polymerized on the carbon nanotube (CNT)/Nafion® composite-modified ITO electrode to form poly(3-methylthiophene) (P3MT) for uses in electrochromic device and sensing device. Thickness of the P3MT film was found to increase with increasing CNT content in the composite film via cyclic voltammetric analysis. For single-layer electrochromic device, color of the P3MT film was found to change from light red to deep blue for voltage change from -2V to 2V. The composite-modified electrode containing 0.03 wt% CNT exhibited a color change at 1 V. In long-term stability test, the maximum optical attenuation (△T%) at 502 nm was 18% and the △T remained 77.2% after 100 repeated cycles. Since poly(3,4-ethylenedioxythiophene) (PEDOT) is an ideal cathodic electrochromic material known for its high electrochromic properties, PEDOT was used with P3MT to make dual-layer electrochromic device. The composite-modified ITO electrode containing 0.03 wt% CNT and coating with P3MT by 30 mC exhibited 34.5% transmittance at λmax 670nm and, in long-term stability test, the △T remained 85.7% after 100 repeated cycles. For sensing device, the results found that, in the composite-modified electrode combining the advantages of poly(3-methylthiophene), CNT with Nafion exhibited dramatic electrocatalytic effect on the oxidation of dopamine (DA) and uric acid (UA) leading to a significant enhancement of the current response. Moreover, the interferences of ascorbic acid (AA) were effectively diminished. This composite-modified ITO electrode could thus be applied to the determination of DA and UA in the presence of AA.

以多層奈米碳管/NafionⓇ複合薄膜電聚合3-甲基噻吩並用於電致變色元件與感測器元件之應用 = A study on electropolymerization of 3-methylthiophene on multi-wall carbon nanotube/Nafion® composite as a use for electrochromic device and sensing device
李, 政緯

以多層奈米碳管/NafionⓇ複合薄膜電聚合3-甲基噻吩並用於電致變色元件與感測器元件之應用 = A study on electropolymerization of 3-methylthiophene on multi-wall carbon nanotube/Nafion® composite as a use for electrochromic device and sensing device / 李政緯撰 - [高雄市] : 撰者, 民99[2010]. - 117面 ; 圖，表 ; 30公分.
參考書目：面.
多層奈米碳管carbon nanotube

以多層奈米碳管/NafionⓇ複合薄膜電聚合3-甲基噻吩並用於電致變色元件與感測器元件之應用 = A study on electropolymerization of 3-methylthiophene on multi-wall carbon nanotube/Nafion® composite as a use for electrochromic device and sensing device
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330 $a 本研究利用多層奈米碳管/Nafion修飾ITO電極，透過定電位沉積法聚合3-甲基噻吩 ( poly(3-methylthiophene), P3MT )薄膜，並透過循環伏安法檢視所得聚3-甲基噻吩薄膜，發現薄膜沉積厚度隨著電極表面多層奈米碳管含量增加而提升，微結構分析發現，多層奈米碳管修飾電極對於聚3-甲基噻吩沉積效果有明顯助益。在單極薄膜性質研究中，聚3-甲基噻吩元件於操作電位±2V改變下，薄膜會有紅、藍色之變換性質，其中當多層奈米碳管修飾ITO電極之薄膜固含量為0.03 wt %，於電位1V下便有顏色變化情形，在長期穩定性操作，以著、褪色電位為±2V下，於固定波長為502 nm (λmax)時，具有 18 %之穿透度變化，且在100圈之連續階梯電位操作僅衰退22.8 %。另外，透過聚(3,4-乙烯基二氧噻吩) 摻雜聚(苯乙烯磺酸鹽) ( PE-DOT-PSS)作為輔助電極，結合P3MT電極組裝成互補式電致變色元件，研究發現透過輔助電極可提升了最大光學對比，其中當多層奈米碳管修飾ITO電極之薄膜固含量為0.03 wt %，鍍製P3MT於電量30 mC下，為本研究之最佳操作條件。該元件於±2 V長時間穩定操作，固定波長 (λmax = 670nm ) 下具有34.5 %之穿透度變化，且在100圈之連續階梯電位操作只衰退14.3%。在生物感測元件之研究方面，以多層奈米碳管/Nafion做為生物活性層，進行多巴胺與尿酸生物分子感測，相較於其他組成之電極有較良好之感測能力，並於多成份系統中，具有良好的分子辨識能力與感測能力。 In this study, 3-methylthiophene (3MT) was electrochemically polymerized on the carbon nanotube (CNT)/Nafion® composite-modified ITO electrode to form poly(3-methylthiophene) (P3MT) for uses in electrochromic device and sensing device. Thickness of the P3MT film was found to increase with increasing CNT content in the composite film via cyclic voltammetric analysis. For single-layer electrochromic device, color of the P3MT film was found to change from light red to deep blue for voltage change from -2V to 2V. The composite-modified electrode containing 0.03 wt% CNT exhibited a color change at 1 V. In long-term stability test, the maximum optical attenuation (△T%) at 502 nm was 18% and the △T remained 77.2% after 100 repeated cycles. Since poly(3,4-ethylenedioxythiophene) (PEDOT) is an ideal cathodic electrochromic material known for its high electrochromic properties, PEDOT was used with P3MT to make dual-layer electrochromic device. The composite-modified ITO electrode containing 0.03 wt% CNT and coating with P3MT by 30 mC exhibited 34.5% transmittance at λmax 670nm and, in long-term stability test, the △T remained 85.7% after 100 repeated cycles. For sensing device, the results found that, in the composite-modified electrode combining the advantages of poly(3-methylthiophene), CNT with Nafion exhibited dramatic electrocatalytic effect on the oxidation of dopamine (DA) and uric acid (UA) leading to a significant enhancement of the current response. Moreover, the interferences of ascorbic acid (AA) were effectively diminished. This composite-modified ITO electrode could thus be applied to the determination of DA and UA in the presence of AA.
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610 0 $a 多層奈米碳管 $a 3-甲基噻吩 $a 循環伏安法 $a 電致變色元件 $a 感測元件
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856 7 $z 電子資源 $2 http $u http://handle.ncl.edu.tw/11296/ndltd/21582931025048812136