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  1. NTU Theses and Dissertations Repository
  2. 工學院
  3. 化學工程學系
請用此 Handle URI 來引用此文件: http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/25174
完整後設資料紀錄
DC 欄位值語言
dc.contributor.advisor戴子安(Chi-An Dai)
dc.contributor.authorHung-Wei Linen
dc.contributor.author林泓瑋zh_TW
dc.date.accessioned2021-06-08T06:04:18Z-
dc.date.copyright2011-08-18
dc.date.issued2011
dc.date.submitted2011-08-05
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14. Tatyana A. Bendikov, Thomas C. Harmon, Long-lived solid state perchlorate ion selective sensor based on doped poly(3,4-ethylenedioxythiophene) (PEDOT) films, Analytica Chimica Acta, 551 (2005) 30-36.
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30. Ruangchuay, L.; Sirivat, A.; Schwank, J, Selective conductivity response of polypyrrole-based sensor on flammable chemicals, Reactive and Functional. Polymers, 61 (2004) 11-22.
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32. Nohria, R.; Khillan, R.K.; Su, Y.; Dikshit, R.; Lvov, Y.; Varahramyan, K, Humidity sensor based on ultrathin polyaniline film deposited using layer-by-layer nano-assembly, Sensors and Actuators B-chemical, 114 (2006) 218-222.
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36. Li, B.; Sauve, G.; Iovu, M.C.; Jeffries-El, M.; Zhang, R.; Cooper, J.; Santhanam, S.; Schultz, L.; Revelli, J.C.; Kusne, A.G.; Kowalewski, T.; Snyder, J.L.; Weiss, L.E.; Fedder, G.K.; McCullough, R.D.; Lambeth, D.N, Volatile organic compound detection using nanostructured copolymers, Nano Letters, 6 (2006) 1598-1602.
37. Liu, H.Q.; Kameoka, J.; Czaplewski, D.A.; Craighead, H.G, Polymeric nanowire chemical sensor, Nano Letters, 4 (2004) 671-675.
38. Lavrik, N.V.; DeRossi, D.; Kazantseva, Z.I.; Nabok, A.V.; Nesterenko, B.A.; Piletsky, S.A.;Kalchenko, V.I.; Shivaniuk, A.N.; Markovskiy, L.N, Composite polyaniline/calixarene Langmuir-Blodgett films for gas sensing, Nanotechnology, 7 (1996) 315-319.
39. Bearzotti, A.; Foglietti, V.; Polzonetti, G.; Iucci, G.; Furlani, A.; Russo, M.V, Investigations on the response to humidity of an interdigitated electrode structure coated with iodine doped polyphenylacetylene, Materials Science and Engineering B, 40 (1996) 1-4.
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41. T. Ishihara, K. Kometani, Y. Mizuhara, Y. Takita, A new type of CO-2 gas sensor based on capacitance changes, Sensors and Actuators B-chemical, 5 (1991) 97-102.
42. S.A. Waghuley, S.M.Yenorkar, S.S Yawale, S.P. Yawale, Application of chemically synthesized conducting polymer-polypyrrole as a carbon dioxide gas sensor, Sensors and Actuators B-chemical, 128 (2008) 366-373.
43. S. Neethirajan, M.S. Freund, D.S. Jayas, C. Shafai, D.J. Thomson, N.D.G. White, Development of carbon dioxide (CO2) sensor for garin quality monitoring, Biosystems Engineering, 106 (2010) 395-404.
44. K. Ogura, H. Shiigi, T. Oho, and T. Tonosaki, A CO2 sensor with polymer composites operating at ordinary temperature, Journal of the Electrochemical Society, 147 (2000) 4351-4355.
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47. Xiaochun Xu, Chunshan Song, Bruce G. Miller, and Alan W. Scaroni, Influence of moisture on CO2 separation from gas mixture by a nanoporous adsorbent based on polyethylenimine-modified molecular sieve MCM-41, Industrial & Engineering Chemistry Research, 44 (2005) 8113-8119.
dc.identifier.urihttp://tdr.lib.ntu.edu.tw/jspui/handle/123456789/25174-
dc.description.abstract在此研究中,利用快速成膜氧化聚合法合成3,4-乙烯二氧噻吩,並在3,4-乙烯二氧噻吩膜上利用液滴塗布法塗布支鏈型聚乙烯亞胺薄膜,此[3,4-乙烯二氧噻吩]-[支鏈型聚乙烯亞胺]複合膜成膜在黃金指插式電極上,製作成電阻式二氧化碳氣體感測器。在只有3,4-乙烯二氧噻吩薄膜的情形下,感測器對於二氧化碳沒有出現訊號,隨著添加支鏈型聚乙烯亞胺,此感測器對於1000ppm之二氧化碳感測結果,從原來的沒訊號,增加到3.25%,而且訊號大小與添加支鏈型聚乙烯亞胺的量呈現正比關係,此訊號曲線可利用單一指數函數做最適化分析。此感測器在750 ppm到5500 ppm二氧化碳濃度範圍間,其訊號大小與相對應之二氧化碳濃度呈現線性關係;偵測下限經計算約為97 ppm(在訊號/雜訊=3 之標準下);反應時間(t90)以及恢復時間(t90)分別為1264秒以及接近一小時。在溫度以及溼度效應的實驗中,此感測器在室溫以及高濕度的環境下表現出的訊號最大。在重複使用的測試中,此感測器在重複使用三次後其訊號大小並無明顯的衰退趨勢。最後藉由系統改進,使原本較長的恢復時間(接近一小時)縮短至大約10分鐘。zh_TW
dc.description.abstractIn this Study, 3,4-ethylenedioxythiophene (EDOT) was oxidatively polymerized via in-situ polymerization and then fabricated a branched polyethylenimine (BPEI) film on PEDOT by drop casting. The PEDOT-BPEI sensing film which deposited on a gold interdigitated electrode was used as a resistive type carbon dioxide gas sensor. There is no response of the sensor when the sensing film is only a PEDOT monolayer. With adding BPEI, the response to expose to 1000 ppm carbon dioxide increased from nearly none to a value of 3.25% and the response increased with the increasing amount of BPEI. The response curves of PEDOT-BPEI sensing film could be fitted well with single term of exponential expression. The sensor exhibited linear response behavior to carbon dioxide gas at higher concentration (750-5500 ppm). The limit of detection was 97 ppm (signal/noise = 3). The response time (t90) and recovery time (t90) were recorded to be 1264 s and nearly 1 hour, respectively. In the temperature and humidity tests, it could be observed that the optimum operation condition is room temperature and high relative humidity (RH). The reusability test showed that no obvious decay in response for repeatedly (three times) measurements. The long recovery time of nearly 1 hr was shortened to approximately 10 min by heating the sensor during recovery.en
dc.description.provenanceMade available in DSpace on 2021-06-08T06:04:18Z (GMT). No. of bitstreams: 1
ntu-100-R98524081-1.pdf: 1256784 bytes, checksum: 86f7c20adaf5bf38cc274b5b8730a3da (MD5)
Previous issue date: 2011
en
dc.description.tableofcontents誌謝 I
摘要 II
Abstract III
Contents IV
List of Tables VI
List of Figures VII
Chapter 1 Introduction 1
Chapter 2 Literature Review 3
2.1 Conducting polymer 3
2.1.1 Introduction 3
2.1.2 Synthesis of conducting polymers 3
2.2 PEDOT 5
2.2.1 Introduction 5
2.2.2 Excellent characteristics of PEDOT [19] 6
2.2.3 Synthesis of PEDOT 6
2.3 Conducting polymers in gas sensor applications 9
2.3.1 Introduction 9
2.3.2 Preparation of conducting polymer sensing films 10
2.3.3 Sensing materials 12
2.3.4 Chemiresistors 13
2.3.5 The advantages and disadvantages of using conducting polymers as gas sensors 14
2.4 Conducting polymers as carbon dioxide gas sensors 17
2.4.1 Introduction 17
2.4.2 Carbon dioxide sensor based on polypyrrole [42] 17
2.4.3 Carbon dioxide sensor based on polyaniline boronic acid [43] 19
2.4.4 Carbon dioxide sensor based on emeraldine base-polyaniline / poly(vinyl alcohol) [44] 21
Chapter 3 Experiment 24
3.1 Experiment materials 24
3.2 Experiment instruments 26
3.3 Experiment procedure 27
3.4 Experiment methods 28
3.4.1 Preparation of the PEDOT-BPEI composite film 28
3.4.2 Preparation of the PEDOT-TCA-BPEI composite film 29
3.4.3 FT-IR 29
3.4.4 AFM 30
3.4.5 UV-vis 30
3.4.6 Gas sensing 30
Chapter 4 Result and Discussion 33
4.1 Material character properties 33
4.1.1 FT-IR 33
4.1.2 AFM 33
4.1.3 UV-vis 34
4.2 Response of the PEDOT-BPEI sensing film to CO2 gas 35
4.3 Response of the PEDOT-TCA-BPEI sensing film to CO2 gas 35
4.4 Proposed mechanism 36
4.5 Transit responses of PEDOT-BPEI sensing film 38
4.6 Gas sensing characteristics 39
4.7 Temperature effect and humidity effect 40
4.8 Selectivity and reusability test 42
4.9 System improvement experiment 43
Chapter 5 Conclusions 44
Chapter 6 References 46
dc.language.isoen
dc.title以原位聚合法合成導電高分子複合膜
應用於二氧化碳氣體感測器之研究
zh_TW
dc.titleIn-Situ Synthesis of Conducting Polymer
Composite Film as a CO2 Gas Sensor
en
dc.typeThesis
dc.date.schoolyear99-2
dc.description.degree碩士
dc.contributor.oralexamcommittee何國川(Kuo-Chuan Ho),張培仁(Pei-Zen Chang),施文彬(Wen-Pin Shih)
dc.subject.keyword導電高分子,3,4-乙烯二氧噻,吩,二氧化碳氣體感測器,zh_TW
dc.subject.keywordconducting polymer,PEDOT,CO2 gas sensor,en
dc.relation.page80
dc.rights.note未授權
dc.date.accepted2011-08-05
dc.contributor.author-college工學院zh_TW
dc.contributor.author-dept化學工程學研究所zh_TW
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