文化大學機構典藏 CCUR:Item 987654321/39717
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 47249/51115 (92%)
造访人次 : 14137203      在线人数 : 542
RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜寻范围 查询小技巧:
  • 您可在西文检索词汇前后加上"双引号",以获取较精准的检索结果
  • 若欲以作者姓名搜寻,建议至进阶搜寻限定作者字段,可获得较完整数据
  • 进阶搜寻
    主页登入上传说明关于CCUR管理 到手机版


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://irlib.pccu.edu.tw/handle/987654321/39717


    题名: 利用1-(4-羧基苯基)-2,5-二甲基-1H-吡咯摻入雙離子之濕度感測器特性探討
    Electrical and humidity-sensing properties of 1-(4-carboxylic acid phenyl)-2,5-dimethyl-1H-pyrrole doped with both KOH and K2CO3 salts
    作者: 許閎棋
    贡献者: 化學系應用化學碩士班
    关键词: 濕度感測器
    N-取代吡咯衍生物
    Humidity sensor
    N-substituted pyrrole derivative
    日期: 2018
    上传时间: 2018-04-30 16:01:56 (UTC+8)
    摘要: 本研究為製備1-(4-羧基苯基)-2,5-二甲基-1H-吡咯,並將此材料本身和加入不同電解質後之複合材料進行比較,探討所摻入離子對於濕度感測之差異性。當材料摻入強電解質LiOH、NaOH、KOH以及弱電解質K2CO3後,由於其解離常數以及所解離出的離子皆會有所不同,在高濕低濕時會有不同的反應情況,會對濕度感測產生不同之影響性質。而就實驗結果顯示,當1-(4-羧基苯基)-2,5-二甲基-1H-吡咯摻入0.1 M KOH以及0.05 M K2CO3後,會因K+ 離子的水合能力以及強、弱電解質於高、低濕時的反應特性,材料整體對於濕度感測而言,會具有靈敏度高、線性良好、濕滯情況佳的反應特性。而利用阻抗頻譜分析圖探討此濕度材料的傳導機制,由阻抗頻譜分析的結果可知在低濕狀態下為電子傳導機制,在高濕狀態下為離子傳導為主。就整體而言,1-(4-羧基苯基)-2,5-二甲基-1H-吡咯摻入KOH以及K2CO3可作為一種開發新型電阻式濕度感測元件的新穎性材料。
    Novel impedance-type humidity sensors were made of 1-(4-carboxylic acid phenyl)-2,5-dimethyl-1Hpyrrole that was doped with KOH and K2CO3 salts. The humidity-sensing properties of 1-(4-carboxylic acid phenyl)-2,5-dimethyl-1H-pyrrole were improved by doping with two alkali salts (KOH and K2CO3), whose dissociation constants differed greatly from each other. The electrical properties of 1-(4-carboxylic acid phenyl)-2,5-dimethyl-1H-pyrrole that was doped with KOH or a mixture of KOH and K2CO3 were examined in detail and found to be functions of relative humidity (RH).Additionally,the effects ofthe salts on the sensing properties (linearity and sensitivity) were elucidated. The sensor that was made of the 1-(4-carboxylic acidphenyl)-2,5-dimethyl-1H-pyrrole/KOH/K2CO3 composite film exhibited favorable impedance, high sensitivity, good linearity, small hysteresis, a short response/recovery time, a weak dependence on temperature and high long-term stability over the humidity range studied. The sensing mechanismofthe 1-(4-carboxylic acidphenyl)-2,5-dimethyl-1H-pyrrole/KOH/K2CO3 compositefilmwas elucidated using impedance plots.
    显示于类别:[化學系所] 博碩士論文

    文件中的档案:

    档案 描述 大小格式浏览次数
    index.html0KbHTML205检视/开启


    在CCUR中所有的数据项都受到原著作权保护.


    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回馈