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博碩士論文 etd-0911107-115532 詳細資訊
Title page for etd-0911107-115532
論文名稱
Title
以金屬網壓印法製作特殊結構之PEMFC電極的探討
The Study on the Fabrication of a PEMFC Electrode by the Stamping Method
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
77
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2007-07-30
繳交日期
Date of Submission
2007-09-11
關鍵字
Keywords
壓印法、觸媒、燃料電池、撥水柱狀微結構
fuel cell, stamping method, hydrophobic pillared micro structures (HMPS), catalyst
統計
Statistics
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中文摘要
先前研究提升燃料電池的性能可以從觸媒的利用率著手。可是因為製作撥水柱狀微結構的過程花費太多的時間,所以本研究希望發展出快速有效的製作方法,以增加反應表面積與增加觸媒利用率。
本實驗利用金屬網壓印法製作的特殊結構增加其反應表面積。使用線徑35μm,網目70μm × 70μm的金屬網,壓力300kg/cm2和500kg/cm2的條件製作壓印結構增加反應表面積。
當反應表面積約增加了27 %,電池性能也約增加了27 %;而當反應表面積約增加了36 %,電池性能也約增加了36 %。所以電池性能的增加與反應表面積的增加幾乎相符合。
此壓印結構的方法在製作過程中節省了許多時間。另外,在本實驗陰極的觸媒量減半,燃料電池的性能並沒有很明顯的下降或減半,因此提升了觸媒的利用率。
Abstract
Before studying to increase the catalyst utilization is one way to improve the performance of a fuel cell. But because it wastes a lot of time on making the hydrophobic pillared micro structures (HMPS) process. So this study aims to develop a fast and effective manufacturing method in order to increase the reaction surface area and catalyst utilization. The experiment has used the metal mesh stamping method to make the specific structure so as to increase the reaction surface area. The size of the metal mesh was the line path 35μm, and the net square 70μm*70μm. The pressure was 300kg/cm2 and 500kg/cm2 that made the stamping structure in order to increase the reaction surface area. When the reaction surface area nearly increased 27 %, the performance also nearly increased 27 %; And when the reaction surface area nearly increased 36 %, the performance also nearly increased 36 %. So the increment of its performance nearly accorded with the increment of the reaction surface area. This method has saved a lot of time in the production process. Furthermore, the catalyst loading of cathode is halved in this experiment, the performance of fuel cell have no obviously decreased or reduced by half. As a result, the utilization of catalyst is raised.
目次 Table of Contents
目錄……………………………………………………………………….I
圖目錄…………………………………………………………………..IV
表目錄…………………………………………………………………..IV
論文摘要(中文)……………………………………………………….VII
論文摘要(英文)……………………………………………………...VIII
第一章 緒論……………………...………………….………….….1
1.1 前言…………………………………………………………….1
1.2 燃料電池的特性…....………..…………………………..…….2
1.3 燃料電池的種類…………..………………………………..….4

第二章 質子交換膜燃料電池與研究目的之介紹….….........7
2.1 工作原理……………..……………………..……………….......7
2.2 質子交換膜燃料電池的結構…………..…………………..….8
2.2.1質子交換膜……………………………………………..…8
2.2.2電極……………………...……………………………..….9
2.2.2.1陽極電極……………………………………………….10
2.2.2.2陰極電極……………………………………………….11
2.2.3催化劑………….…..…………………………………….11
2.2.4雙極板與流場……………………………………………13
2.3 質子交換膜燃料電池的反應……………………….………..14
2.4 研究目的與動機...................................................................... 14
2.5 文獻回顧..............................………………….…………..…..15

第三章 實驗前的準備與介紹............…………….….…….….24
3.1 實驗的材料………………………………..……….....………24
3.2 實驗的設備……………….………………...…….…………..25
3.3 MEA製程的相關步驟……………...…………….….………..27
3.3.1質子交換膜的處理…………………..………..................27
3.3.2 MEA的熱壓......................................................................28
3.4 電池性能的量測……..……………………………………….29
3.4.1電池的規格……………………………………..………..29
3.4.2燃料氣體………………………………………..………..29
3.4.3電池陰極排水裝置…………………..…………………..30
3.4.4 性能的量測……………………………………………..30

第四章 壓印結構的製作與實驗結果………..….…………....32
4.1 壓印結構電極的製作………………...………….…….…......32
4.1.1碳布撥水碳層的處理..…………………………………..32
4.1.2撥水壓印結構的製作過程………………………………33
4.1.3催化層的製作……………………………………………34
4.2 實驗結果……………………………………………………...35

第五章 結論與建議............................................................……...40
5.1 結論…………………………………................………...........40
5.2 建議…………………................................................………...41
參考文獻…………………………………………………………..…....42
參考文獻 References
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