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研究生:徐豪廷
研究生(外文):Hao-Ting Hsu
論文名稱:製備直接甲酸燃料電池Pd-Mn/C奈米陽極觸媒之研究
論文名稱(外文):Pd-Mn/C Anodic Nano Catalysts For Formic Acid Electro-oxidation
指導教授:王振熙
指導教授(外文):Zhen-Xi Wang
學位類別:碩士
校院名稱:義守大學
系所名稱:化學工程學系暨生物技術與化學工程研究所
學門:工程學門
學類:化學工程學類
論文種類:學術論文
論文出版年:2015
畢業學年度:103
語文別:中文
論文頁數:89
中文關鍵詞:化學還原法甲酸電氧化直接甲酸燃料電池Pd觸媒Mn觸媒
外文關鍵詞:Chemical reduction methodFormic acidElectro-oxidationDFAFCsPdMn catalysts
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直接甲酸燃料電池引起廣泛的關注,陽極催化劑是研究的關鍵,利用化學還原法製備Pdx-Mny/C奈米微粒,擔載在碳黑上製備甲酸燃料電池陽極觸媒,並以雙合金觸媒加強催化效應,證實雙合金觸媒形成有助改善觸媒特性。
研究過程中,催化劑的合成,配製最佳比例Pdx-Mny/C奈米合金製備碳黑擔載觸媒,氧化甲酸發現其雙合金觸媒活性比單金屬Pd擔載在碳黑觸媒還要高。
在電化學氧化反應試驗中(CO-stripping、氫氣電吸附),分析觸媒材料在甲酸電解液進行氧化還原時的特性,CO氧化測試來評估觸媒之活性,結果證明適度添加Mn於Pd/C 觸媒可降低CO吸附能力,並提昇氧化甲酸時的直接路徑,及運用XRD分析鑑定合成奈米觸媒材料之結構。


Direct formic acid fuel cells have attracted considerable attention.The research on anode catalysts for formic Acid Electro-oxidation is crucial for the development of DFAFCs.
In this thesis,we prepared carbon-supported Pdx-Mny catalysts through chemical reduction method for the direct formic acid fuel cells .Bimetal solid solution to look forward to enhance the catalysts properties of catalysts.In this study also confirmed the formation of bimetal solid solution help to improve the catalysts properties.
In the course of the study,for the catalysts synthesis,we look forward electrocatalytic activities of the carbon-supported Pdx-Mny catalysts with suitable atomic ratio of Pd and Mn for the oxidation of formic acid are better than that of the Pd/C catalyst.
In the electrochemical oxidation experiment CO-stripping and hydrogen electroadsorption analyze the redox properties of catalysts material in acid electrolyte. CO oxidation test will be executed to examine the catalysts activity of catalysts.
The enhancement of activity is attributed to the suitable addition of Mn which can promote the electro-oxidation of formic acid through direct pathway by decreasing the adsorption strength of CO and the structures of nano catalysts analyzed by X-ray diffraction patterns.


中文摘要.Ⅰ
英文摘要.Ⅱ
誌謝.Ⅲ
目 錄.Ⅳ
圖目錄.Ⅶ
表目錄.Ⅸ
第一章 緒論.1
1.1 前言.1
1.2 燃料電池之簡介.3
1.2.1 燃料電池之歷史.3
1.2.2 燃料電池的優點.4
1.2.3 燃料電池的分類.5
1.3 直接甲酸燃料電池.9
1.4 陽極觸媒電氧化甲酸.13
1.4.1 Pt-M 觸媒.. 13
1.4.2 提升甲醇催化活性.15
1.4.3 Pt/C 觸媒.16
1.4.4 Pd/C 觸媒與Pd-M/C 觸媒.17
1.5 化學還原法之優點.18
1.6 研究動機與目的.20
第二章 實驗原理.21
2.1 觸媒製備方式之簡述.21
2.1.1 化學還原法.21
2.1.2 共沈澱法.22
2.1.3 含浸法.22
2.1.4 微乳化法.23
2.1.5 膠體法.23
2.1.6 觸媒製備溫度.23
2.2 化學還原法系統製備奈米粒子.25
2.2.1 化學還原法概論.25
2.2.2 化學還原法製備奈米粒子.28
2.3 電化學反應系統簡介.29
2.3.1 電化學反應.29
2.3.2 電化學反應系統.30
2.3.3 電化學反應程序.30
2.4 電化學活性表面積 (Electrochemical active area).32
2.5 電化學氧化甲酸 (Electrochemical oxidation of
fomic acid).37
2.6 X-光繞射分析(X-Ray Diffraction, XRD)基本原理.39
第三章 實驗方法.42
3.1 實驗藥品.42
3.2 實驗儀器.43
3.3 實驗樣品製備.44
3.3.1 製備20wt% Mn 擔載在碳黑(Vulcan XC-72)觸媒.44
3.3.2 製備20wt% Pd 擔載在碳黑(Vulcan XC-72)觸媒.45
3.3.3 製備20wt% Pd-Mn 擔載在碳黑(Vulcan XC-72)觸
媒.46
3.3.4 製備20wt% Pd3-Mn 擔載在碳黑(Vulcan XC-72)觸
媒.47
3.3.5 製備20wt% Pd5-Mn 擔載在碳黑(Vulcan XC-72)觸
媒.48
3.4 實驗步驟.49
3.4.1 CO-Stripping測試.49
3.4.2 氫氣電吸附法測試.50
3.4.3 XRD 樣品製備與測試.51
3.4.4 Pdx-Mny/C觸媒製備流程表.51
第四章 結果與討論.53
4.1 化學還原法-奈米粒子陽極觸媒製程探討.53
4.2 CO-stripping 探討觸媒抗CO毒化之能力.54
4.3 氫氣電吸附法測試觸媒之電化學活性面積……………………….59
4.4 XRD 圖譜分析.64
第五章 結論.70
參考文獻.72


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