臺灣博碩士論文加值系統

第一部分實驗利用電化學共沉積聚苯胺/氧化鉬於奈米碳球上應用在超級電容，利用鄰氨基苯磺酸(OSAN)與苯胺(AN)電聚合自摻雜型聚苯胺(SPANI)，並加入鉬酸鈉，進行共沉積聚苯胺/氧化鉬電極，於1 M H2SO4電解液中進行電化學分析，探討其比電容性能。利用定電流充放電(GCD)可以得知放電時間，得到功率密度、能量密度及循環壽命，實驗結果顯示AN/OSAN=1加入80 mM的鉬酸鈉，進行共沉積，製備SPANI/MoO3，具有最佳的比電容325.13 Fg-1。在電流密度5 Ag-1下，循環充放電4000次，電容保存率為65.03 %。
第二部分實驗利用電化學共沉積氧化石墨烯/聚苯胺/氧化鉬於奈米碳球上應用在超級電容，在SPANI/MoO3共沉積過程中添加氧化石墨烯，進行共沉積，製備GO/SPANI/MoO¬¬3，實驗結果顯示添加氧化石墨烯可以增加比電容及循環壽命，比電容為400.9 Fg-1，在電流密度5 Ag-1下，循環充放電4000次，電容保存率為84.79 %

In the first part, electrochemical co-deposition of polyaniline (SPANI)/molybdenum oxide (MoO3) on carbon nanoparticles was applied to supercapacitors. The self-doping polyaniline (SPANI) was carried out by electropolymerization of o-aminobenzenesulfonic acid (OSAN) and aniline (AN). Sodium molybdate was added into the above reaction solution, to co-deposit a polyaniline/molybdenum oxide composite electrode. Electrochemical analysis was employed to investigate the specific capacitance in 1M H2SO4 electrolyte. The discharge time, the power density, energy density, and cycle life can be obtained by using galvanostatic charge and discharge (GCD). Experimental results showed that the prepared SPANI/MoO3 electrode using the composition of AN/OSAN=1 coupled with 80 mM sodium molybdate has the optimal specific capacitance of 325.13 Fg-1 at charge-discharge current density of 1 Ag-1. Under the current density of 5 Ag-1, the capacitance retained 65.03 % of original value after charging and discharging 4000 times.

In the second part, electrochemical co-deposition of graphene oxide (GO)/polyaniline (SPANI)/molybdenum oxide (MoO3) on carbon nanoparticles was applied to supercapacitors. Sodium molybdate and graphene oxide was added into the o-aminobenzenesulfonic acid (OSAN) and aniline (AN) solution to co-deposit a graphene oxide/polyaniline/molybdenum oxide composite electrode. Electrochemical analysis was employed to investigate the specific capacitance in 1 M H2SO4 electrolyte. The discharge time, the power density, energy density, and cycle life can be obtained by using galvanostatic charge and discharge (GCD). Experimental results showed that the addition of GO in the GO/SPANI/MoO3 electrode can increase the specific capacitance and cycle life. It has the optimal specific capacitance of 400.9 Fg-1 at charge-discharge current density of 1 Ag-1.Under the current density of 5 Ag-1, the capacitance retained 84.79 % of original value after charging and discharging 4000 times.

摘要1
Abstract2
第一章 理論及文獻回顧4
1.1電化學原理及分析技術4
1.1.1電化學系統4
1.1.2電雙層原理7
1.1.3法拉第與非法拉第程序9
1.1.4超級電容電化學分析技術9
1.1.4.1循環伏安法11
1.1.4.2計時電位法[6]14
1.1.4.3電化學阻抗分析[7]17
1.2超級電容27
1.2.1超級電容器的結構31
1.2.1.1儲能機制分類31
1.2.1.2電雙層電容器33
1.2.1.3擬電容器35
1.2.2電極材料35
1.3文獻回顧37
1.4研究目的39
第二章 研究方法與步驟42
2.1實驗藥品42
2.2實驗儀器43
2.3實驗流程及製備方法45
2.3.1石墨紙集流器處理45
2.3.2奈米碳球電極製作45
2.3.3 Hummer法製備氧化石墨烯45
2.4 電沉積聚苯胺/氧化鉬超級電容實驗46
2.4.1 聚苯胺電極46
2.4.2 氧化鉬電極46
2.4.3 聚苯胺/氧化鉬電極47
2.5 氧化石墨烯/聚苯胺/氧化鉬超級電容實驗47
2.5.1 氧化石墨烯/聚苯胺電極47
2.5.2 氧化石墨烯/氧化鉬電極48
2.5.3 氧化石墨烯/聚苯胺/氧化鉬電極48
2.6電容元件組裝49
2.7電化學分析50
2.7.1循環伏安法51
2.7.2定電流充放電51
2.7.3交流阻抗測試51
第三章 聚苯胺/氧化鉬超級電容52
3.1 循環伏安法共沉積52
3.2場發射掃描式電子顯微鏡(FE-SEM)54
3.3二次離子質譜儀(SIMS)57
3.4 XPS光譜分析58
3.5 Raman光譜測試61
3.6 電化學分析63
3.6.1循環伏安法(CV)63
3.6.2定電流充放電(GCD)65
3.6.3 交流阻抗測試(EIS)69
3.7 聚苯胺/氧化鉬對稱元件71
3.8結論72
第四章 氧化石墨烯/聚苯胺/氧化鉬超級電容73
4.1 循環伏安法共沉積73
4.2場發射掃描式電子顯微鏡(FE-SEM)75
4.3二次離子質譜儀(SIMS)78
4.4 XPS光譜分析79
4.5 Raman光譜測試82
4.6 電化學分析84
4.6.1循環伏安法(CV)84
4.6.2定電流充放電(GCD)85
4.6.3 交流阻抗測試(EIS)87
4.7氧化石墨烯/聚苯胺/氧化鉬對稱元件89
4.8 結論90
第五章 總結91
第六章 參考文獻92

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