臺灣博碩士論文加值系統

隨著人口增長，環境的破壞以及能源的需求逐年加劇。本研究
利用農業及工業廢棄物的蒜皮與碳纖維製作儲能元件。在提升廢棄
物的附加價值的同時，也對能源領域做出貢獻。本研究利用高溫裂
解法將農業廢棄物中的蒜皮合成碳量子點，並探討碳量子點的添加
量對凝膠電解質的影響。此外，本研究亦利用研磨及碳纖維沉積方
式將工業用碳纖維剩餘料製備成超級電容器的電極。並探討此電極
在不同的掃描速下，其比電容值、能量密度與功率密度。在0.02V/s
掃描速率下的回收碳纖維電極具有最高的比電容值、能量密度和功
率密度，分別約為155 F/g，10Wh/kg 與4047 W/kg。隨後並將廢棄
的碳纖維製備的電極、添加蒜皮碳量子點的凝膠電解質與隔膜三
者，以三明治結構組立成超級電容器，在恆電流下經循環充放電
後，測試電容量維持率。在0.20mA 的恆電流下經過2000 次循環充
電放電測試後，其電容量仍保有初始值的96%。

As the population grows, the destruction of the environment and the
requirement for energy are increasing year by year. Garlic peels and
carbon fiber from agricultural and industrial wastes are used to prepare
energy storage devices in this study. Carbon quantum dots (CQDs) were
prepared from garlic peels by high-temperature pyrolysis method, and the
influence of CQDs adding to the gel electrolyte was investigated. In
addition, the electrodes of supercapacitors were prepared by grinding and
deposition form the industrial carbon fiber residues. The specific
capacitance value, energy density and power density of this electrode at
different scanning rates are discussed. The recycled carbon fiber electrode
has the highest specific capacitance, energy density, and power density,
which are 155 F/g, 10Wh/kg, and 4047 W/kg, respectively, at a scan rate
of 0.02 V/s. Then, the electrodes made of discarded carbon fiber, the gel
electrolyte with garlic CQDs, and a separator were assembled into a
sandwich structure to form supercapacitors. After cycling charge and
discharge at constant current, the capacitance maintenance rate is tested.
After 2000 cycles of charge and discharge tests at a constant current of
0.20mA, its capacitance still retains 96% of its initial value.

中文摘要………………………………………………………….. i
英文摘要………………………………………………………….. ii
誌謝…………………………………………………………..iii
目錄…………………………………………………………..iv
表目錄………………………………………………………….. v
圖目錄………………………………………………………….. vi
第一章緒論…………………………………………………….. 1
1.1 前言…………………………………………………....... 1
1.2 專利檢索………………………………………………... 3
第二章實驗……………………………………………………... 5
2.1 樣品製備………………………………………………... 5
2.1.1 蒜皮碳量子點的製備…...……………………………… 5
2.1.2 凝膠電解質之製備………………………...………….... 5
2.1.3 碳纖維粉末的製備….………………………………….. 5
2.1.4 生物可分解性基板的製備….…………………………..5
2.1.5 電極的製備……………………………………………...6
2.1.6 超級電容器之組立與封裝……………………………...6
2.2 樣品分析…..…………………………………………… 7
2.2.1 碳量子點分析………………………………………….. 7
2.2.2 凝膠電解質電化學特性分析………………………….. 7
2.2.3 電極電化學特性分析…………………………………. 7
2.2.4 超級電容器電化學特性分析…………………………. 8
第三章結果與討論……………………………………….......... 9
3.1 蒜皮碳量子點的表面分析結果……………………....... 9
3.2 蒜皮碳量子點的UV-VIS 與紅外光譜分析結果…….... 9
3.3 蒜皮碳量子點的X 射線光電子能譜分析結果……….. 9
3.4 添加蒜皮碳量子點對凝膠電解質的比電容影響….. …. 10
3.5 添加碳量子點對凝膠電解質的等效串聯電阻影響….. 10
3.6 甲基纖維素基碳纖維電極之循環伏安分析….. ….. ….. 11
3.7 超級電容器之電化學分析…………………….. ….. ….. 12
第四章結論………………………………………………... 13
第五章未來展望………………………………………………... 14
參考文獻…………………………………………………………... 15
英文論文…………………………………………………………... 22

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