運用氣溶膠技術於能源科技之環境監控與材料製程

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研究生：	孫毓安 Sun, Yu-An
論文名稱：	運用氣溶膠技術於能源科技之環境監控與材料製程 Aerosol Technology for Environmental Monitoring and Synthesis of Energy Material
指導教授：	蔡德豪 Tsai, De Hao
口試委員:	汪上曉 Wong, David Shan-Hill 呂世源 Lu, Shih-Yuan
學位類別：	碩士 Master
系所名稱：	工學院 - 化學工程學系 Department of Chemical Engineering
論文出版年：	2019
畢業學年度：	107
語文別：	中文
論文頁數：	60
中文關鍵詞：	氣溶膠、環境監控、FTIR即時分析、銀、錳氧化物、奈米粒子、超級電容器
外文關鍵詞：	aerosol, environmental monitoring, in-situ FTIR analysis, silver, manganese oxide, nanoparticle, supercpacitor
相關次數：	點閱：2 下載：0
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本研究利用氣溶膠科技應用於能源領域中的兩大部分，一部分對化石燃料燃燒發電技術所生成之氣溶膠作環境監控（針對有害的氣溶膠）；另一部分則是用氣溶膠合成法製備能源材料（針對好的氣溶膠）。在第一部分中，我們結合DMA （氣相奈米粒子流動分析儀）及FTIR（傅立葉紅外光譜儀），建立一創新氣相即時定量分析方式。選用的測試材料有蔗糖及二氧化矽奈米粒子。實驗結果顯示，此方法對於定量分析煙道氣中汙染性的氣溶膠的粒徑分佈、數量及質量濃度是非常有用的。從測量蔗糖及二氧化矽的結果可以得知三個結論。一、前驅物濃度越高，其霧化產生的氣溶膠經DMA獲得之粒子質量濃度越高，呈線性關係。二、前驅物濃度越高，其霧化產生的氣溶膠經FTIR定量分析獲得之官能基峰值面積越高，呈線性關係，並可DMA及FTIR之定量結果獲得一結合的檢量線，作為對照。在第二部分中，我們利用運用氣溶膠合成法製造銀–錳氧化物（Ag-MnOx）和添加十六烷基三甲基溴化銨（CTAB）為模板之銀–錳氧化物（c-Ag-MnOx）奈米複合結構作為超級電容器（SCs）的正極材料。通過氣相蒸發誘導自組裝的方法，銀奈米粒子（Ag NPs）均勻地裝飾在MnOx 奈米粒子團簇的表面上。當Ag前驅物濃度為0.5 wt％時獲得最佳比電容值：Ag-MnOx為118 F g-1，c-Ag-MnOx為154 F g-1在1 A g-1電流密度下。複合奈米材料超級電容性能的增加可以歸因於（1）透過摻雜Ag NP改善了材料的導電度，和（2）透過使用CTAB模板提升了材料的比表面積。本研究中演示的雛型方法是未來製造各種以錳氧化物為基
底的複合奈米結構作為超級電容器電極材料極有潛力的技術。

We demonstrate a systematic study of using aerosol technology in environment monitoring of pollutant aerosol (i.e., “bad” aerosol) and aerosol-based synthesis of energy material (i.e., “good” aerosol). In the first part, we establish a new gas phase in-situ quantitative analytical method, which combines Fourier transform infrared spectrometry (FTIR) and differential mobility analysis (DMA). Sucrose and silica nanoparticle are chosen as the test aerosol materials. The results show that metrology and methodology developed in this study are useful for the characterization of particle size, size distribution, and number and mass concentrations of aerosols on a quantitative basis. The precursor concentration is directly proportionally to total particle mass concentration (by DMA) and the absorption peak area of a specific functional group (by FTIR). We can further collect these two quantitative results to create a combined calibration line for two selected materials. In the second part, A facile, prototype aerosol-based synthetic approach is demonstrated for the fabrication of silver-manganese oxide (Ag-MnOx) and cetyltrimethylammonium bromide (CTAB)-templated silver-manganese oxide (c-Ag-MnOx) hybrid nanostructures as the positive electrode materials of supercapacitors (SCs). Through gas-phase evaporation-induced self-assembly, silver nanoparticles (Ag NPs) are homogeneously decorated on the surface of MnOx NP clusters. An optimal specific capacitance is obtained when the concentration of silver precursor is 0.5 wt%: 118 F g-1 for Ag-MnOx and 154 F g-1 for c-Ag-MnOx at 1 A g-1. The enhanced supercapacitive performance of the hybrid NPs is attributed to (1) the improved electrical conductivity by the incorporation with Ag NPs, and (2) the increased specific surface area by the usage of the CTAB template. The prototype method demonstrated in this study shows a promise for the fabrication of a variety of manganese oxide-based hybrid nanostructures as electrode materials for supercapacitor applications.

摘要..............................I
Abstract.........................II
總目錄...........................III
圖目錄............................V
表目錄...........................VII
第一章  緒論.......................1
1  能源發展概述..................2
2  氣溶膠技術於能源與環境科技的應用.2
3  氣溶膠合成法..................4
4  超級電容器....................7
4.1超級電容器簡介................7
4.2超級電容器能量儲存機制.........7
5  錳氧化物(MnOx)奈米材料........9
5.1 MnOx奈米材料簡介.............9
5.2 影響MnOx材料電容表現之因素..9
6  研究動機.....................11
第二章  實驗方法...................13
1  實驗藥品.....................13
2  實驗儀器.....................14
2.1 氣霧化奈米粒子之合成系統....15
2.2 氣相奈米粒子流動分析儀（DMA）.16
2.3 傅立葉紅外光譜儀（FTIR）....17
2.4 比表面與孔隙度分析儀（BET）.18
2.5 熱重量分析儀（TGA）........19
2.6  X光繞射儀（XRD）..........20
2.7 掃描式電子顯微鏡（SEM）....21
3  實驗步驟.................... 22
3.1 即時氣溶膠粒徑分析........ 22
3.2 即時氣溶膠紅外光譜分析.....25
3.3 以氣溶膠合成法製備Ag-MnOx 複合奈米結構.27
3.4 電極製備..................29
3.5 電化學量測..................30
第三章  結果與討論................32
1  即時氣溶膠粒徑及紅外光譜分析..32
1.1  蔗糖奈米粒子即時粒徑分析..32
1.2  蔗糖奈米粒子即時紅外光譜分析.34
1.3  二氧化矽奈米粒子即時粒徑分析.37
1.4  二氧化矽奈米粒子即時紅外光譜分析.39
2  以氣溶膠合成法製備Ag-MnOx奈米複合結構應用於超級電容器正極材料.42
2.1  Ag-MnOx奈米複合結構材料分析.42
2.2  添加CTAB為模板之Ag-MnOx奈米複合結構（c-Ag-MnOx）材料
分析....................45
2.3  Ag-MnOx電化學分析..........47
2.4  c-Ag-MnOx電化學分析........51
第四章    結論.....................55
第五章    未來工作..................56
參考文獻..........................57

                                

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