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  • 學位論文

金屬及金屬氧化物奈米粒子修飾電極之製備與研究並應用於電化學感測器及DSSC

Fabrication and Characterization of Metal and Metal Oxide Nanoparticle Modified Electrodes for Electrochemical Sensor and DSSC Applications

指導教授 : 陳生明

摘要


本研究內容主要為製備金屬、金屬氧化物奈米粒子修飾電極,應用於許多生物體內重要物質與有害物質之檢測,例如雙氧水、砷、沙丁胺醇、萊克多巴胺、雙氯芬酸、多巴胺等,分析其特性並也同時應用於染料敏化太陽能電池之研究。在電分析技術中,使用奈米金屬、金屬氧化物修飾於電極表面、各種分析方法以及直接電催化的應用,用於偵測與檢測各種重要的化學物質是很適合的。使用簡單的電化學方法合成銠-鈀與金-結晶紫奈米粒子,用於雙氧水 (安培法) 與砷 (伏安法) 之測定;這些感測器皆具有製備簡單、選擇性高、線性範圍佳等優點。在這些製備方法中,金屬氧化物奈米粒子像是鈦、鋯氧化物結合高分子複合物之電化學聚合與還原方法,可以有效的用於雙氯芬酸藥物、沙丁胺醇與萊克多巴胺感測器,並於真實樣品中有良好的性能。此外,二氧化鈦奈米粒子在染料敏化太陽能電池也扮演重要的角色;藉由加入高導電性的物質於TiO2與ZnO工作電極,可增加太陽能電池的穩定性與效能。我們使用碳材像是石墨烯、富勒烯與多層奈米碳管複合物達到好的短路電流與效率。這些碳複合材料大量覆蓋於TiO2與ZnO粒子而形成太陽能電池中有效的陽極材料。

並列摘要


This thesis mainly focuses on the fabrication and characterization of modified electrodes based on metal and metal oxide nanoparticles for the determination of various biologically important compounds and hazardous materials such as hydrogen peroxide, arsenic, salbutamol, ractopamine, diclofenac, dopamine and also for the dye sensitized solar cell applications. In electroanalysis, electrode surface modifications using metal and metal oxide nanomaterials and various methods and their direct employment in the electrocatalytic applications were found to be suitable for detection and determination of various important chemical compounds. Rhodium, palladium and gold, crystal violet nanoparticles have been synthesized by a simple and novel electrochemical approach for the development of amperometric hydrogen peroxide and voltammetric arsenic detection. These sensors have the advantages of ease of fabrication, good selectivity and large linear range of detection. In this method of fabrication, metal oxide nanoparticles such as titanium oxide and zirconium oxide with polymer composites have been prepared by simple electrochemical polymerization and reduction methods for an efficient sensor for the drugs diclofenac, salbutamol, ractopamine and it also shows promising performance in real sample analysis. Furthermore, titanium oxide nanoparticles play a crucial factor of photo electrode in dye sensitized solar cell. By adding good conductivity materials into the TiO2 and ZnO working electrode, therefore by enhanced the efficiency and stability of solar cells. We used carbon materials such as Graphene, Fullerene and multiwalled carbon nanotube composites to achieve good short circuit current and efficiency for the DSSC. These carbon composites are covered heavily with the TiO2 and ZnO particles that formed an efficient photoanode material for dye sensitized solar cells.

參考文獻


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