- 學位論文
染料敏化太陽能電池敏化劑之環保製程
Environmental friendly manufacturing process of sensitizers for dye sensitized solar cells
摘要
過渡金屬化合物如多聯口比啶釕化合物由於具有穩定的氧化態和激發態，它們的光化學、電化學應用受到廣泛的關注。近十年來，隨著其光電轉換效率的不斷提高，多聯口比啶釕作為染料敏化太陽能電池(dye-sensitized solar cells)光敏劑越來越引起人們的重視，其中4,4’-dicarboxy-2,2’-bipyridine因其作為染料與TiO2鍵結之橋樑，是多聯口比啶釕化合物中最重要的配位基。 文獻上對於4,4’-dicarboxy-2,2’-bipyridine之純化方法，需使用50%之硝酸加熱至沸騰並持續四個小時，但經過此純化過程後之產物純度仍不理想，且過程中所產生之廢液並不符合工業廢水排放標準。本研究使用之純化方式乃是使用較便宜的氫氧化鈉，且在室溫下即可進行，與文獻之方法相比下較為方便、安全、便宜，且產生之廢水pH值呈中性，不僅符合排放標準，更具有廢水再利用之優點。
並列摘要
Transition metal compounds such as polypyridine ruthenium complex had been interested in it’s photochemistry and electrochemistry due to stable ground state and excited state. In this decade, polypyridine ruthenium complex especially4,4’-dicarboxy-2,2’-bipyridine which as bridge to connected the dye and TiO2 surface had arised attention with higher photon to current conversion efficiency. To purified 4,4’-dicarboxy-2,2’-bipyridine, it would used boiled nitric acid for four hours which needed much more awareness, and the residue solution after this process can not be disposal directly. Even more the purity of4,4’-dicarboxy-2,2’-bipyridine was not satisfied either. In our way, which was cheaper and safer, we used sodium hydroxide and the whole process can be run under room temperature. Becides, the residue solution is neutral and friendly to environment, and more, it has advantage to be recycled.
參考文獻
延伸閱讀
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