本文選題：固體氧化物燃料電池 + 電解質　； 參考：《華南理工大學》2014年碩士論文

【摘要】：固體氧化物燃料電池（Solid Oxide Fuel Cell，SOFC）是一種可以將化學能直接轉化為電能的能源轉化裝置，對比傳統(tǒng)的能源轉化裝置，，其具有能源轉化效率高、全固態(tài)結構、污染小、噪聲低、環(huán)境友好及實用性強等優(yōu)點，具有廣闊的發(fā)展前景。固體氧化物燃料電池主要組成部件有陰極、陽極和電解質，其中電解質是最為關鍵的部件，其性能直接決定著電池的工作溫度和運行性能。磷灰石型鑭硅化合物在中低溫下顯示出較高的電導率，使用磷灰石型鑭硅化合物作為固體氧化物燃料電池可以有效提高電池轉化效率、降低工作溫度以及解決因高溫而帶來的電池部件連接、封裝等問題，因而，磷灰石型鑭硅化合物作為固體燃料電池電解質材料的研究具有重要意義，得到各國專家學者的廣泛關注。 本文通過高溫固相反應合成法在1450℃保溫4小時制備出磷灰石型硅酸鑭及鎂摻雜的磷灰石型硅酸鑭粉末，采用X射線衍射儀對粉末的晶型結構進行檢測。然后采用大氣壓等離子體噴涂設備制備出硅酸鑭電解質涂層和鎂摻雜的磷灰石型硅酸鑭電解質涂層，并對涂層做退火處理，同時使用脈沖高能強流電子束裝置對鎂摻雜的磷灰石型硅酸鑭涂層表面進行處理，以研究其孔隙率的變化。通過X射線衍射儀、掃描電子顯微鏡（SEM）對涂層的晶型結構和表面形貌進行表征；采用壓汞儀測試涂層的孔隙率；利用交流阻抗法對涂層電導率進行測量。實驗制備的硅酸鑭電解質涂層在800℃時的電導率為2.83×10-3S/cm，鎂摻雜的磷灰石型硅酸鑭電解質涂層在800℃時的電導率為9.68×10-3S/cm，而經過脈沖高能強流電子束處理后的硅酸鑭電解質涂層和鎂摻雜的磷灰石型硅酸鑭電解質涂層在800℃時的電導率分別為6.78×10-3S/cm、1.24×10-2S/cm。
[Abstract]:Solid Oxide Fuel cell (SOFC) is a kind of energy conversion device which can convert chemical energy directly into electric energy. Compared with traditional energy conversion device, it has high energy conversion efficiency, all-solid structure, low pollution and low noise. Environmental friendly and practical advantages, has broad prospects for development. Solid oxide fuel cell (SOFC) consists of cathode anode and electrolyte. Electrolyte is the most important component and its performance directly determines the operating temperature and performance of the cell. Apatite lanthanum silicon compounds show high conductivity at moderate and low temperatures. Using apatite lanthanum silicon compounds as solid oxide fuel cells can effectively improve the conversion efficiency of the batteries. It is of great significance to study apatite lanthanum silicon compounds as electrolyte materials for solid fuel cells because of reducing working temperature and solving the problems of connection and encapsulation of battery components caused by high temperature. It has received extensive attention from experts and scholars from all over the world. In this paper, apatite type lanthanum silicate powder and magnesium doped apatite type lanthanum silicate powder were prepared by high temperature solid state reaction method at 1450 鈩

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