Ln2(Zr,Ti)2O7和LnDC氧化物製備與碳酸鹽複合材料電性行為之研究

Preparation and conducting behaviors of the Ln2(Zr,Ti)2O7 and LnDC oxides and carbonate composites

溫良成(Liang-Cheng Wen)

指導教授 ： 高惠春

共同指導教授 ： 王伯昌 ； 魏和祥(Ho-Hsiang Wei)

淡江大學/理學院/化學學系博士班/博士(2013年)

https://doi.org/10.6846/TKU.2013.00327

摘要

本篇論文主要以結構精算、電性分析和元素光譜分析等實驗方式，研究固態氧化物燃料電池 (SOFC) 中的電解質部分。使用的氧化物材料包括 (Y2-xLix)Ti2O7-x-aLiO0.5，簡稱YLT-aL、(Gd2-xLix)Ti2O7-x- aLiO0.5，簡稱GLT-aL、Ln2Zr2O7，簡稱LnZ、Ln2(ZrTi)O7，簡稱LnZT、以及((Ln0.2Ce0.8)O1.9)，簡稱LnDC。其中LnZ、LnZT以及LnDC還與LNCO (Li2CO3與Na2CO3莫耳比1 : 1) 混合製成複合電解質材料。
700

關鍵字

固態氧化物燃料電池電解質 ； 助鎔劑 ； 焦氯石 ； 螢石 ； 複合材料 ； 碳酸鹽

並列摘要

The purpose of this treatise is focused on the electrolyte part of solid oxide fuel cell (SOFC), and the structure refinement, electrical analysis and XANES spectra were be used in this research. The oxide materials in this research include (Y2-xLix)Ti2O7 -aLiO0.5 (a = 0, 2 and 4, x = 0 - 0.11; a = 1 and 3, x = 0.070) with abbreviation of YLT-aL, (Gd2-xLix)Ti2O7- aLiO0.5 (a = 0, 2 and 4, x = 0 - 0.15, a = 1 and 3, x = 0.100) with abbreviation of GLT-aL, Ln2Zr2O7 (Ln = Eu, Ho and Yb) with abbreviation of LZ, Ln2(ZrTi)O7 (Ln = Eu, Ho and Yb) with abbreviation of LZT and LnDC ((Ln0.2Ce0.8)O1.9) (Ln = La, Sm, Gd and Gd + Y). The LZ, LnZT and LnDC series were chosen to make composite electrolyte materials with LNCO carbonate mixture (The molar ratio of Li2CO3 : Na2CO3 = 1 : 1) and the abbreviations are LZ-C, LZT-C and LnDC-C, respectively.
The YLT-2L (x = 0.070) has the highest total conductivity of 4.42(4) x 10-4 S

並列關鍵字

solid oxide fuel cell (SOFC) ； flux ； pyrochlore ； fluorite ； composite ； carbonate

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