功能材料
功能材料
공능재료
JOURNAL OF FUNCTIONAL MATERIALS
2010年
3期
397-400
,共4页
固体氧化物燃料电池%LSC阴极%甘氨酸-硝酸盐法%性能测试
固體氧化物燃料電池%LSC陰極%甘氨痠-硝痠鹽法%性能測試
고체양화물연료전지%LSC음겁%감안산-초산염법%성능측시
solid oxide fuel cell%LSC cathode%glycine-nitrate process%performance testing
通过甘氨酸-硝酸盐法制备出均质纳米粉体La_(0.6)Sr_(0.4)CoO_(3-δ)(LSC),并采用TGA、XRD、BET和SEM等手段进行了表征;同时研究了600～800℃以LSC为阴极材料的单电池的输出性能.结果表明,产物在800℃时已形成钙钛矿相,且具有较高的比表面积,950℃为最佳烧结温度,可获得纳米级多孔显微结构,所得单电池输出性能显著提高;当电压为0.7V时,电池功率密度增幅随温度增加非常明显.
通過甘氨痠-硝痠鹽法製備齣均質納米粉體La_(0.6)Sr_(0.4)CoO_(3-δ)(LSC),併採用TGA、XRD、BET和SEM等手段進行瞭錶徵;同時研究瞭600～800℃以LSC為陰極材料的單電池的輸齣性能.結果錶明,產物在800℃時已形成鈣鈦礦相,且具有較高的比錶麵積,950℃為最佳燒結溫度,可穫得納米級多孔顯微結構,所得單電池輸齣性能顯著提高;噹電壓為0.7V時,電池功率密度增幅隨溫度增加非常明顯.
통과감안산-초산염법제비출균질납미분체La_(0.6)Sr_(0.4)CoO_(3-δ)(LSC),병채용TGA、XRD、BET화SEM등수단진행료표정;동시연구료600～800℃이LSC위음겁재료적단전지적수출성능.결과표명,산물재800℃시이형성개태광상,차구유교고적비표면적,950℃위최가소결온도,가획득납미급다공현미결구,소득단전지수출성능현저제고;당전압위0.7V시,전지공솔밀도증폭수온도증가비상명현.
The uniform nanopowders of La_(0.6)Sr_(0.4)CoO_(3-δ)(LSC) were synthesized by glycine-nitrate process and the powders obtained were characterized by TGA, XRD, BET and SEM. Meanwhile, the single cell performance of SOFC based on LSC as cathode was tested from 600 to 800℃. The results showed that perovskite phase could form after heat treatment of the cathode at 800℃ for 2h, and the powders acquired exhibited high specific surface area. Moreover, uniform and porous structure of cathode layers can be obtained by sintering at 950℃ and the single cell with LSC exhibits good electrochemical performance. Furthermore, I-V-P curve analysis revealed that the power density increased obviously with temperature at cell voltage of 0.7V.
