固態氧化物燃料電池陰極材料之製備方法

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

103142991

專利證號

I 562447

專利獲證名稱

固態氧化物燃料電池陰極材料之製備方法

專利所屬機關 (申請機關)

國立中央大學

獲證日期

2016/12/11

技術說明

本研究先利用化學沉澱法，經煆燒可得Ba0.5Sr0.5Fe1-XCuXO3-δ (x=0、0.1、0.2、0.3、0.4、0.5)鈣鈦礦氧化物，探討其作為導氫型固態燃料電池(Proton SOFC)之陰極之可行性。化學沉澱法所採用之鋇、鍶硝酸鹽劑量固定在0.5:0.5，而鐵、銅等硝酸鹽則改變劑量以調製成溶液，另外配置飽和碳酸銨溶液作為滴定劑，以2 ml/min之速率加入硝酸鹽溶液中，反應終點之pH值控制在6.0 ~ 8.5間，靜置過夜，濾除溶液，將固體放入850 oC ~ 1000 oC空氣爐煆燒3小時，所得粉末經X光繞射分析儀（XRD）分析其晶體結構，掃描式電子顯微鏡（SEM）觀察其形貌，熱重分析儀(TGA)進行熱性質分析，進而將粉末做成固態燃料電池之陰極，進行電化學測試。 Precursors of Ba0.5Sr0.5Fe1-XCuXO3-δ (x=0、0.1、0.2、0.3、0.4、0.5) were prepared with chemical precipitation by addition (at a constant rate of 2 ml/min) a saturated ammonium carbonate solution into the nitrate solutions containing stoichiometric ratio of Ba, Sr, Fe and Cu salts under room temperature until the pH reached a value in the range from 6.0 to 8.5. Staying overnight, the mixture was filtrated to remove solution and the remained solid residue was subject to calcination at 850 oC ~ 1000 oC for 3 h, cooled and pulverized into powders. The powders were examined by x-ray diffractometer (XRD) to determine their crystal structure, observed by scanning electron microscopy (SEM) to depict their surface morphology, and tested by thermogravity analysis to understand their thermal behavior. The identified Ba0.5Sr0.5Fe1-XCuXO3-δ oxides were made into a pellet for determination of electrical conductivity.

備註

本部(收文號1100054674)同意該校110年8月27日中大研產字第1101401054號函申請終止維護專利(中央)

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