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enquan123

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Electrical property of La0.7Sr0.3Cr0.5-yMn0.5-zCo(y+z)O3 +/-delta as anode of SOFC  


×÷Õß: He EQ (He Enquan)1,2, Ma WH (Ma Wenhui)1,2, Yu J (Yu Jie)1,2, Liu RH (Liu Ronghui)1,2, Dai YN (Dai Yongnian)1,2  
À´Ô´³ö°æÎï: JOURNAL OF RARE EARTHS    ¾í: 25    ÌØ¿¯: Sp. Iss. SI    Ò³: 382-386    ³ö°æÄê: DEC 2007   
±»ÒýƵ´Î: 3     ²Î¿¼ÎÄÏ×: 14     ÒýÖ¤¹ØÏµÍ¼      
ÕªÒª: La0.7Sr0.3Cr0.5Mn0.4Co0.1O3 +/-delta anode material was synthesized by glycine nitrate process. X-ray diffraction patterns indicate that single perovskite phase was created after sintering the predecessor at 1623 K for 5 h. By means of four-probe direct current, the electrical conductivities of La0.7Sr0.3Cr0.5Mn0.4Co0.1O3 +/-delta were tested in different atmospheres, the maximum values were 10.2 S.cm(-1) in air, 4.5 S.cm(-1) in CH4 and 0.42 S.cm(-1) in HZ at 1073 K, respectively. The compatibility between La0.7Sr0.3Cr0.5Mn0.4Co0.1O3 +/-delta and La0.9Sr0.1Ga0.8Mg0.2O3 - delta were investigated via X-ray diffraction and scanning electron microscopy, which shows that La0.7Sr0.3Cr0.5Mn0.4Co0.1O3 +/-delta oxide, has good chemical and thermal compatibility with La0.9Sr0.1Ga0.8Mg0.2O3 - delta. An electrolyte supported single cell consisted of La0.7Sr0.3Cr0.5Mn0.4Co0.1 O3 - delta vertical bar La0.9Sr0.1Ga0.8Mg0.2O3 - delta vertical bar La0.9Sr0.1Ca0.1Fe0.8Co0.2O3 - delta was fabricated through screen printing method. The open circuit voltage of the cell is about 0.92 V, and the maximum power density is about 75 mW.cm(-2) at 1123 K.
ÎÄÏ×ÀàÐÍ: Article  
ÓïÑÔ: English  
×÷Õ߹ؼü´Ê: perovskite; glycine nitrate process; anode; solid oxide fuel cell; rare earths  
KeyWords Plus: FUEL-CELLS; OXIDE  
ͨѶ×÷ÕßµØÖ·: Ma, WH (ͨѶ×÷Õß), Kunming Univ Sci & Technol, Fac Mat & Met Engn, Kunming 650093, Peoples R China  
µØÖ·:
1. Kunming Univ Sci & Technol, Fac Mat & Met Engn, Kunming 650093, Peoples R China
2. Natl Engn Lab Vacuum Met, Kunming 650093, Peoples R China  
µç×ÓÓʼþµØÖ·: mwhui@kmust.edu.cn  
³ö°æÉÌ: METALLURGICAL INDUSTRY PRESS, 2 XINJIEKOUWAI DAJIE, BEIJING 100088, PEOPLES R CHINA  
ѧ¿ÆÀà±ð: Chemistry, Applied  
IDS ºÅ: 286IL  
ISSN: 1002-0721  
http://apps.isiknowledge.com/ful ... mp;page=1&doc=3
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enquan123(½ð±Ò+2):лл£¬µ«ÊÇΪʲôûÓÐDIOºÅÄØ£¿£¿ 2010-06-10 10:35:47
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×÷Õß: He EQ (He Enquan)1,2, Ma WH (Ma Wenhui)1,2, Yu J (Yu Jie)1,2, Liu RH (Liu Ronghui)1,2, Dai YN (Dai Yongnian)1,2
À´Ô´³ö°æÎï: JOURNAL OF RARE EARTHS    ¾í: 25    ÌØ¿¯: Sp. Iss. SI    Ò³: 382-386    ³ö°æÄê: DEC 2007  
±»ÒýƵ´Î: 3     ²Î¿¼ÎÄÏ×: 14     ÒýÖ¤¹ØÏµÍ¼ÒýÖ¤¹ØÏµÍ¼     
ÕªÒª: La0.7Sr0.3Cr0.5Mn0.4Co0.1O3 +/-delta anode material was synthesized by glycine nitrate process. X-ray diffraction patterns indicate that single perovskite phase was created after sintering the predecessor at 1623 K for 5 h. By means of four-probe direct current, the electrical conductivities of La0.7Sr0.3Cr0.5Mn0.4Co0.1O3 +/-delta were tested in different atmospheres, the maximum values were 10.2 S.cm(-1) in air, 4.5 S.cm(-1) in CH4 and 0.42 S.cm(-1) in HZ at 1073 K, respectively. The compatibility between La0.7Sr0.3Cr0.5Mn0.4Co0.1O3 +/-delta and La0.9Sr0.1Ga0.8Mg0.2O3 - delta were investigated via X-ray diffraction and scanning electron microscopy, which shows that La0.7Sr0.3Cr0.5Mn0.4Co0.1O3 +/-delta oxide, has good chemical and thermal compatibility with La0.9Sr0.1Ga0.8Mg0.2O3 - delta. An electrolyte supported single cell consisted of La0.7Sr0.3Cr0.5Mn0.4Co0.1 O3 - delta vertical bar La0.9Sr0.1Ga0.8Mg0.2O3 - delta vertical bar La0.9Sr0.1Ca0.1Fe0.8Co0.2O3 - delta was fabricated through screen printing method. The open circuit voltage of the cell is about 0.92 V, and the maximum power density is about 75 mW.cm(-2) at 1123 K.
ÎÄÏ×ÀàÐÍ: Article
ÓïÑÔ: English
×÷Õ߹ؼü´Ê: perovskite; glycine nitrate process; anode; solid oxide fuel cell; rare earths
KeyWords Plus: FUEL-CELLS; OXIDE
ͨѶ×÷ÕßµØÖ·: Ma, WH (ͨѶ×÷Õß), Kunming Univ Sci & Technol, Fac Mat & Met Engn, Kunming 650093, Peoples R China
µØÖ·:
1. Kunming Univ Sci & Technol, Fac Mat & Met Engn, Kunming 650093, Peoples R China
2. Natl Engn Lab Vacuum Met, Kunming 650093, Peoples R China
µç×ÓÓʼþµØÖ·: mwhui@kmust.edu.cn
³ö°æÉÌ: METALLURGICAL INDUSTRY PRESS, 2 XINJIEKOUWAI DAJIE, BEIJING 100088, PEOPLES R CHINA
IDS ºÅ: 286IL
ISSN: 1002-0721
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