●622· 北京科技大学学报 2002年第6期 fuel cell [J].J Electrochem Soc,1998,145(3):35 参考文献 6 Decorse P,Caboche G,Dufour L C.A comparative study 1 Wen TL,Tu H Y,Xu Z H,et al.A study of (Pr,Nd, of the surface and bulk properties of lanthanum-stron- Sm)-Sr,MnO,cathode materials for solid oxide fuel cell tium-manganese La-Sr,CoO,as a function of Sr-con- [J].Solid State Ionic,1999,121:25 tent,oxygen potential and temperature [J].Solid State 2 Sakaki Y,Takeda Y,Kato A,et al.Ln-Sr,MnO,(Ln=Pr, Ionic,1999,117:161 Nd,Sm and Gd)as the cathode materials for solid oxide 7 Masashi Mori,Yoshiko Hiei,Tohru Yamamoto,et al.Lan- fuel cells [J.Solid State Ionic,1999,118:187 thanum alkaline-earth manganites as a cathode material in 3 Adler S B.Mechanism and kinetics of oxygen reduction high-temperture solid oxide fuel cells []J Electrochem on porous La-Sr,CoO3-electrodes [J].Solid State Ionic, Soc,1999,146(11):4041 1998,111:125 8克鲁格HP,亚历山大LE著，盛世雄等译.X射线衍 4 Charojrochkul S,Choy K L,Steele B C H.Cathode/elec- 射技术M).北京：冶金工业出版社，1986.442 trolyte systems for solid oxide fuel cell fabricated using 9 Mondal P,Klein A,Jaegermann W,et al.Enhanced spe- flame assisted vapour deposition technique [J].Solid Sta- cific grain boundary conductivity in nanocrystalline Y,O,- te lonic,1999,12l:107 stabilized zirconia [J].Solid State Ionics,1999,118:331 5 Endo A,Wada S,Wen C J,et al.Low overvoltage mech- 10符晓铭，唐春和.SOFC阴极材料及其薄膜制作工艺 anism of high ionic conducting cathode for solid oxide 研究D1.北京：清华大学，1997 Solid State Reactive Mechanism of La-Sr,MnO; HAN Minfang,LI Botao,PENG Suping,YANG Cuibai,LIU Jing China University of Mining Technology,Beijing 100083,China ABSTRACT The cathode LSM powders of solid state fuel cells(SOFC)were manufactured from solid state reaction materials such as La:O3,MnO2,and SrCO3.The modern instrument,such as XRD,TGA/DTA etc, were used to research the processing steps of LSM fine powders.During the processing,there was LaSrOx existed,no LaMnO,.The reaction steps were described as follows.First,LazO,+SrCO,La2SrO,+CO2,and then La2SrO,+MnOzLa-,Sr,MnO,,finally got LaSr,MnO3.This result is different from the recognized steps during the LSM processing,in which La:O,+MnOzLaMnO,first,and then LaMnO,+SrCO, LaSr,MnO3. KEY WORDS La-Sr,MnO:;solid state reaction processing;solid state fuel cell. 6 2 2 - 北 京 科 技 大 学 学 报 2 00 2 年 第 6 期 参 考 文 献 I W七n T L , hT H Y, X u Z H , e t a l . A s tU dy o f ( P r, N d , Sm ) 卜, S乙 M n o 。 e a th o d e m血 r i a l s fo r s o li d o x id e fo e l e e ll [Jl . S o li d S t at e I o n i e , 19 9 9 , 1 2 1 : 2 5 2 S a k a k l 丫 肠k e d a Y, K at o A , e t a l . L n 卜 x s r x M n O 。 ( L n = P几 N d , Sm an d G d ) a s ht e e a th o d e m at e r i a l s fo r s o l id o x i d e fu e l e e ll s [J ] . S o lid S t a t e I o n i e , 19 9 9 , 1 1 8 : 18 7 3 A dl e r S B . M e c h an i s m an d k i n et i e s o f o xy g e n r e d u ct i o n o n P o r o u s L a l 。 S几C o O卜占 e l e ctr o d e s [ J ] . S o l id Stat e I o n i e , 1 9 9 8 , 1 1 1 : 1 2 5 4 C h ar oj r o e h k u 1 S , C h o y K L , S et e l e B C H . C a th o d e/ e l e e - tr o ly t e s y s t e m s fo r s o li d o x id e fu e l c e ll fab ir e at e d u s i ng fl am e a s s i s t e d v aP o ur d e P o s it i on et e hn lq u e [ J ] . S o li d S at - t e I o n i e , 1 99 9 , 1 2 1 : 10 7 5 E n d o A , W合d a s , W七n C J , e t a l . L ow o v e vr o l t a g e m e e h - an i s m o f h ihg i o n i e e o n du e t i n g e at h o d e fo r s o li d o x id e fu e l e e l l [J ] . J E l e e otr e h e m S o e , 1 9 9 8 , 1 4 5 ( 3 ) : 35 6 D e e o r s e P, C ab o e h e G , D u fo ur L C . A e o m P a art iV e s t u dy o f th e s ur fa e e an d b u lk P r o P e rt i e s o f lan th a n u m 一 s tr o n - tium 一 m a n g an e s e L a 卜 二 S 九C o O 3一。 a s a fu n e ti o n o f S r 一 e o n - t e nt , o xy ge n P o t e nt i a l an d t e m P e r a t l l r e [J ] . S o l id Stat e I o n i c , 19 9 9 , 1 1 7 : 16 1 7 M a s a s ih M o r i , oY s h i ko H i e i , oT h r u y hm am o ot , e t a l . L an - ht anu m a lka li n e 一 e a rt h m an g ian t e s a s a e hat o d e m at e r i a l in h ig h 一 et m p e rt u r e s’O li d o x id e fu e l e e l l s [ J ] . J E l e c tr o e h e m S o e , 19 9 9 , 1 4 6 ( 1 1) : 4 0 4 1 8 克 鲁格 H P , 亚历 山 大 L E 著 . 盛世 雄等 译 . X 射线衍 射技 术 [M ] . 北京 : 冶金 工业 出版社 , 19 8 6 . 4 42 9 M o n d a l P, K l e i n A , Jae g e mr an W, et a l . Ehn an e e d s Pe - e iif e g r a i n b oun d a r y c o n du ct i v iyt i n n a n o e yr s t a lli n e Y 2 0 3 - s t ab i li ez d z i cr o n i a [ J ] . S o li d St aet I o n i e s , 1 9 9 9 , 1 18 : 3 3 1 10 符晓铭 , 唐春和 . SO F C 阴极 材料及 其薄 膜制 作工艺 研究 D[ ] , 北京 : 清华 大学 , 19 97 S o li d S t at e R e a c ti v e M e c h an i s m o f L a l 一 x s 九M n O 3 产了刁N iM nfa ng, IL B 口 at ,o P E N G S uP i刀 9 1 YA N G uC ib ia, IL U iJ 刀 g C h i n a U n i v e r s i yt o f Min i n g& eT e hn o l o gy, B e ij i飞 10 0 0 8 3 , C h ina A B S T R A C T hT e e a t h o d e L SM P o w d e r s o f s o lid st ate fu e l e e ll s ( S O FC ) w e r e m anu fa e trU e d fr o m s o lid s t at e re a e t i o n m at ier a l s su e h a s L 氏0 3 , M n O Z , an d S r C O 3 . Th e m o d e m i n st r u m e lt , s uc h a s X R D , T G A /D T A e t e , w e r e u s e d ot r e s e ar c h ht e P r o c e s s l n g st e Ps o f L SM if n e P o w d e r s . D ur in g het P r o c e s s i n g , t he r e w a s L a Z S r o x e x i s t e d , n o L a M n O 3 . hT e r e a e t i o n s t e P s w e r e d e s e r ib e d a s fo ll o w s . F ir st , L a Z O 3+ S r C O 3斗L 灸S r o x + C O Z , an d ht e n L丙 S or x + N加 0 2升 L a , 一 x s r ` M n O 3 , 血 a ll y g o t L a : 一 x s xr M n O 3 . hT i s er s u lt 1 5 d i fe r e nt fr o m ht e r e e o gn i z e d s t e P s dUr i n g ht e L SM P r o e e s s i n g , i n w h i e h L 氏0 3+ M i l O Z斗 L a M n O 3 if r st , a n d ht e n L a M n O 3+ S r C O 3斗 L a l _ x s r x M n O 3 . K E Y W O R D S L a : 一 、 Sxr M n O 3 : s o lid s t at e r e a e t i o n rP o c e s s i n g : s o lid s t at e fu e l e e ll