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- ( )

( )



Sr0.75Y0.25Co0.5Mn0.5O3-d (La0.6+xSr0.4-x)1-yMn0.5Ti0.5O3
( )

-d

: ..-.

2011
1


1. 2. 3. 3.1. 3.2. 4. 4.1. 4.2. 5. 6. 7. 3 4 10 10 15 18 18 22 30 31 32

.



2


1 () ­ , . : , ( , , , , ..), , , .

3


2 1 [2]:

. 1. , ( ) , . , , .
H 2 O2 H 2O 2e ,

. :
O2 4e 2O
2

, :
E G , 4F

G - , F ­ .
4


[7]. (T>8000C), (6000
. , . c , . , . , . . , ­ YSZ (ZrO2 + 8 mol.% Y2O3). . -, LSM (La1-xSrxMnO3). 1200 YSZ ( ), . LSM .
5


­ NiO YSZ (NiO/YSZ). , NiO . ­ . . , . , 600
6


. 2. ­

. . 90 [3] LSGM (La-Sr-Ga-Mg), . LSGM YSZ ( 3).

. 3. YSZ LSGM , ­ . NiO . Sr
0.75Y0.25Co0.5

NiO LSGM,



Mn0.5O3-y (SYCM)

[8,9,10]. , SYCM-
7


, LSM- ( 4).

. 4. LSM SYCM SYCM- , 7-8% 200 . 5.

. 5. SYCM-. ­ ,
8
















[7]. SYCM GDC. SYCM, , , GDC ­ . . SYCM/GDC 35/65, 65/ 35 ( ) 50/50, , . : (La
0.6+xSr0.4-x)Mn0.5

Ti0.5O3-d.

. .

9


3.1 ) Supra 50/VP (ZEISS) ) - . « ». . (300 ­ 1300), , ( 1 /). - 6.

. 6. .
10


7.

. 7. , 8.

. 8. - . , . , , 0.1 1 10-50 , 450 (700В900)0C [1,6]. (SYCM/GDC) - .
11


9.

. 9. 10Sc1CeSZ (Sc0.2Ce0.01Zr
0.79

O2-y)

15000 12 . 500 . (Print screen). NiO/Sc0.2Ce
0.01

Zr0.79O2

-y

(10Sc1CeSZ). 10Sc1CeSZ 40/60 %. NiO/10Sc1CeSZ=40/60%. Heraeus V-006. 14000C 4 .
95

.



Ce0.9Gd0.1O1. 1300 3 . Sr
y(S

(GDC, Fuel Cell

Materials, ) Heraeus V-006.

0.75

Y0.25Co0.5Mn0.5O3

-

YCM)/Ce0.9Gd0.1O1.95(GDC)={35/65, 50/50, 65/35} %.

Heraeus V-006. 11000C 3 .
12


1.52. ( 10).

. 10. . 65/35 %. 11.





. 11. SYCM/GDC=65/35 %. GDC SYCM/GDC ( 12).
13




GDC

SYCM/GDC

. 12. SYCM/GDC=65/35 %. SYCM/GDC 13.

. 13. SYCM/GDC=65/35 %. SEM- , . 10, ­ 20 . , , .

14


3.2 (La
0.6+xSr0.4-x)1-yMn0.5

Ti0.5O3

-d

. : La(NO3)36H2O (), Sr(NO3)3 (), Mn(CH3COO)24H2O (), TiO2 (). . ( 150), , . «» 400 . , 12 (800). 1200, 1175, 1150 1125. ) . 20 ~2 . 1300 . 20 3 5 . (. 14)

. 14.

15






.









. 900 . . (La
0.75

15
0.97









Sr0.25)

Mn0.5Ti0.5O3- .

. 15. .

1. 300-1050 . , . , . ) Siemens D-500 FeK- 20-90o. 0.05.
16


JCPDS. ASTM-JCPDC . ) Netzsch TMA 402. 40-900oC, 5oC/.

17


4.1 900 p(O2)=0.5. SYCM/GDC={35/65, 50/50, 65/35} %. 16.

. 16. 900 , SYCM/GDC=65/35 %. SYCM , . , (

18


17).

. 17. , . SYCM (SYCM/GDc=35/65 %.). , SYCM/GDC=65/35 %. 50/50 %.
19


. . SYCM/GDC=50/50 %. , . SYCM/GDC=50/50 %., 200 /2. , 200 . 18.

. 18. SYCM/GDC=50/50 %. , . Sr-Y-Co-Mn

, , 700 p(O2)=0.5, 0.2 0.1 .. 19 , ,
20


, , LSM.

. 19. SYCM/GDC=50/50 %. , , , , ( 20).

. 20. SYCM/GDC=50/50 %. 900 50% , 700 ­ 70%. , , .

21


4.2. (La
0.75









Sr0.25)

0.97

Mn0.5Ti0.5O3, 1200

21.

. 21. (La
0.75

Sr0.25)

0.97

Ti0.5Mn0.5O3.
0.75

, (La .

Sr0.25)0.97Ti0.5Mn0.5O3

. 1. La0.5Sr0.5Ti0.5Mn0.5O3 (La0.6Sr0.4) Ti0.5Mn0.5O3 =5.517(2), =60.130(3), V=119.1(2)A3, =5.87cm3 =5.520(2), =60.179(3), V=119.3(2)A3, =6.02g/cm3 =5.519(2), =60.189(3), V=120.56(2)A3, =6.168g/cm3

0.97

(La

0.75

Sr0.25)

0.97

Ti0.5Mn0.5O3

. 1.
22


, 80% 20% . , . 22.

. 22. La0.5Sr0.5Mn0.5Ti0.5O3 ( 23).

-d



23


. 23. , , . . ( 24).

. 24. , . x 0 0.15 -0.1 y 0.03 0.03 0 (La
0.6+xSr0.4-x)1-yMn0.5

Ti0.5O3

-d

2. , S/cm () 282 268 267 , S/cm () 214 227 249
0.6+xSr0.4-x)1-yMn0.5

. 2. (La

Ti0.5O3

-d

.
24


, , . , , ­ . ( 20%) . 25 L/L0 =(L(T)-L0)/L0 ( L0 ­ =303 , L(T) ­ ) La0.5Sr0.5Ti0.5Mn0.5O3 . (La
0.75

Sr

0.25)0.97

Ti0.5Mn0.5O3,





() . , L/L0()

. 25.
0.75Sr0.25)0.97









La0.5Sr0.5Ti0.5Mn0.5O3 (La

Ti0.5Mn0.5O3 =1/L0(L/T)

25


~10·10-6 K-1, LSGM ( 26).

. 26. La0.5Sr0.5Ti0.5Mn0.5O3 La0.8Sr0.2Ga0.8Mg0.2O3

LSGM LSGM LSGMC
0.15







La0.8Sr0.2Ga0.8Mg

o

0.05

O3

-d

, 1200 2 . . 27 La0.8Sr0.2Ga0.8Mg0.15o
0.05

O3

-d



La0.5Sr0.5Ti0.5Mn0.5O3 1200 2 . , La0.5Sr0.5Ti0.5Mn0.5O3 La0.8Sr0.2Ga0.8Mg0.15o
26
0.05

O3-d.
















LSGMC LSTM .

. 27. La0.8Sr0.2Ga0.8Mg (La
0.75 0.15

o

0.05

O3-d La0.5Sr0.5Ti0.5Mn0.5O3





Sr0.25)

0.97

Ti0.5Mn0.5O3.

. , , o La0.5Sr0.5Ti0.5Mn0.5O3 O3-d. (La0.75Sr0.25)
0.97

Ti0.5Mn0.5O3

La0.8Sr0.2Ga0.8Mg
0.15 0.05

20% 2 80% N2 5 ppm H2S 800. La0.5Sr0.5Ti0.5Mn0.5O3 800 (20% 2 80% N2) 5 ppm H2S 27 28.
27


. 27. La0.5Sr0.5Ti0.5Mn0.5O3

. 28. La0.5Sr0.5Ti0.5Mn0.5O3 27-28 , La0.5Sr0.5Ti0.5Mn0.5O3 800 (20% 2 80% N2) 5 ppm H2S .

28


.













, .

29


5. SYCM/GDC={35/65, 50/50, 65/35}%. SYCM, LSM. , SYCM ( ). , . 200 . c SYCM/GDC=50/50 %. . (La
0.6+xSr0.4-x)1-yMn0.5

Ti0.5O3-d.



, , , LSGM, . , . , LSGM.

30


6. 1. 2. 3. 4. - .., .. : 2 2. 1. ­ - .., .. : 2 2. 2. ­ Tatsumi Ishihara Perovskite Oxide for Solid Oxide Fuel Cells ­ Springer, Vladislav V. Kharton Solid State Electrochemistry I Fundamentals, : - .-. -, 2000. ­ 616 . : - .-. -, 2010. ­ 1000 . 2009. ­ 116 p. Materials and their Applications ­ Wiley-VCH Verlag GmbH & Co. KgaA, 2009. ­ 530 p. 5. p. 6. Anthony R. West, Derek C. Sinclair, Naohiro Hirose Characterization of Electrical Materials, Especially Ferroelectrics, by Impedance Spectroscopy ­ Journal of Electroceramics 1:1, 65-71, 1997 7. .. - ­ - , 2010. 8. Burmistrov I.N., Drozhzhin O.A., Istomin S.Ya., Sinitsyn V.V., Antipov E.V., Bredikhin S.I. Sr0.75Y0.25Co0.5Mn0.5O3-y Perovskite Cathode for Solid Oxide Fuel Cells ­ J. Electrochem. Soc., vol. 156, N10, pp. B1212-1217, 2009. 9. .. , .. , .. , .. , .. , .. Sr0.75Y0.25Co0.5Mn0.5O3-y ­ , 10, 107-111, 2008. 10. .. , .. , .. , .. , .. , .. LSM Sr-Y-Co-Mn-O ­ , 2008
31

Vladislav V. Kharton Solid State Electrochemistry II Electrodes, Interfaces

and Ceramic Membranes ­ Wiley-VCH Verlag GmbH & Co. KgaA, 2011. ­ 640


7. ­ ­ SEM ­ YSZ ­ (Y2O3 8mol%Y2O3-92mol%ZrO2) ZrO2, 8 .% Y2O3 LSM ­ La0.8Sr0.2MnO3
- d 0.05

LSGM ­ La0.8Sr0.2Ga0.8Mg0.2O3­ LSGMC ­ La0.8Sr0.2Ga0.8Mg ­ ­
0.15

o

O3

-d

GDC ­ 20mol%Gd2O3-80mol%CeO2

32