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Preparation and electrical properties of double-doped perovskitestructured conducting ceramics Sm0.9Sr0.1Al1-xCoxO3-δ

Xiang Jun Guo Yin-Tao Chu Yan-Qiu Zhou Guang-Zhen

Preparation and electrical properties of double-doped perovskitestructured conducting ceramics Sm0.9Sr0.1Al1-xCoxO3-δ

Xiang Jun, Guo Yin-Tao, Chu Yan-Qiu, Zhou Guang-Zhen
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  • A series of new mixed-conducting ceramics Sm0.9Sr0.1Al1-xCoxO3-δ(SSAC, x=0.2, 0.4, 0.5, 0.6) with perovskite structure were prepared by sintering the precursor powders derived from organic gel process. The effects of sintering temperature and Co doping concentration on the crystal structure, phase composition and electrical properties were also discussed in detail. The X-ray diffraction results show that the over-high sintering temperature or Co doping content will lead to the formation of impure phase with a chemical formula of Sm(Sr)CoO3 in sinters, and the solid solubility limit of Co in this system lies in the range of 50 mol%—60 mol%. The partial substitution of Co for Al in Sm0.9Sr0.1Al1-xCoxO3-δ results in an increase in lattice volume. The measurement results of electrical properties reveal that the conductivities of SSAC ceramics are dominated by p-type conduction, and the conduction behavior conforms to the small polaron hopping transport mechanism. With the increasing sintering temperature, the conductivities of as-prepared samples gradually increase. For the SSAC ceramics with Co content lower than the solid solubility limit, it is observed that their conductivities increase with the increase of Co content while the corresponding apparent activation energies decrease. The prepared single-phase Sm0.9Sr0.1Al0.5Co0.5O3-δ ceramic body by sintering at 1200℃ for 10h has a conductivity of 63.4 S/cm and an apparent activation energy of 0.14eV. These novel SSAC mixed-conducting ceramics with good electrical properties can potentially be used in the field of high temperature electrochemistry.
    • Funds:
    [1]

    Marques F M B, Kharton V V, Naumovich E N, Shaula A L, Kovalevsky A V, Yaremchenko A A 2006 Solid State Ionics 177 1697

    [2]

    Liu X M, Yang M, Lü Z, Pei L, Liu J, Sun W H 1999 Chin. Phys. 8 690

    [3]

    Shao Z P, Haile S M 2004 Nature 431 170

    [4]

    Wang H, Tablet C, Feldhoff A, Caro J 2005 Adv. Mater. 17 1785

    [5]

    Alberti G, Casciola M 2001 Solid State Ionics 145 3

    [6]

    Xia C R, Rauch W, Chen F L, Liu M L 2002 Solid State Ionics 149 11

    [7]

    Koyama M, Wen C, Masuyama T, Otomo J, Fukunaga H, Yamada K, Eguchi K, Takahashi H 2001 J. Electrochem. Soc. 148 A795

    [8]

    Martiniz-Juarez A, Sanchez L, Chinarro E, Recio P, Pascual C, Jurado J R 2000 Solid State Ionics 135 525

    [9]

    Senaris-Rodriguez M A, Goodenough J B 1995 J. Solid State Chem. 116 224

    [10]

    Lv H, Wu Y J, Huang B, Zhao B Y, Hu K A 2006 Solid State Ionics 177 901

    [11]

    Lü H, Zhao B Y, Sun G, Chen G, Hu K A 2007 Mater. Res. Bull. 42 1999

    [12]

    Asamoto M, Harada N, Iwamoto Y, Yamaura H, Sadaoka Y, Yahiro H 2009 Top. Catal. 52 823

    [13]

    Ishihara T, Tabuchi J, Ishikawa S, Yan J W, Enoki M, Matsumoto H 2006 Solid State Ionics 177 1949

    [14]

    Polini R, Falsetti A, Traversa E, Schf O, Kanuth P 2007 J. Eur. Ceram. Soc. 27 4291

    [15]

    Basu S, Chakraborty A, Devi P S, Maiti H S 2005 J. Am. Ceram. Soc. 88 2110

    [16]

    Ji Y P, Gyeong M C 2006 J. Electroceram. 17 787

    [17]

    Li S, Bergman B, Zhao Z 2009 J. Eur. Ceram. Soc. 29 1133

    [18]

    Yamamure Y, Ihara C,Kawasakis S, Sakai H, Suzuki K, Takami S, Kubo M, Miyamoto A 2003 Solid State Ionics 160 93

    [19]

    Xiang J, Wang X H 2008 Acta Phys. Sin. 57 4417 (in Chinese)[向 军、 王晓辉 2008 物理学报 57 4417]

    [20]

    Xiang J, Wei T, Peng T G, Zhang Y, Lou K X, Shen X Q 2009 Acta Phys. Sin. 58 3402 (in Chinese)[向 军、 卫 婷、 彭田贵、 张 誉、 娄可行、 沈湘黔 2009 物理学报 58 3402]

    [21]

    Xiang J, Wei T, Peng T G, Zhang Y, Lou K X, Shen X Q 2009 Acta Chim. Sin. 67 2450 (in Chinese)[向 军、 卫 婷、 彭田贵、 张 誉、 娄可行、 沈湘黔 2009 化学学报 67 2450]

    [22]

    Shannon R D, Prewitt C T 1969 Acta Crystallogr. Sect. B 25 925

    [23]

    Fu Q X, Tietz F, Lersch P, Stǒver D 2006 Solid State Ionics 177 1059

    [24]

    Song H S, Min J H, Kim J, Moon J 2009 J. Power Sources 191 269

    [25]

    Yang S, He T M, He Q 2008 J. Alloys Compd. 450 400

    [26]

    Huang C Y, Huang T J 2002 J. Mater. Sci. 37 4581

    [27]

    Zhang K, Ran R, Ge L, Shao Z P, Jin W Q, Xu N P 2008 J. Membr. Sci. 323 436

    [28]

    Nagai T, Ito W, Sakon T 2007 Solid State Ionics 177 3433

    [29]

    Khrokounov B A, Nfa H, Aldinger F 2006 J. Solid State Electrochem. 10 479

    [30]

    Fu Q X, Xu Z Y, Peng D K, Liu X Q, Meng G Y 2003 J. Mater. Sci. 38 2901

    [31]

    Liu R R, Xu D P, Li S, Lü Z, Xue Y F, Wang D Y, Su W H 2005 J. Jilin Univ. (Sci. Ed. ) 43 658 (in Chinese) [刘润茹、 许大鹏、 李 霜、 吕 喆、 薛燕峰、 王德涌、 苏文辉 2005吉林大学学报 (理学版) 43 658]

  • [1]

    Marques F M B, Kharton V V, Naumovich E N, Shaula A L, Kovalevsky A V, Yaremchenko A A 2006 Solid State Ionics 177 1697

    [2]

    Liu X M, Yang M, Lü Z, Pei L, Liu J, Sun W H 1999 Chin. Phys. 8 690

    [3]

    Shao Z P, Haile S M 2004 Nature 431 170

    [4]

    Wang H, Tablet C, Feldhoff A, Caro J 2005 Adv. Mater. 17 1785

    [5]

    Alberti G, Casciola M 2001 Solid State Ionics 145 3

    [6]

    Xia C R, Rauch W, Chen F L, Liu M L 2002 Solid State Ionics 149 11

    [7]

    Koyama M, Wen C, Masuyama T, Otomo J, Fukunaga H, Yamada K, Eguchi K, Takahashi H 2001 J. Electrochem. Soc. 148 A795

    [8]

    Martiniz-Juarez A, Sanchez L, Chinarro E, Recio P, Pascual C, Jurado J R 2000 Solid State Ionics 135 525

    [9]

    Senaris-Rodriguez M A, Goodenough J B 1995 J. Solid State Chem. 116 224

    [10]

    Lv H, Wu Y J, Huang B, Zhao B Y, Hu K A 2006 Solid State Ionics 177 901

    [11]

    Lü H, Zhao B Y, Sun G, Chen G, Hu K A 2007 Mater. Res. Bull. 42 1999

    [12]

    Asamoto M, Harada N, Iwamoto Y, Yamaura H, Sadaoka Y, Yahiro H 2009 Top. Catal. 52 823

    [13]

    Ishihara T, Tabuchi J, Ishikawa S, Yan J W, Enoki M, Matsumoto H 2006 Solid State Ionics 177 1949

    [14]

    Polini R, Falsetti A, Traversa E, Schf O, Kanuth P 2007 J. Eur. Ceram. Soc. 27 4291

    [15]

    Basu S, Chakraborty A, Devi P S, Maiti H S 2005 J. Am. Ceram. Soc. 88 2110

    [16]

    Ji Y P, Gyeong M C 2006 J. Electroceram. 17 787

    [17]

    Li S, Bergman B, Zhao Z 2009 J. Eur. Ceram. Soc. 29 1133

    [18]

    Yamamure Y, Ihara C,Kawasakis S, Sakai H, Suzuki K, Takami S, Kubo M, Miyamoto A 2003 Solid State Ionics 160 93

    [19]

    Xiang J, Wang X H 2008 Acta Phys. Sin. 57 4417 (in Chinese)[向 军、 王晓辉 2008 物理学报 57 4417]

    [20]

    Xiang J, Wei T, Peng T G, Zhang Y, Lou K X, Shen X Q 2009 Acta Phys. Sin. 58 3402 (in Chinese)[向 军、 卫 婷、 彭田贵、 张 誉、 娄可行、 沈湘黔 2009 物理学报 58 3402]

    [21]

    Xiang J, Wei T, Peng T G, Zhang Y, Lou K X, Shen X Q 2009 Acta Chim. Sin. 67 2450 (in Chinese)[向 军、 卫 婷、 彭田贵、 张 誉、 娄可行、 沈湘黔 2009 化学学报 67 2450]

    [22]

    Shannon R D, Prewitt C T 1969 Acta Crystallogr. Sect. B 25 925

    [23]

    Fu Q X, Tietz F, Lersch P, Stǒver D 2006 Solid State Ionics 177 1059

    [24]

    Song H S, Min J H, Kim J, Moon J 2009 J. Power Sources 191 269

    [25]

    Yang S, He T M, He Q 2008 J. Alloys Compd. 450 400

    [26]

    Huang C Y, Huang T J 2002 J. Mater. Sci. 37 4581

    [27]

    Zhang K, Ran R, Ge L, Shao Z P, Jin W Q, Xu N P 2008 J. Membr. Sci. 323 436

    [28]

    Nagai T, Ito W, Sakon T 2007 Solid State Ionics 177 3433

    [29]

    Khrokounov B A, Nfa H, Aldinger F 2006 J. Solid State Electrochem. 10 479

    [30]

    Fu Q X, Xu Z Y, Peng D K, Liu X Q, Meng G Y 2003 J. Mater. Sci. 38 2901

    [31]

    Liu R R, Xu D P, Li S, Lü Z, Xue Y F, Wang D Y, Su W H 2005 J. Jilin Univ. (Sci. Ed. ) 43 658 (in Chinese) [刘润茹、 许大鹏、 李 霜、 吕 喆、 薛燕峰、 王德涌、 苏文辉 2005吉林大学学报 (理学版) 43 658]

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  • Received Date:  02 April 2010
  • Accepted Date:  21 May 2010
  • Published Online:  15 February 2011

Preparation and electrical properties of double-doped perovskitestructured conducting ceramics Sm0.9Sr0.1Al1-xCoxO3-δ

  • 1. School of Mathematics and Physics, Jiangsu University of Science and Technology, Zhenjiang 212003, China

Abstract: A series of new mixed-conducting ceramics Sm0.9Sr0.1Al1-xCoxO3-δ(SSAC, x=0.2, 0.4, 0.5, 0.6) with perovskite structure were prepared by sintering the precursor powders derived from organic gel process. The effects of sintering temperature and Co doping concentration on the crystal structure, phase composition and electrical properties were also discussed in detail. The X-ray diffraction results show that the over-high sintering temperature or Co doping content will lead to the formation of impure phase with a chemical formula of Sm(Sr)CoO3 in sinters, and the solid solubility limit of Co in this system lies in the range of 50 mol%—60 mol%. The partial substitution of Co for Al in Sm0.9Sr0.1Al1-xCoxO3-δ results in an increase in lattice volume. The measurement results of electrical properties reveal that the conductivities of SSAC ceramics are dominated by p-type conduction, and the conduction behavior conforms to the small polaron hopping transport mechanism. With the increasing sintering temperature, the conductivities of as-prepared samples gradually increase. For the SSAC ceramics with Co content lower than the solid solubility limit, it is observed that their conductivities increase with the increase of Co content while the corresponding apparent activation energies decrease. The prepared single-phase Sm0.9Sr0.1Al0.5Co0.5O3-δ ceramic body by sintering at 1200℃ for 10h has a conductivity of 63.4 S/cm and an apparent activation energy of 0.14eV. These novel SSAC mixed-conducting ceramics with good electrical properties can potentially be used in the field of high temperature electrochemistry.

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