Structural, sintering and electrical properties of Cr-doped La0.6Sr0.4CrxFe1-xO3-δ (x = 0.10, 0.20) oxides

J. Mater. Sci. Technol. ›› 2012, Vol. 28 ›› Issue (7): 654-660.

Structural, sintering and electrical properties of Cr-doped La0.6Sr0.4CrxFe1-xO3-δ (x = 0.10, 0.20) oxides

鲁辉

中国科学院大连化学物理研究所

收稿日期:2011-05-12 修回日期:2011-11-23 出版日期:2012-07-28 发布日期:2012-07-28
通讯作者: 鲁辉

Structural, Sintering and Electrical Properties of Cr-doped La_0.6Sr_0.4Cr_xFe_1-xO_3-δ (x=0.10, 0.20) Oxides

Hui Lu^1,2), Linlin Zhu^1,3), Jong Pyo Kim²⁾, Sou Hwan Son²⁾, Jung Hoon Park²⁾

1) State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
2) Greenhouse Gas Research Center, Climate Change Technology Research Division, Korea Institute of Energy Research, Daejeon 305-343, Korea
3) College of Chemistry and Materials Science, Liaoning University of Petroleum and Chemical Technology, Fushun 113001, China

Received:2011-05-12 Revised:2011-11-23 Online:2012-07-28 Published:2012-07-28
Contact: Hui Lu, Jung Hoon Park
Supported by:
the “100 Talents Program" of Dalian Institute of Chemical Physics, CAS, China, and the Ministry of Education, Science and Technology of Korea

摘要/Abstract

摘要： The perovskite Cr-doped La0.6Sr0.4CrxFe1-xO3-δ (x = 0.10, 0.20) oxides have been synthesized via the citrate gel method. The perovskite forming of the La0.6Sr0.4CrxFe1-xO3-δ (x = 0.10, 0.20) oxides were studied by thermogravimetric analysis (TG), differential scanning calorimetry (DSC), and x-ray diffraction (XRD). Structural and chemical stability under H2–containing helium atmospheres of La0.6Sr0.4CrxFe1-xO3-δ (x = 0.10, 0.20) were investigated by TG and XRD. The sintering microstructures of the perovskite La0.6Sr0.4CrxFe1-xO3-δ (x = 0.10, 0.20) ceramics were investigated by scanning electron microscope (SEM), and the electrical conductivities of both oxide ceramics were also measured up to 900 ℃. The results demonstrate that the chemical stability of the Co-free La0.6Sr0.4CrxFe1-xO3-δ (x = 0.10, 0.20) oxides is significantly improved compared to the Co-containing La0.6Sr0.4Co0.2Fe0.8O3-δ and Ba0.5Sr0.5Co0.8Fe0.2O3-δ oxides. The incorporation of Cr cations in the B-site of the pervoskite oxides results in the improved structural and chemical stability of the as-synthesized La0.6Sr0.4CrxFe1-xO3-δ (x = 0.10, 0.20) oxides.

Abstract: The perovskite Cr-doped La_0.6Sr_0.4Cr_xFe_1-xO_3-δ(x=0.10, 0.20) oxides were synthesized via the citrate gel method. The perovskite forming of the La_0.6Sr_0.4Cr_xFe_1-xO_3-δ(x=0.10, 0.20) oxides were studied by thermogravimetric analysis (TG), differential scanning calorimetry (DSC), and X-ray diffraction (XRD). Structural and chemical stability under H2-containing helium atmospheres of La_0.6Sr_0.4Cr_xFe_1-xO_3-δ(x=0.10, 0.20) were investigated by TG and XRD. The sintering microstructures of the perovskite La_0.6Sr_0.4Cr_xFe_1-xO_3-δ(x=0.10, 0.20) ceramics were investigated by scanning electron microscopy (SEM), and the electrical conductivities of both oxide ceramics were also measured up to 900 ±C. The results demonstrated that the chemical stability of the Co-free La_0.6Sr_0.4Cr_xFe_1-xO_3-δ (x=0.10, 0.20) oxides was significantly improved compared to the Co-containing La_0.6Sr_0.4Cr_xFe_1-xO_3-δand Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3-δoxides. The incorporation of Cr cations in the B-site of the pervoskite oxides resulted in the improved structural and chemical stability of the as-synthesized La_0.6Sr_0.4Cr_xFe_1-xO_3-δ(x=0.10, 0.20) oxides.

Key words: Perovskite, Crystal structure, Sintering, Electrical conductivity

鲁辉. Structural, sintering and electrical properties of Cr-doped La0.6Sr0.4CrxFe1-xO3-δ (x = 0.10, 0.20) oxides[J]. J. Mater. Sci. Technol., 2012, 28(7): 654-660.

Hui Lu, Linlin Zhu, Jong Pyo Kim, Sou Hwan Son, Jung Hoon Park. Structural, Sintering and Electrical Properties of Cr-doped La_0.6Sr_0.4Cr_xFe_1-xO_3-δ (x=0.10, 0.20) Oxides[J]. J Mater Sci Technol, 2012, 28(7): 654-660.

参考文献

[1 ] H.J.M. Bouwmeester and A.J. Burggraaf: Fundamentals of Inorganic Membrane Science and Technology, eds A.J. Burggraaf and L. Cot, Elsevier, Amsterdam, 1996, 435.

[2 ] K. Li: Ceramic Membranes for Reaction and Separation, John Wiley & Sons, Chichester, 2007, 169.

[3 ] J. Sunarso, S. Baumann, J.M. Serra, W.A. Meulenberg, S.M. Liu, Y.S. Lin and J.C. Diniz da Costa: J. Membr. Sci., 2008, 320, 13.

[4 ] H.J.M. Bouwmeester: Catal. Today, 2003, 82, 141.

[5 ] M. Liu, R. Wang, D.F. Li and D.T. Liang: Mater. Chem. Phys., 2007, 102, 132.

[6 ] Z.G. Wang, N.T. Yang, B. Meng, X.Y. Tan and K. Li: Ind. Eng. Chem. Res., 2009, 48, 510.

[7 ] Z.P. Shao, W.S. Yang, Y. Cong, H. Dong, J.H. Tong and G.X. Xiong: J. Membr. Sci., 2000, 172, 177.

[8 ] V.V. Kharton, S.B. Li, A.V. Kovalevsky, A.P. Viskup, E.N. Naumovich and A.A. Tonoyan: Mater. Chem. Phys., 1998, 53, 6.

[9 ] W.Q. Jin, S.G. Li, P. Huang, N.P. Xu and J. Shi: J. Membr. Sci., 2000, 170, 9.

[10] H. Lu, J.H. Tong, Y. Cong and W.S. Yang: Catal. Today, 2005, 104, 154.

[11] J.H. Park, J.P. Kim, H.T. Kwon and J.S. Kim: Desalination, 2008, 233, 73.

[12] H. Lu, J.P. Kim, S.H. Son and J.H. Park: Mater. Sci. Eng. B, 2009, 163, 151.

[13] H. Lu, J.P. Kim, S.H. Son and J.H. Park: Mater. Sci. Eng. B, 2010, 166, 135.

[14] P.Y. Zeng, R. Ran, Z.H. Chen, W. Zhou, H.X. Gu, Z.P. Shao and S.M. Liu: J. Alloy. Compd., 2008, 455, 465.

[15] X.Z. Chen, H.F. Liu, Y.Y. Wei, J. Caro and H.H. Wang: J. Alloy. Compd., 2009, 484, 386.

[16] P.Y. Zeng, R. Ran, Z.H. Chen, H.X. Gu, Z.P. Shao, J.C. Diniz da Costa and S.M. Liu: J. Membr. Sci., 2007, 302, 171.

[17] S.P. Scott, D. Mantzavinos, A. Hartley, M. Sahibzada and I.S. Metcalfe: Solid State Ionics, 2002, 152/153, 777.

[18] S. Diethelm and J. van Herle: J. Eur. Ceram. Soc., 2004, 24, 1319.

[19] Q. Zeng, Y.B. Zuo, C.G. Fan and C.S. Chen: J. Membr. Sci., 2009, 335, 140.

[20] A. Leo, S. Liu, J.C. Diniz da Costa and Z.P. Shao: Sci. Technol. Adv. Mater., 2006, 7, 819.

[21] H. Lu, L.L. Zhu, J.P. Kim, S.H. Son and J.H. Park: Solid State Ionics, 2012, 209/210, 24.

[22] H.H. Wang, Y. Cong and W.S. Yang: Catal. Today, 2003, 82, 157.

[23] E. Girdauskaite, H. Ullmann, M. Al Daroukh, V. Vashook, M. BÄulow and U. Guth: J. Solid State Electrochem., 2007, 7, 469.

[24] H.H. Wang, Y. Cong and W.S. Yang: J. Membr. Sci., 2002, 210, 259.

[25] S.G. Li, W.Q. Jin, P. Huang, N.P. Xu, J. Shi and Y.S. Lin: J. Membr. Sci., 2000, 166, 51.

[26] M. Rebeilleau-Dassonneville, S. Rosini, A.C. van Veen, D. Farrusseng and C. Mirodatos: Catal. Today, 2005, 104, 131.

[27] H. Lu, Y. Cong and W.S. Yang: Solid State Ionics, 2006, 177, 595.

[28] A.C. van Veen, M. Rebeilleau, D. Farrusseng and C. Mirodatos: Chem. Commun., 2003, 1, 32.

[29] A. Mineshige, J. Izutsu, M. Nakamura, K. Nigaki, J. Abe, M. Kobune, S. Fujii and T. Yazawa: Solid State Ionics, 2005, 176, 1145.

[30] Y.S.Wang, S.R.Wang, Z.R.Wang, T.L.Wen and Z.Y. Wen: J. Alloy. Compd., 2007, 428, 286.

[31] S. McIntosh, J.F. Vente, W.G. Haije, D.H.A. Blank and H.J.M. Bouwmeester: Chem. Mater., 2006, 18, 2187.

[32] W. Zhou, Z.P. Shao, R. Ran, P.Y. Zeng, H.X. Gu, W.Q. Jin and N.P. Xu: J. Power Sources, 2007, 168, 330.

Structural, sintering and electrical properties of Cr-doped La0.6Sr0.4CrxFe1-xO3-δ (x = 0.10, 0.20) oxides

Structural, Sintering and Electrical Properties of Cr-doped La_0.6Sr_0.4Cr_xFe_1-xO_3-δ (x=0.10, 0.20) Oxides

RichHTML

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 0

编辑推荐

Metrics

本文评价

Structural, sintering and electrical properties of Cr-doped La0.6Sr0.4CrxFe1-xO3-δ (x = 0.10, 0.20) oxides

Structural, Sintering and Electrical Properties of Cr-doped La0.6Sr0.4CrxFe1-xO3-δ (x=0.10, 0.20) Oxides

RichHTML

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 0

编辑推荐

Metrics

本文评价

Structural, Sintering and Electrical Properties of Cr-doped La_0.6Sr_0.4Cr_xFe_1-xO_3-δ (x=0.10, 0.20) Oxides