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Vol. 25 No. 4 (2013): Vol 25 Issue 4

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Effect of CaTiO3 Crystal Structure and Cathodic Morphological Structure on the Electrolysis

https://doi.org/10.14233/ajchem.2013.13162
Liyue Ru
College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, P.R. China ; Medical College of Chuxiong, Yunnan 675000, P.R. China
Zequan Li
College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, P.R. China ; College of Materials Science and Engineering, Chongqing University, Chongqing 400044, P.R. China
Chenguang Bai
College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, P.R. China ; College of Materials Science and Engineering, Chongqing University, Chongqing 400044, P.R. China
Na Zhang
College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, P.R. China
Haihua Wang
College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, P.R. China

Corresponding Author(s) : Zequan Li

lzq0313@cqu.edu.cn

Asian Journal of Chemistry, Vol. 25 No. 4 (2013): Vol 25 Issue 4

Abstract

TiO2 and CaTiO3 were electrolyzed in molten CaCl2 to investigate the different electrochemical behaviours of in situ and ex-situ CaTiO3 and the caused reason of the difference. The products were detected by X-ray diffraction, scanning electron microscope and BET specific surface area analyzer. It was shown that, electrolysis of ex-situ CaTiO3 as starting material exhibited remarkable advantages for the crystal structure and morphological structure. Ex-situ CaTiO3 has been deviated before the process, but the crystal distortion of in situ CaTiO3 formed via TiO2 is later than ex-situ CaTiO3, lattice distortion is helpful for the removal of Ca2+ and O2-, which is good for the electrolysis of ex-situ CaTiO3; the specific surface area of ex-situ CaTiO3 is larger than in situ CaTiO3 formed via TiO2, which may promote the formation of more reactive sites; the porosity of ex-situ CaTiO3 is larger than in situ CaTiO3 formed via TiO2, owning more and larger pore is favorable of ion migration.

Keywords

CaTiO3 Crystal structure Pore structure Reactive sites
Ru, L., Li, Z., Bai, C., Zhang, N., & Wang, H. (2012). Effect of CaTiO3 Crystal Structure and Cathodic Morphological Structure on the Electrolysis. Asian Journal of Chemistry, 25(4), 1814–1818. https://doi.org/10.14233/ajchem.2013.13162
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References
  1. G.Z. Chen, D.J. Fray and T.W. Farthing, Nature, 407, 361 (2000).
  2. R. Barnett, K.T. Kilby and D.J. Fray, Metall. Mater. Trans. B, 40B, 150 (2009).
  3. Z.Q. Li, N. Zhang, C.G. Bai, D.M. Jian, L.Y. Ru and H.H. Wang, Asian J. Chem., 23, 4932 (2011).
  4. P. Tripathy, M. Gauthier and D.J. Fray, Metall. Mater. Trans. B, 38B, 893 (2007).
  5. S.Q. Jiao and D.J. Fray, Metall. Mater. Trans. B, 41B, 74 (2010).
  6. S. Tan, K. Aydinol, T. Ozturk and I. Karakaya, J. Alloys Comp., 504, 134 (2010).
  7. C. Schwandt, D.T.L. Alexander and D.J. Fray, Electrochim. Acta, 54, 3819 (2009).
  8. C. Schwandt and D.J. Fray, Electrochim. Acta, 51, 66 (2005).
  9. D.T.L. Alexander, C. Schwandt and D.J. Fray, Electrochim. Acta, 54, 2933 (2006).
  10. B.X. Wang, X.Z. Lan, X.C. Zhao and J. Zhang, J. Rare Met., 34, 618 (2010) in Chinese.
  11. R. Bhagat, D. Dye, S.L. Raghunathan, R.J. Talling, D. Inman, B.K. Jackson, K.K. Rao and R.J. Dashwood, Acta Mater., 58, 5057 (2010).
  12. D.T.L. Alexander, C. Schwandt and D.J. Fray, Electrochim. Acta, 56, 3286 (2011).
  13. X.C. Lang, H.W. Xie, X.Y. Zou, P.H. Kim and Y.C. Zhai, Adv. Mater. Res., 284-286, 208 (2011).
  14. K. Jiang, X.H. Hu, M. Ma, D.H. Wang, G.H. Qiu, X.H. Jin and Z. Chen, Angew. Chem. Int. Ed., 45, 428 (2006).
  15. W.K. Ge and W.Y. Jia, Trans, Beijing, Peking University Press, 5 (2006). in Chinese.
  16. G.Z. Wang, Sci. Technol. Eng., 7, 2018 (2007) (in Chinese).
  17. D.M. Zhang, W.S. Yan, Z.C. Zhong, F.X. Yang, K.Y. Zheng and Z.H. Li, Acta Phys. Sin., 53, 1316 (2004) (in Chinese).
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