MSA  Vol.4 No.12 , December 2013
Enhanced Thermoelectric Properties of BiCoO3 by Nickel Substitution
ABSTRACT

Micro crystalline materials of BiCoO3 and Ni0.5Bi0.5CoO3 have been prepared by solid state reaction technique. XRD studies of these polycrystalline materials confirmed the cubic structure with 197 I 23 space group. The substitution of nickel in place of bismuth resulted in lattice contraction. The thermoelectric properties were investigated in the temperature ranging from 300°C to 700°C. The samples showed positive Seebeck coefficient. Nickel substitution with Bismuth is found to decrease the Seebeck coefficient and thermal conductivity but increase the electrical conductivity. The figure of merit (ZT) of the material was enhanced on nickel substitution. The ZT values increased with the increase of temperature which enables its utility in high temperature thermoelectric applications.


Cite this paper
T. Ramachandran, N. Rajeevan and P. Pradyumnan, "Enhanced Thermoelectric Properties of BiCoO3 by Nickel Substitution," Materials Sciences and Applications, Vol. 4 No. 12, 2013, pp. 816-821. doi: 10.4236/msa.2013.412104.
References
[1]   L. E. Bell, “Cooling, Heating, Generating Power, and Recovering Waste Heat with Thermoelectric Systems,” Science, Vol. 321, No. 5895, 2008, pp. 1457-1461.
http://dx.doi.org/10.1126/science.1158899

[2]   G. J. Snyder and E. S. Toberer, “Complex Thermoelectric Materials,” Nature Materials, Vol. 7, No. 2, 2008, pp. 105-114. http://dx.doi.org/10.1038/nmat2090

[3]   K .Koumoto, I. Teraski and R. Funahashi, “Complex Oxide Materials for Potential Thermoelectric Applications,” MRS Bulletin, Vol. 31, No. 3, 2006, pp. 206-210.
http://dx.doi.org/10.1557/mrs2006.46

[4]   I. Terasaki, Y. Sasago and K. Uchinokura, “Large Thermoelectric Power in NaCo2O4 Single Crystals,” Physical Review B, Vol. 56, No. 20, 1997, pp. 12685-126387.
http://dx.doi.org/10.1103/PhysRevB.56.R12685

[5]   A. Maignan, S. Hebert, L. Pi, D. Pelloquin, C. Martin, C. Michel, M. Hervieu and B. Raveau, “Perovskite Manganites and Layered Cobaltites: Potential Materials for Thermoelectric Applications,” Crystal Engineering, Vol. 5, No. 3-4, 2002, pp. 365-382.
http://dx.doi.org/10.1016/S1463-0184(02)00048-5

[6]   Y. F. Zhang, J. X. Zhang and Q. M. Lu, “Synthesis of Highly Textured Ca3Co4O9 Ceramics by Spark Plasma Sintering,” Ceramics International, Vol. 33, No. 7, 2007, pp. 1305-1308.
http://dx.doi.org/10.1016/j.ceramint.2006.04.011

[7]   P. M. Raccah and J. B. Goodenough, “First-Order Localized-Electron Collective-Electron Transition in LaCoO3,” Physical Review, Vol. 155, No. 3, 1967, pp. 932-943.

[8]   V. H. Bhide, D. S. Rajoria, G. Ramma Rao and C. N. R. Rao, “Spin-State Equilibria in Holmium Cobaltate,” Physical Review, Vol. 6, 1972, pp. 1021.

[9]   F. Li and J.-F. Li, “Effect of Ni Substitution on Electrical and Thermoelectric Properties of LaCoO3 Ceramics,” Ceramics International, Vol. 37, No. 1, 2011, pp. 105-110. http://dx.doi.org/10.1016/j.ceramint.2010.08.024

[10]   M. Mehring, “From Molecules to Bismuth Oxide-Based Materials: Potential Homoand Heterometallic Precursors and Model Compounds,” Coordination Chemistry Reviews, Vol. 251, No. 7-8, 2007, pp. 974-1006.
http://dx.doi.org/10.1016/j.ccr.2006.06.005

[11]   F. J. DiSalvo, “Thermoelectric Cooling and Power Generation,” Science, Vol. 285, No. 5428, 1999, pp. 703-706.
http://dx.doi.org/10.1126/science.285.5428.703

[12]   P. M. Chaikin and G. Beni, “Thermopower in Correlated Hopping Regime,” Physical Review B, Vol. 13, No. 2, 1976, pp. 647-651.
http://dx.doi.org/10.1103/PhysRevB.13.647

[13]   W. Koshibae, K. Tsutsui and S. Maekawa, “Thermopower in Cobalt Oxides,” Physical Review B, Vol. 62, No., 2000, pp. 6869-6872.
http://dx.doi.org/10.1103/PhysRevB.62.6869

[14]   I. Alvarez, J. L. Martinez, M. L. Veiga and C. Pico, “Synthesis, Structural Characterization, and Electronic Properties of the LaNi1-xWxO3 (0 ≤ x ≤ 0.25) Perovskite-Like System,” Journal of Solid State Chemistry, Vol. 125, No. 1, 1996, pp. 47-53.
http://dx.doi.org/10.1006/jssc.1996.0263

[15]   A. Mineshige, M. Kobune, S. Fujii, Z. Ogumi, M. Inaba, T. Yao and K. Kikuchi, “Metal—Insulator Transition and Crystal Structure of La1_xSrxCoO3 as Functions of SrContent, Temperature, and Oxygen Partial Pressure,” Journal of Solid State Chemistry, Vol. 142, No. 2, 1999, pp. 374-381. http://dx.doi.org/10.1006/jssc.1998.8051

[16]   Y. Wang, Y. Sui, J. G. Cheng, X. J. Wang, J. P. Miao, Z. G. Liu, Z. N. Qian and W. H. Su, “High Temperature Transport and Thermoelectric Properties of Ag-Substituted Ca3Co4O9+δ System,” Journal of Alloys and Compounds, Vol. 448, No. 1-2, pp. 1-5.
http://dx.doi.org/10.1016/j.jallcom.2006.10.047

[17]   Q. Yao, D.L. Wang, L.D. Chen, X. Shi and M. Zhou, “Effects of Partial Substitution of Transition Metals for Cobalton the High-Temperature Thermoelectric Properties of Ca3Co4O9+δ,” Journal of Applied Physics, Vol. 97, No. 10, 2005, Article ID: 103905.

[18]   R. Robert, L. Bocher, B. Sipos, M. Dobeli and A. Weidenkaff, “Ni-Doped Cobaltates as Potential Materials for High Temperature Solar Thermoelectric Converters,” Progress in Solid State Chemistry, Vol. 35, No. 2-4, 2007, pp. 447-455.
http://dx.doi.org/10.1016/j.progsolidstchem.2007.01.020

 
 
Top