Journal of Materials Science

, Volume 50, Issue 2, pp 644–651 | Cite as

The role of catalytic cobalt-modified lanthanum ferrite nano-crystals in selective sensing of carbon monoxide

Original Paper


In the present work we have investigated the carbon monoxide (CO) sensing characteristics of cobalt-modified lanthanum iron oxide perovskite sensors. Nano-particles of lanthanum ferrite and cobalt-modified lanthanum ferrites have been synthesized by auto-combustion route. We have reported that Co-modified LaFeO3 sensor is capable to sense low-concentration (<100 ppm) CO selectively at operating temperature as low as 100 °C. The selective CO sensing characteristics at lower operating temperature are correlated to the superior catalytic activities of these perovskite toward CO oxidation. For these perovskite sensors it was demonstrated that the lower metal–oxygen binding energy, favorable d orbital electron configuration of transition metal cation/(s), and the nature of surface composition are the three dominant factors that control the catalytic activity and thereby the CO sensing characteristics.


Perovskite C4H10 Sensor Surface LaFeO3 LaCoO3 
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The above research work is partially supported by a research grant from IBSA-DST, Government of India.


  1. 1.
    Lim SK, Hwang S-H, Kim S, Park H (2011) Preparation of ZnO nanorods by microemulsion synthesis and their application as a CO gas sensor. Sens Actuators B 160:94–98CrossRefGoogle Scholar
  2. 2.
    Liao L, Zhang Z, Yan B, Zheng Z, Bao QL, Wu T, Li CM, Shen ZX, Zhang JX, Gong H, Li JC (2009) Multifunctional CuO nanowire devices: p-type field effect transistors and CO gas sensors. Nanotechnology 20:085203–085208CrossRefGoogle Scholar
  3. 3.
    Choia J-K, Hwang I-S, Kim S-J, Park J-S, Park S-S, Dong K-Y, Ju B-K, Lee JH (2011) Gas sensing characteristics of Sb-doped SnO2 nanofibers. J Sens Sci Tech 20:1–7CrossRefGoogle Scholar
  4. 4.
    Huang H, Ong CY, Guo J, White T, Tse MS, Tana OK (2010) Pt surface modification of SnO2 nanorod arrays for CO and H2 sensors. Nanoscale 2:1203–1207CrossRefGoogle Scholar
  5. 5.
    Mukherjee K, Majumder SB (2010) Reducing gas sensing behavior of nano-crystalline magnesium–zinc ferrite powders. Talanta 81:1826–1832CrossRefGoogle Scholar
  6. 6.
    Song P, Wang Q, Zhang Z, Yang Z (2010) Synthesis and gas sensing properties of biomorphic LaFeO3 hollow fibers templated from cotton. Sens Actuators B 147:248–254CrossRefGoogle Scholar
  7. 7.
    Mu Z, Zhang L, Li X, Hu J (2011) Studies on electrical properties and CO-sensing characteristics of La0.9Pb0.1FeO3. J Rare Earths 29:374–377CrossRefGoogle Scholar
  8. 8.
    Salker AV, Choi N-J, Kwak J-H, Joo B-S, Lee D-D (2005) Thick films of In, Bi and Pd metal oxides impregnated in LaCoO3 perovskite as carbon monoxide sensor. Sens Actuators B 106:461–467CrossRefGoogle Scholar
  9. 9.
    Song P, Wang Q, Yang Z (2009) The effects of annealing temperature on the CO-sensing property of perovskite La0.8Pb0.2Fe0.8Cu0.2O3 nanoparticles. Sens Actuators B 141:109–115CrossRefGoogle Scholar
  10. 10.
    Toan NN, Saukko S, Lantto V (2003) Gas sensing with semi-conducting perovskite oxide LaFeO3. Phys B 327:279–282CrossRefGoogle Scholar
  11. 11.
    Zhang L, Hu J, Song P, Qin H, An K, Wang X, Jiang M (2006) CO-sensing properties of perovskite La0.68Pb0.32FeO3 nano-materials. Sens Actuators B 119:315–318CrossRefGoogle Scholar
  12. 12.
    Zhang R, Hu J, Zhao M, Han Z, Wei J, Wu Z, Qin H, Wang K (2010) Electrical and CO-sensing properties of SmFe0.7Co0.3O3 perovskite oxide. Mater Sci Eng B 171:139–143CrossRefGoogle Scholar
  13. 13.
    Zhang R, Hu J, Han Z, Zhao M, Wu Z, Zhang Y, Qin H (2010) Electrical and CO-sensing properties of NdFe1-xCoxO3 perovskite system. J Rare Earths 28:591–595CrossRefGoogle Scholar
  14. 14.
    Yamazoe N, Sakai G, Shimanoe K (2003) Oxide semiconductor gas sensors. Catal Surv Asia 7:63–75CrossRefGoogle Scholar
  15. 15.
    Mukherjee K, Majumder SB (2010) Hydrogen sensing characteristics of wet chemical synthesized tailored Mg0.5Zn0.5Fe2O4 nanostructures. Nanotechnology 21:255504–255509CrossRefGoogle Scholar
  16. 16.
    Yamazoe N, Fuchigami J, Kishikawa M, Seiyama T (1979) Interaction of tin oxide surface with O2, H2O and H2. Sur Sci 86:335–344CrossRefGoogle Scholar
  17. 17.
    Barsan N, Weimar U (2001) Conduction model of metal oxide gas sensors. J Electroceram 7:143–167CrossRefGoogle Scholar
  18. 18.
    Pena MA, Fierro JLG (2001) Chemical structures and performance of perovskite oxides. Chem Rev 101:1981–2017CrossRefGoogle Scholar
  19. 19.
    Fierro JLG (1990) Structure and composition of perovskite surface in relation to adsorption and catalytic properties. Catal Today 8:153–174CrossRefGoogle Scholar
  20. 20.
    Tamaki J, Zhang Z, Fujimori K, Akiyama M, Harada T, Miura N, Yamazoe N (1994) Grain-size effects in tungsten oxide-based sensor for nitrogen oxides. J Electrochem Soc 141:2207–2210CrossRefGoogle Scholar
  21. 21.
    Korotcenkov G (2007) Metal oxides for solid-state gas sensors: what determines our choice? Mater Sci Eng B 139:1–23CrossRefGoogle Scholar
  22. 22.
    Mukherjee K, Majumder SB (2009) Analyses of response and recovery kinetics of zinc ferrite as hydrogen gas sensor. J Appl Phys 106:064912–064922CrossRefGoogle Scholar
  23. 23.
    Song P, Qin H, Liu X, Huang S, Zhang R, Hu J, Jiang M (2006) Structure, electrical and CO-sensing properties of the La0.8Pb0.2Fe1−xCoxO3 system. Sens Actuators B 119:415–418CrossRefGoogle Scholar
  24. 24.
    Siemons M, Simon U (2007) Gas sensing properties of volume-doped CoTiO3 synthesized via polyol method. Sens Actuators B 126:595–603CrossRefGoogle Scholar
  25. 25.
    Shimizu T (1980) Effect of electronic structure and tolerance factor on CO oxidation activity of perovskite oxides. Chem Lett 1:1–4CrossRefGoogle Scholar
  26. 26.
    Wei Z-X, Xua Y-Q, Liu H-Y, Hu C-W (2009) Preparation and catalytic activities of LaFeO3 and Fe2O3 for HMX thermal decomposition. J Hazard Mater 165:1056–1061CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Materials Science CentreIndian Institute of Technology KharagpurKharagpurIndia

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