Ionics

, Volume 10, Issue 3–4, pp 244–253 | Cite as

Ag6Mo10O33 — a new silver ion conducting ammonia sensor material

  • S. S. Sunu
  • V. Jayaraman
  • E. Prabhu
  • K. I. Gnanasekar
  • T. Gnanasekaran
Article
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Revised:
Accepted:

Abstract

Electrical and gas sensing properties of Ag6Mo10O33 are investigated for the first time. Wagner’s polarization experiment carried out on this material shows that it is a good silver ion conductor in the temperature range of 533 to 657 K. Studies show that it possesses good selectivity and sensitivity towards ammonia with fast response and retrac times indicating its potential as a sensor material for this gas below its TLV value. Morphological changes associated with this compound when exposed to ammonia are studied by using SEM and the corresponding compositional changes associated with each grain is studied by using EDAX. The results indicate that the compound breaks down when exposed to ammonia. When equilibrated with air the reaction products recombine fast to form the original compound.

Keywords

Ammonia Physical Chemistry Analytical Chemistry Morphological Change Electronic Material 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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References

  1. [1]
    D.B. Dadyburjor, S.S. Jewur and E. Ruckenstien, Catal. Rev. — Sci. Eng.19, 293 (1979).Google Scholar
  2. [2]
    M.A. Larrubia, G. Ramis and G. Busca, Appl. Catalysis B: Environmental27, L145 (2000).Google Scholar
  3. [3]
    C.N. Xu, N. Miura, Y. Ishida, K. Matsuda and N. Yamazoe, Sensors and Actuators B65, 163 (2000).Google Scholar
  4. [4]
    D. Mutschall, K. Holzner and E. Obermeir, Sensors and Actuators B35–36, 320 (1996).Google Scholar
  5. [5]
    M. Ferroni, V. Guidi, G. Martinelli, P. Nelli, M. Sacerdoti and G. Sberveglieri, Sensors and Actuators B48, 285 (1998).Google Scholar
  6. [6]
    S.S. Sunu, E. Prabhu, V. Jayaraman, K.I. Gnanasekar, T.K. Seshagiri and T. Gnanasekaran, Sensors and Actuators B101, 161 (2004).Google Scholar
  7. [7]
    S.S. Sunu, E. Prabhu, V. Jayaraman, K.I. Gnanasekar and T. Gnanasekaran, Sensors and Actuators B94, 189 (2003).Google Scholar
  8. [8]
    C. Wagner, Z. Elektrochem.60, 4 (1956).Google Scholar
  9. [9]
    V. Jayaraman, K.I. Gnanasekar, E. Prabhu, T. Gnanasekaran and G. Periaswami, Sensors and Actuators B55, 147 (1999).Google Scholar
  10. [10]
    S.S. Sunu et al., J. Mater. Res. (Manuscript under preparation).Google Scholar
  11. [11]
    B.M. Gatehouse and P. Leverett, Chem. Commun.19, 1093 (1969).Google Scholar
  12. [12]
    B.M. Gatehouse and P. Leverett, J. Chem. Soc. A 1398 (1968).Google Scholar
  13. [13]
    R. Kohmuller and J.P. Faurie, Bull. Chim. Soc. France11, 4379 (1968).Google Scholar
  14. [14]
    B.M. Gatehouse and P. Leverett, J. Solid State Chem.1, 484 (1970).Google Scholar
  15. [15]
    B.A. Boukamp, Solid State Ionics20, 31 (1986).CrossRefGoogle Scholar
  16. [16]
    L. Volpe and M. Boudart, J. Solid State Chem.59, 332 (1985).Google Scholar

Copyright information

© IfI - Institute for Ionics 2004

Authors and Affiliations

  • S. S. Sunu
    • 1
  • V. Jayaraman
    • 1
  • E. Prabhu
    • 1
  • K. I. Gnanasekar
    • 1
  • T. Gnanasekaran
    • 1
  1. 1.Materials Chemistry DivisionIndira Gandhi Centre for Atomic ResearchKalpakkamIndia

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