Skip to main content
SpringerLink
Log in

Effect of synthesis condition and annealing on the sensitivity and stability of gas sensors made of Zn-doped γ-Fe2O3 particles

  • Rapid Communication
  • Published:
Korean Journal of Chemical Engineering Aims and scope Submit manuscript

Abstract

Gas sensors made of flame-synthesized Zn-doped γ-Fe2O3 nanoparticles were found to have high sensitivity and high aging resistance. Zinc-doped γ-Fe2O3 nanoparticles and microparticles were synthesized by flame spray pyrolysis (FSP). Gas sensors were fabricated with as-synthesized particles, and with particles that had been annealed. The sensors’ response to acetone vapor and H2 was measured as fabricated, and measured again after the sensors were aged for three days. The sensors made from as-synthesized particles showed a gas sensing sensitivity 20 times higher than the literature value. However, sensors made of microparticles lost their sensing ability after three days of aging; sensors made of nanoparticles retained their gas sensing capability after aging. Sensors made of annealed particles did not have significant gas sensing capabilities. Analysis using the William and Hall method showed that the microstrains decreased significantly in both H2/O2 and H2/Air flame synthesized particles after annealing. The results showed that sensors made of flame-synthesized particles have much higher sensitivity than sensors made of particles previously reported. Especially, sensors made of flame-synthesized nanoparticles are resistant towards aging. This aging resistance may be attributed to the particles’ ability to retain their microstrains.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. N. Barsan, D. Koziej and U. Weimar, Sensors and Actuators BChemical, 121(1), 18 (2007).

    Article  CAS  Google Scholar 

  2. H. P. Yang and Y. F. Zhu, Biosensors & Bioelectronics, 22(12), 2989 (2007).

    Article  CAS  Google Scholar 

  3. Z.H. Jing, Materials Science and Engineering B-Solid State Materials for Advanced Technology, 133(1–3), 213 (2006).

    CAS  Google Scholar 

  4. S.W. Tao, X.Q. Liu, X. F. Chu and Y. S. Shen, Sensors and Actuators B-Chemical, 61(1–3), 33 (1999).

    Article  Google Scholar 

  5. Z. H. Jing, Mater. Lett., 60(28), 3315 (2006).

    Article  CAS  Google Scholar 

  6. Z. Jiao, S.Y. Wang, L. F. Bian and J.H. Liu, Mater. Res. Bullet., 35(5), 741 (2000).

    Article  CAS  Google Scholar 

  7. N. Yamazoe, Sensors and Actuators B-Chemical, 5(1–4), 7 (1991).

    Article  Google Scholar 

  8. T. Sahm, L. Madler, A. Gurlo, N. Barsan, S. E. Pratsinis and U. Weimar, Sensors and Actuators B-Chemical, 98(2–3), 148 (2004).

    Article  CAS  Google Scholar 

  9. G. Korotcenkov, Materials Science and Engineering B-Solid State Materials for Advanced Technology, 139(1), 1 (2007).

    CAS  Google Scholar 

  10. Z.M. Jarzebski and J. P. Marton, J. Electrochem. Society, 123(7), C199 (1976).

    Article  Google Scholar 

  11. M. Graf, A. Gurlo, N. Barsan, U. Weimar and A. Hierlemann, Journal of Nanoparticle Research, 8(6), 823 (2006).

    Article  CAS  Google Scholar 

  12. Y. Shimizu and M. Egashira, Mrs Bull., 24(6), 18 (1999).

    CAS  Google Scholar 

  13. W. Cao, O.K. Tan, W. Zhu, B. Jiang and C.V.G. Reddy, Sensors and Actuators B-Chemical, 77(1–2), 421 (2001).

    Article  Google Scholar 

  14. B. Guo and Z. P. Luo, Journal of the American Ceramic Society, 91(5), 1653 (2008).

    Article  CAS  Google Scholar 

  15. C. Z. Wu, P. Yin, X. Zhu, C. Z. OuYang and Y. Xie, Journal of Physical Chemistry B., 110(36), 17806 (2006).

    Article  CAS  Google Scholar 

  16. S. Nicoletti, L. Dori, F. Certicelli, M. Leoni and P. Scardi, Journal of the American Ceramic Society, 82(5), 1201 (1999).

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, Korea Military Academy, Seoul, Korea

    Taeyang Kim

  2. Department of Mechanical Engineering, Texas A&M University, College Station, Texas, USA

    Andrew Sharp & Bing Guo

Authors
  1. Taeyang Kim
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Andrew Sharp
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Bing Guo
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Taeyang Kim.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kim, T., Sharp, A. & Guo, B. Effect of synthesis condition and annealing on the sensitivity and stability of gas sensors made of Zn-doped γ-Fe2O3 particles. Korean J. Chem. Eng. 27, 1003–1009 (2010). https://doi.org/10.1007/s11814-010-0154-2

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11814-010-0154-2

Key words

Search

Navigation