Ethanol Sensing of La1-xSrxFeO3 (x= 0, 0.1 and 0.3) Prepared by Metal-Organic Complex Decomposition

Authors

  • Thammanoon Thaweechai Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand.
  • Anurat Wisitsoraat Nanoelectronics and MEMS Laboratory, National Electronics and Computer Technology Center, Bangkok 12120, Thailand.
  • Apirat Laobuthee Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand.
  • Nattamon Koonsaeng Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand.

Keywords:

LaFeO3, ethanol-sensing, gas sensor, metal-organic complex, La1-xSrxFeO3 powders

Abstract

The perovskite La1-xSrxFeO3 (x= 0, 0.1 and 0.3) powders were successfully prepared by the decomposition of metal-organic complexes which were synthesized from the reaction of La(NO3)3.6H2O, Fe(NO3)3.9H2O and N(CH2CH2OH)3 at 190°C in ethylene glycol solvent. The amounts of strontium nitrate used as a dopant were varied by 0, 10.0 and 30.0 mol%. The La1-xSrxFeO3 powders were obtained by calcination of metal-organic complexes at 850°C for 4 h and then were characterized by FTIR, XRD, SEM and BET. Based on semiconducting properties La1-xSrxFeO3 films prepared by spin coating were investigated for ethanol sensing. The results showed that 10% Sr(II) doped LaFeO3-based sensor, La0.9Sr0.1FeO3, exhibited the highest sensitivity to ethanol vapour with a minimum concentration of 100 ppm at an operating temperature of 300°C.

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Published

2009-12-31

How to Cite

Thammanoon Thaweechai, Anurat Wisitsoraat, Apirat Laobuthee, and Nattamon Koonsaeng. 2009. “Ethanol Sensing of La1-XSrxFeO3 (x= 0, 0.1 and 0.3) Prepared by Metal-Organic Complex Decomposition”. Agriculture and Natural Resources 43 (5). Bangkok, Thailand:218-23. https://li01.tci-thaijo.org/index.php/anres/article/view/244819.

Issue

Vol. 43 No. 5 (2009): January-December

Section

Research Article

License

online 2452-316X print 2468-1458/Copyright © 2022. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/),
production and hosting by Kasetsart University of Research and Development Institute on behalf of Kasetsart University.