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Gas sensitivity of nanocrystalline nickel ferrite

N. IFTIMIE1,* , E. REZLESCU2, P. D. POPA2, N. REZLESCU2

Affiliation

  1. University “Al.I. Cuza” , B-dul Carol I ,11 ,700506, Iasi, Romania
  2. Institute of Technical Physics, Magnetic Oxides Laboratory, B-dul Mangeron 47, 700050, Iasi, Romania

Abstract

Nanometer-sized materials, which have high surface activity due to their small particle size and enormous surface area, have been widely studied in the field of gas sensors in recent years. The samples were obtained by self-combustion method and were studied using powder X-ray diffraction and scanning electron microscopy. It was investigated the sensitivity of the electrical resistivity to acetone, ethanol, methane (CH4) and liquefied pertroleum gas (LPG). It is observed that the gas sensitivity depends on the temperature and the test gases to be detected..

Keywords

Ferrites, Sensitivity, Gas sensor, Nanocrystalline, X-ray diffraction, Self-combustion method.

Submitted at: March 15, 2006
Accepted at: May 18, 2006

Citation

N. IFTIMIE, E. REZLESCU, P. D. POPA, N. REZLESCU, Gas sensitivity of nanocrystalline nickel ferrite, Journal of Optoelectronics and Advanced Materials Vol. 8, Iss. 3, pp. 1016-1018 (2006)