Synthesis and LPG sensing properties of nano-sized cadmium oxide

R. B. Waghulade, P. P. Patil, Renu Pasricha

Research output: Contribution to journalArticle

Abstract

This paper reports the synthesis and liquid petroleum gas (LPG) sensing properties of nano-sized cadmium oxide (CdO). The nano-sized CdO powder was successfully synthesized by using a chemical co-precipitation method using cadmium acetate and the ammonium hydroxide, as starting materials and water as a carrier. The resulting nano-sized powder was characterized by X-ray diffraction (XRD) measurements and the transmission electron microscopy (TEM). The LPG sensing properties of the synthesized nano-sized CdO were investigated at different operating temperatures and LPG concentrations. It was found that the calcination temperature and the operating temperature significantly affect the sensitivity of the nano-sized CdO powder to the LPG. The sensitivity is found to be maximum when the calcination temperature was 400 °C. The sensitivity to 75 ppm of LPG is maximum at an operating temperature 450 °C and it was found to be ∼341%. The response and recovery times were found to be nearly 3-5 s and 8-10 s, respectively. The synthesized nano-sized CdO powder is able to detect up to 25 ppm for LPG with reasonable sensitivity at an operating temperature 450 °C and it can be reliably used to monitor the concentration of LPG over the range (25-75 ppm). The experimental results of the LPG sensing studies reveal that the nano-sized CdO powder synthesized by a simple co-precipitation method is a suitable material for the fabrication of the LPG sensor.

Original languageEnglish (US)
Pages (from-to)594-599
Number of pages6
JournalTalanta
Volume72
Issue number2
DOIs
StatePublished - Apr 30 2007

Fingerprint

Petroleum
Gases
Liquids
Powders
Temperature
Coprecipitation
Calcination
Chemical Precipitation
Ammonium Hydroxide
cadmium oxide
Chemical sensors
Transmission Electron Microscopy
X-Ray Diffraction
Transmission electron microscopy
Fabrication
Recovery
X ray diffraction
Water

Keywords

  • Chemical co-precipitation
  • Gas sensor
  • LPG
  • Nano-sized CdO

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Synthesis and LPG sensing properties of nano-sized cadmium oxide. / Waghulade, R. B.; Patil, P. P.; Pasricha, Renu.

In: Talanta, Vol. 72, No. 2, 30.04.2007, p. 594-599.

Research output: Contribution to journalArticle

Waghulade, R. B. ; Patil, P. P. ; Pasricha, Renu. / Synthesis and LPG sensing properties of nano-sized cadmium oxide. In: Talanta. 2007 ; Vol. 72, No. 2. pp. 594-599.
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