Novel Sensing Approach for LPG Leakage Detection-Part II

Effects of Particle Size, Composition, and Coating Layer Thickness

Anindya Nag, Asif Iqbal Zia, Xie Li, Subhas Chandra Mukhopadhyay*, Jurgen Kosel

*Corresponding author for this work

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Prominent research has been going on to develop a low-cost, efficient gas sensing system. This paper presents a continuation of our earlier research work done to develop a new sensing approach for gas detection at ambient conditions. This paper exhibits the optimization of the response time of the sensor by inhabiting characteristic changes such as variation in the concentration of the dispersion medium, thickness of the coating, and the size of the dispersed medium. Different concentrations of the dispersion medium in the coated suspension were tested to determine the optimal composition required to achieve the highest sensitivity of the tin oxide (SnO2) layer toward the tested gas. The control over adsorption and desorption of the gas molecules in the coated layer was achieved by investigating the particle size of the dispersed medium. The response time of the coated sensor was encouraging and owns a promising potential to the development of a more efficient gas sensing system.

Original languageEnglish
Article number7312887
Pages (from-to)1088-1094
Number of pages7
JournalIEEE Sensors Journal
Volume16
Issue number4
DOIs
Publication statusPublished - 15 Feb 2016
Externally publishedYes

Keywords

  • coating
  • dispersion medium
  • electrochemical impedance spectroscopy
  • Interdigital sensors
  • LPG
  • sieving
  • SnO2

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