Propane gas sensing properties of SnO2 and SnO2:Ag thin films prepared by sol-gel technique

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Both SnO2 and SnO2:Ag thin films were fabricated by the sol-gel process and dip-coating technique. SnCl4·5H 2O was used as a precursor of tin to prepare a 0.2M solution with 2-methoxyethanol and monoethanolamine as solvents. From AgNO3 a 0.012M solution in ethanol was prepared, from where the Ag was used as catalyst, which was incorporated superficially to SnO2 film grown on soda-lime substrate. Two series of samples (A and B) about 150 and 300 nm in thickness were prepared and studied. Several layers of Ag as catalyst on the surface of SnO2 films were applied. The films were characterized in structure (RXD), morphology (SEM and AFM) and EDX, electrical and optical properties (UV-vis). The sensing properties of films to the propane at, 0, 1, 5, 50, 100, 200, 300, 400 and 500 ppm gas concentrations were tested in sensors operating at 23, 100, 200 and 300°C. Results for a selection of sensors are presented in this paper.

Original languageEnglish
Title of host publicationStructural and Chemical Characterization of Metals, Alloys and Compounds
Pages151-158
Number of pages8
StatePublished - 2010
Event19th International Materials Research Congress 2010 - Cancun, Mexico
Duration: 15 Aug 201019 Aug 2010

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1275
ISSN (Print)0272-9172

Conference

Conference19th International Materials Research Congress 2010
Country/TerritoryMexico
CityCancun
Period15/08/1019/08/10

Keywords

  • Ag
  • Oxide
  • Sensors
  • Sn
  • Sol-gel

Fingerprint

Dive into the research topics of 'Propane gas sensing properties of SnO2 and SnO2:Ag thin films prepared by sol-gel technique'. Together they form a unique fingerprint.

Cite this