Hydrogen sensor based on Sm-doped SnO{sub 2} nanostructures

Journal Article · Mon May 23 04:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4947771· OSTI ID:22606346

Singh, Gurpreet; Hastir, Anita

In this paper the effect of samarium doping on the structural and hydrogen gas sensing properties of SnO{sub 2} nanoparticles has been reported. X-ray Diffraction (XRD) results revealed tetragonal rutile structure of both undoped and Sm-doped SnO{sub 2} nanoparticles. It has been observed that doping with samarium led to reduction in crystallite size of SnO{sub 2} nanoparticles which was confirmed from XRD analysis. Shifting and broadening of Raman peaks in case of doped nanoparticles has been explained by well-known phonon confinement model. The optimum operable temperature of both the sensors was found to 400 °C and the sensor response towards hydrogen gas has been improved after doping with samarium which was attributed to increase in sensing sites for the gas adsorption.

• OSTI ID: 22606346
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1731; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ADSORPTION
DOPED MATERIALS
HYDROGEN
NANOPARTICLES
NANOSTRUCTURES
REDUCTION
SAMARIUM ADDITIONS
SENSORS
TIN OXIDES
X-RAY DIFFRACTION