Lanthanum oxide @ antimony-doped tin oxide with high gas sensitivity and selectivity towards ethanol vapor

Mengyun Wang, Lianfeng Zhu, Changyue Zhang, Guosheng Gai, Xuewen Ji, Baohua Li, Youwei Yao

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

An ethanol-sensing powder (La2O3@Sb-SnO2), mixture composed of 1.00 wt.% La2O3 and 99.00 wt.% Sb-doped SnO2 (Sb-SnO2), was found to possess enhanced sensitivity towards ethanol: typically, for La2O3@Sb-SnO2, the ratio of the response towards 1000 ppm ethanol vapor to that of 1000 ppm CO is 26.1 (60.0/2.3) under operating temperature of 250 °C; while for Sb-SnO2, the ratio is only 4.5 (9.0/2.0). A suggestive mechanism on enhanced ethanol sensing is discussed.

Original languageEnglish
Pages (from-to)478-484
Number of pages7
JournalSensors and Actuators, B: Chemical
Volume224
DOIs
Publication statusPublished - 2016 Mar 1
Externally publishedYes

Keywords

  • Basic catalysis
  • Ethanol
  • Gas sensor
  • Selectivity
  • SnO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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