A thermoelectric gas sensor based on an embedded tin oxide catalyst for detecting hydrogen and NOx gases

Seung Il Yoon, Chung Il Lee, Yong Jun Kim

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

This paper reports a novel gas sensing method by using a thermoelectric device, thermopile in this case, with an embedded tin oxide catalyst. By using a thin catalyst film and gas adsorption process instead of absorption, the response time and recovery time were remarkably improved. And the fabricated sensor was characterized through detecting a hydrogen gas. Finally, NO x gas was successfully detected by using the proposed sensor. The respond and recovery time were shorter than 1 minute. The output signal change according to the concentrations of the NOx gas was 1.5 x 10 1 μ V/ppm.

Original languageEnglish
Article number4805371
Pages (from-to)272-275
Number of pages4
JournalProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
DOIs
Publication statusPublished - 2009 Jun 1
Event22nd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2009 - Sorrento, Italy
Duration: 2009 Jan 252009 Jan 29

Fingerprint

Tin oxides
Chemical sensors
tin oxides
Hydrogen
Gases
catalysts
Catalysts
sensors
hydrogen
gases
Thermopiles
Recovery
Gas adsorption
recovery
Sensors
thermopiles
stannic oxide
adsorption
output

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

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abstract = "This paper reports a novel gas sensing method by using a thermoelectric device, thermopile in this case, with an embedded tin oxide catalyst. By using a thin catalyst film and gas adsorption process instead of absorption, the response time and recovery time were remarkably improved. And the fabricated sensor was characterized through detecting a hydrogen gas. Finally, NO x gas was successfully detected by using the proposed sensor. The respond and recovery time were shorter than 1 minute. The output signal change according to the concentrations of the NOx gas was 1.5 x 10 1 μ V/ppm.",
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AB - This paper reports a novel gas sensing method by using a thermoelectric device, thermopile in this case, with an embedded tin oxide catalyst. By using a thin catalyst film and gas adsorption process instead of absorption, the response time and recovery time were remarkably improved. And the fabricated sensor was characterized through detecting a hydrogen gas. Finally, NO x gas was successfully detected by using the proposed sensor. The respond and recovery time were shorter than 1 minute. The output signal change according to the concentrations of the NOx gas was 1.5 x 10 1 μ V/ppm.

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