skip to main content

SciTech ConnectSciTech Connect

Title: Tuned sensitivity towards H{sub 2}S and NH{sub 3} with Cu doped barium strontium titanate materials

The different amount of Cu-doped Barium Strontium Titanate (BST) thick film materials have been tested for their gas-sensing performances towards NH{sub 3} and H{sub 2}S under dry and 50% relative humidity (RH) background conditions. The optimum NH{sub 3} sensitivity was attained with 0.1mol% Cu-doped BST whereas the selective detection of H{sub 2}S was highlighted using 5mol% Cu-doped BST material. No cross-sensitivity effects to CO, NO{sub 2}, CH{sub 4} and SO{sub 2} were observed for all tested materials operated at their optimum temperature (200°C) under humid conditions (50% RH). The presence of humidity clearly enhances the gas sensitivity to NH{sub 3} and H{sub 2}S detection.
Authors:
; ;  [1] ;  [2] ; ;  [3]
  1. National Institute of Materials Physics, Atomistilor 105bis, P.O. Box MG-7, 077125, Bucharest-Magurele (Romania)
  2. AG Weimar, Institute of Physical and Theoretical Chemistry, University of Tübingen, Auf der Morgenstelle 15, D-72076 Tübingen (Germany)
  3. National R and D Institute for Non-ferrous and Rare Metals, 102 Biruintei Blvd, Ilfov (Romania)
Publication Date:
OSTI Identifier:
22390538
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1627; Journal Issue: 1; Conference: 14. Electroceramics Conference, Bucharest (Romania), 16-20 Jun 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BARIUM COMPOUNDS; CARBON MONOXIDE; COPPER COMPOUNDS; DOPED MATERIALS; HUMIDITY; METHANE; NITROGEN DIOXIDE; PERFORMANCE; SENSITIVITY; STRONTIUM TITANATES; SULFUR DIOXIDE; TEMPERATURE DEPENDENCE