Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 159, Issue 3, Pages J67-J71Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/2.050203jes
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Funding
- Royal Society
- EPSRC [EP/H005803/1]
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BaSnO3 has been prepared as porous screen-printed thick films gas sensors. The sensor material was characterized by scanning electron microscopy and X-ray diffraction. The sensors gas response was investigated by exposure to varying concentrations of CO2 gas in synthetic air and mixtures of CO and CO2 all at a variety of different operating temperatures. Finally the gas response was examined to potential interferant gases including humidity. It was found that at an operating temperature of 500 degrees C and to a 2000 ppm pulse of CO2 the sensors gave a gas response of 3.10, higher than current literature values for metal oxide materials. It was also found that increasing relative humidity enhanced the gas response in contrast to other approaches. (C) 2011 The Electrochemical Society. [DOI: 10.1149/2.050203jes] All rights reserved.
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