TY - GEN
T1 - Interaction of water vapor with SnO2 sensor materials
T2 - Symposia on Chemical Sensors 10 - Chemical and Biological Sensors and Analytical Systems and Microfabricated and Nanofabricated Systems for MEMS/NEMS 10 - 222nd ECS Meeting/PRiME 2012
AU - Pavelko, R. G.
AU - Grossmann, K.
AU - Barsan, N.
AU - Shimanoe, K.
PY - 2013
Y1 - 2013
N2 - Operando DRIFT spectroscopy together with resistance measurements was used to study sensitivity (here response change upon changing analyte concentration) of undoped SnO2 materials to water vapors. The materials synthesized using different protocols were found to manifest very different sensitivity to water, as well as to H2 and CO in dry and humid air. While for one of the materials (SnO2 Ac) low sensitivity to water combines with similarity between evolution of two bands in OH region and resistance, another material (SnO2 Cl), with high sensitivity to water vapors, manifests similarity with the resistance only for the broad band between 3590 and 3040 cm-1. Together with high sensitivity to water vapors the latter material shows higher sensitivity to CO in dry and humid air, while SnO 2 Ac showed higher sensitivity to H2.
AB - Operando DRIFT spectroscopy together with resistance measurements was used to study sensitivity (here response change upon changing analyte concentration) of undoped SnO2 materials to water vapors. The materials synthesized using different protocols were found to manifest very different sensitivity to water, as well as to H2 and CO in dry and humid air. While for one of the materials (SnO2 Ac) low sensitivity to water combines with similarity between evolution of two bands in OH region and resistance, another material (SnO2 Cl), with high sensitivity to water vapors, manifests similarity with the resistance only for the broad band between 3590 and 3040 cm-1. Together with high sensitivity to water vapors the latter material shows higher sensitivity to CO in dry and humid air, while SnO 2 Ac showed higher sensitivity to H2.
UR - http://www.scopus.com/inward/record.url?scp=84885793205&partnerID=8YFLogxK
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U2 - 10.1149/05012.0221ecst
DO - 10.1149/05012.0221ecst
M3 - Conference contribution
AN - SCOPUS:84885793205
SN - 9781607683605
T3 - ECS Transactions
SP - 221
EP - 229
BT - Chemical Sensors 10 -and- MEMS/NEMS 10
PB - Electrochemical Society Inc.
Y2 - 7 October 2012 through 12 October 2012
ER -