Title of article
Planar-type BiCuVOx solid electrolyte sensor for the detection of volatile organic compounds
Author/Authors
Kida، نويسنده , , Tetsuya and Minami، نويسنده , , Takuya and Kishi، نويسنده , , Shotaro and Yuasa، نويسنده , , Masayoshi and Shimanoe، نويسنده , , Kengo and Yamazoe، نويسنده , , Noboru، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2009
Pages
7
From page
147
To page
153
Abstract
Mixed potential-type gas sensors with a BiCuVOx (Bi2Cu0.1V0.9O5.35) oxygen conductor, fitted with composite electrodes made of perovskite-type oxide (La0.6Sr0.4Co0.8Fe0.2O3) and BiCuVOx, were tested for their organic gas sensing properties. A planar-type BiCuVOx-based device, in which thin sensing electrode and thick counter electrode are attached, exhibited good sensing characteristics to low ethanol concentrations (4–30 ppm) at 400 °C. The electromotive force (EMF) of the device had a linear relation to the logarithm of ethanol concentration. The 90% response and recovery times of the device were short, i.e., less than 1 min. Moreover, the planar structure successfully eliminated any oxygen interference. The ethanol sensing mechanism is based on the mixed potential generation from the simultaneous anodic oxidation of ethanol and the cathodic reduction of oxygen, at the BiCuVOx/electrode interface.
Keywords
Planar device , Perovskite-type oxide , VOCS , Mixed potential , BiCuVOx
Journal title
Sensors and Actuators B: Chemical
Serial Year
2009
Journal title
Sensors and Actuators B: Chemical
Record number
1437194
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