Title of article
Carbon dioxide sensing properties of bismuth cobaltite
Author/Authors
Casas-Cabanas، نويسنده , , M. and Chadwick، نويسنده , , A.V. and Palacيn، نويسنده , , M.R. and Michel، نويسنده , , C.R.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2011
Pages
8
From page
380
To page
387
Abstract
Bismuth cobaltite with sillenite-type structure was prepared from Co(OH)2 and Bi(NO3)3·6H2O through solid state reaction at 600 °C. Neutron powder diffraction (NPD) data and X-ray absorption spectroscopy revealed the existence of mixed oxidation states for cobalt in this compound, the chemical formula being Bi12(Bi0.55Co0.45)O19.6. The gas sensing properties of Bi12(Bi0.55Co0.45)O19.6 were characterized by alternating current, at 200, 300 and 400 °C. The optimal response was observed at 400 °C, using a frequency of 100 kHz.
Keywords
Bismuth cobaltite , neutron powder diffraction , CO2 gas sensor
Journal title
Sensors and Actuators B: Chemical
Serial Year
2011
Journal title
Sensors and Actuators B: Chemical
Record number
1439670
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