A bismuth oxide nanoplate-based carbon dioxide gas sensor

A carbon dioxide gas sensor based on wet-chemically synthesized β-Bi 2O 3 nanoplates (width ∼100–400 nm; length ∼4–6 μm) was investigated using repeatability and reproducibility tests. The saturation region for different gas concentrations, and the response and recovery times were also recorded. The...

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Bibliographic Details
Published in:Scripta materialia 2011-12, Vol.65 (12), p.1081-1084
Main Authors: Bhande, Sambhaji S., Mane, Rajaram S., Ghule, Anil V., Han, Sung-Hwan
Format: Article
Language:English
Subjects:
Carbon dioxide
CO 2 sensors
Gas sensors
Morphological evolution
Nanocomposites
Nanomaterials
Nanostructure
Operating temperature
Recovery time
Reproducibility
Structural elucidation
β-Bi 2O 3 nanoplates
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Summary:A carbon dioxide gas sensor based on wet-chemically synthesized β-Bi 2O 3 nanoplates (width ∼100–400 nm; length ∼4–6 μm) was investigated using repeatability and reproducibility tests. The saturation region for different gas concentrations, and the response and recovery times were also recorded. The β-Bi 2O 3 nanoplate-based sensor has demonstrated lower operating temperature with a high gas response of 100%, which remained unchanged even up to 11,000 ppm CO 2. The fast response and recovery times suggests these nanoplates can serve as excellent gas-sensing nanomaterial.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2011.09.022