A bismuth oxide nanoplate-based carbon dioxide gas sensor

作者：Bhande Sambhaji S; Mane Rajaram S^*; Ghule Anil V; Han Sung Hwan

来源：Scripta Materialia, 2011, 65(12): 1081-1084.

DOI：10.1016/j.scriptamat.2011.09.022

• beta-Bi2O3 nanoplates
• Structural elucidation
• Morphological evolution
• CO2 sensors

A carbon dioxide gas sensor based on wet-chemically synthesized beta-Bi2O3 nanoplates (width similar to 100-400 nm; length similar to 4-6 mu m) was investigated using repeatability and reproducibility tests. The saturation region for different gas concentrations, and the response and recovery times were also recorded. The beta-Bi2O3 nanoplate-based sensor has demonstrated lower operating temperature with a high gas response of 100%, which remained unchanged even up to 11,000 ppm CO2. The fast response and recovery times suggests these nanoplates can serve as excellent gas-sensing nanomaterial.

• 出版日期2011-12