Journal
CERAMICS INTERNATIONAL
Volume 46, Issue 3, Pages 3304-3310Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2019.10.036
Keywords
Acetic acid; ZnO foam; Sol-gel autocombustion; Gas sensor; Sub-ppm level
Categories
Funding
- Young Teachers' Research Funding from College of Science, China Pharmaceutical University [2018CSYT005]
- Fundamental Research Funds for the Central Universities [2632017PY05]
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Lately, only few successful gas sensors, especially those based on the sensing material of zinc oxide (ZnO), have been specifically designed for the detection of acetic acid. Herein, a new gas sensor aimed at acetic acid was designed employing a novel ZnO foam as the sensing material, which was prepared by a simple sol-gel auto-combustion method. The foam presents a novel architecture decorated with numerous holes, and the designed gas sensor exhibits superior sensing performances toward acetic acid, i.e., a high response, sub-ppm detection, excellent selectivity, fine repeatability. These superior sensing performances could be attributed to the massive decorated holes, which significantly facilitates the gas diffusion and transportation.
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