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- Title
High Response of Ethanol Gas Sensor Based on NiO-Doped Apple Pectin by the Solution Process.
- Authors
Jian, Jia-Cheng; Chang, Yu-Chi; Chang, Sheng-Po; Chang, Shoou-Jinn
- Abstract
Novel gas sensor devices, based on biomaterial apple pectin film (APN) doped with NiO, were fabricated for the first time using a solution processing technique. The device was then annealed in a microwave chamber. The structural, elemental, and surface morphology of the device was investigated, using TEM, XPS, and AFM, respectively. The as-fabricated film sensor possessed a superior sensing performance regarding ethanol gas, compared to the pure apple pectin film sensor. The response of the device was recorded at a maximum efficiency of 161. For a 10 ppm concentration of ethanol gas at an operational temperature of 250 °C, the response time was 1.379 s. Nevertheless, the sensing mechanism for the sensor device is also described thoroughly.
- Subjects
GAS detectors; PECTINS; ETHANOL; SURFACE morphology
- Publication
Coatings (2079-6412), 2021, Vol 11, Issue 9, p1073
- ISSN
2079-6412
- Publication type
Article
- DOI
10.3390/coatings11091073