期刊
INORGANIC CHEMISTRY COMMUNICATIONS
卷 150, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.inoche.2023.110445
关键词
HCHO; Gas sensor; VOC; NiO; Sintering
The present research synthesized pure Nickel Oxide (NiO) nanostructures with exceptional surface modification through temperature treatment. The prepared NiO was carefully tested for its morphology, structure, elements, and gas sensing abilities. The study revealed the sensing performances of various volatile organic compounds (VOCs), with a specific focus on formaldehyde (HCHO). Gas sensor testing of the prepared samples was carried out at room temperature (RT) and at different concentrations of the target gas. Among the different sensors tested, the NiO nanoparticles at 500 degrees C sintering temperature-based HCHO sensor showed the most significant response.
The present research synthesizes pure Nickel Oxide (NiO) nanostructures via a coprecipitation route with exceptional surface modification by temperature treatment. The morphological, structural, elemental and gas sensing tests of the prepared NiO were done carefully. The study unveils the sensing performances of various volatile organic compounds (VOCs), specifically for HCHO. Furthermore, gas sensor testing of prepared samples was carried out at room temperature (RT) and at different concentrations of the target gas. For 100 ppm of target gases, NiO (300 degrees C), NiO (500 degrees C), and NiO (700 degrees C) gas sensors exhibited 83.43, 5616, and 196 gas responses, respectively, at RT. Hence, NiO nanoparticles at 500 degrees C sintering temperature-based HCHO sensor showed a significant response than other NiO sensors.
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