Abstract
Triethylamine is an effective indicator for evaluating seafood freshness. Therefore, a device capable of real-time monitoring of triethylamine is required. In this study, WO3 nanomaterials prepared using sodium tungstate as the tungsten source were used to assemble semiconductor sensors to detect low concentrations of triethylamine at low temperatures. To investigate the effects of different structural guides on the sensor performance, citric and oxalic acids were used as structural guiding agents to obtain WO3 nanoplates and nanoparticles, respectively. At an optimal operating temperature of 255 °C, the WO3 nanoplate sensor exhibited a response of 56.57 to 10 ppm triethylamine, with a sensitivity of 50 in the tested concentration range of 2.5–25 ppm triethylamine, and response/recovery times of 9 s/69 s. WO3 nanoplates performed better than that of WO3 nanoparticles. In addition, the effect of different structural guiding agents on the sensor properties was explored, and the response mechanism of the semiconductor sensor was investigated. WO3 nanoplate shows fast response time, high selectivity and low detection limit, that is an excellent TEA sensor, which makes it more promising used in food detection for practical applications.
Funder
the key research and development project in 2020 of Jiangxi Province
Ningdong Energy and Chemical Industry Base focuses on supporting science and technology projects in 2022
Shanghai Institute of Technology, Science and Technology talent development fund for young and middle-aged teachers
Publisher
The Electrochemical Society
Subject
Materials Chemistry,Electrochemistry,Surfaces, Coatings and Films,Condensed Matter Physics,Renewable Energy, Sustainability and the Environment,Electronic, Optical and Magnetic Materials
Cited by
1 articles.
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