TY - JOUR
T1 - Porous 2D CuO nanosheets for efficient triethylamine detection at low temperature
AU - Wang, Feng
AU - Zhong, Haoran
AU - Chen, Zhenlu
AU - Wang, Ding
AU - Lai, Zhuangchai
AU - Deng, Yonghui
AU - Wang, Xianying
N1 - Funding Information:
This study was financially supported by the National Natural Science Foundation of China (No. 62071300 ), Science and Technology Commission of Shanghai Municipality (Nos. YDZX20213100003002 , 19ZR1435200 , 20490761100 ), Innovation Program of Shanghai Municipal Education Commission (No. 2019-01-07-00-07-E00015), Program of Shanghai Academic/Technology Research Leader (No. 19XD1422900), Key Basic Research Program of Science and Technology Commission of Shanghai Municipality (No. 20JC1415300), Foshan Science and Technology Innovation Program (No. 2017IT 100121).
Publisher Copyright:
© 2022
PY - 2023/2
Y1 - 2023/2
N2 - The freshness of seafood can be judged by detecting the concentration of triethylamine (TEA). In this work, 2D CuO porous nanosheets (CuO PNs) were prepared by a graphene oxide template method and their particle sizes were regulated by changing the calcination temperature. Their structure, morphology and gas sensing performances were investigated by various characterization methods. The response (R
g/R
a) of the gas sensor based on CuO PNs calcined at 700
oC was as high as 440-100 ppm TEA at the operating temperature of 40 °C. The detection limit was as low as 0.25 ppm. In addition, the gas sensor has good selectivity and stability. The excellent TEA sensitivity is mainly resulted from the appropriate particle size and loose porous framework. This work not only paves the way to explore the novel low temperature TEA gas sensors, but also provides deep insight on improving the structure and properties of gas sensitive materials by controlling the calcination temperature.
AB - The freshness of seafood can be judged by detecting the concentration of triethylamine (TEA). In this work, 2D CuO porous nanosheets (CuO PNs) were prepared by a graphene oxide template method and their particle sizes were regulated by changing the calcination temperature. Their structure, morphology and gas sensing performances were investigated by various characterization methods. The response (R
g/R
a) of the gas sensor based on CuO PNs calcined at 700
oC was as high as 440-100 ppm TEA at the operating temperature of 40 °C. The detection limit was as low as 0.25 ppm. In addition, the gas sensor has good selectivity and stability. The excellent TEA sensitivity is mainly resulted from the appropriate particle size and loose porous framework. This work not only paves the way to explore the novel low temperature TEA gas sensors, but also provides deep insight on improving the structure and properties of gas sensitive materials by controlling the calcination temperature.
KW - CuO nanosheets
KW - Gas sensor
KW - Porous materials
KW - Triethylamine detection
KW - Low operating temperature
UR - http://www.scopus.com/inward/record.url?scp=85144768109&partnerID=8YFLogxK
U2 - 10.1016/j.cclet.2022.03.115
DO - 10.1016/j.cclet.2022.03.115
M3 - Journal article
SN - 1001-8417
VL - 34
JO - Chinese Chemical Letters
JF - Chinese Chemical Letters
IS - 2
M1 - 107392
ER -