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In2O3 Hollow porous nanospheres loaded with Ag nanoparticles to achieve wide concentration range triethylamine detection

2022; Elsevier BV; Volume: 153; Linguagem: Inglês

10.1016/j.materresbull.2022.111881

1873-4227

Zhenlin Song, Shiqiang Zhou, Tianping Lv, Jiyang Zeng, Xinya Kuang, Bin Xiao, Qingjie Lu, Baoye Zi, Yumin Zhang, Zhongqi Zhu, Jin Zhang, Qingju Liu,

Analytical Chemistry and Sensors

Triethylamine (TEA) is a volatile organic compound (VOC) that is detrimental to production safety, environment, and human health. It is necessary to prepare a gas sensor with high sensitivity and selectivity for real-time monitoring of TEA. Here, In2O3 hollow porous nanospheres (HPNSs) loaded with Ag nanoparticles were prepared and the sensing properties to TEA were researched. The 5wt%Ag-In2O3 gas sensor exhibited high sensitivity (20,059 to 100 ppm), low concentration detection (6.11 to 0.1 ppm), extremely good selectivity, and stability to TEA at 350 °C. Our work highlights the potential of using metal-organic frameworks as a precursor to prepare In2O3 hollow porous nanospheres combined with the catalysis of Ag for TEA gas detection.