Journal
MATERIALS RESEARCH BULLETIN
Volume 153, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2022.111881
Keywords
In2O3; Hollow porous nanospheres; Ag nanoparticles; Triethylamine; Gas sensing
Categories
Funding
- National Natural Science Foundation of China [51562038]
- Yunnan Yunling Scholars Project
- Key Project of Natural Science Foundation of Yunnan [2018FY001 (-011)]
- Young and middle-aged academic and technical leaders reserve talent project in Yunnan Province [202005AC160015]
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In this study, In2O3 hollow porous nanospheres loaded with Ag nanoparticles were successfully prepared and their sensing properties to TEA were investigated. The 5wt%Ag-In2O3 gas sensor exhibited high sensitivity, low concentration detection, excellent selectivity, and stability to TEA at 350 degrees C.
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 degrees 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.
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