Enhancement of NH3 gas sensing with Ag-Pt co-catalyst on SnO2 nanofilm towards medical diagnosis
Thin Solid Films（2023）
Abstract
•Bimetallic Ag-Pt catalyst was used to enhance NH3 gas sensing performance.•The sensor could monitor NH3 gas at sub-ppm level toward breath analysis.•High sensor response of 4.31 at 1 ppm NH3 with fast response time of 12 s.•The sensor showed negligibly affected by humidity and interfering gases.
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Key words
Ammonia,Gas sensor,Tin dioxide,Nanofilm,Silver-platinum alloy,Breath diagnosis
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