Scientific Paper
Rapid response and high-enhancement sensitivity formic acid gas sensor based on electrospun polyimide/polyvinylpyrrolidone composite nanofibers
Summary
Electrospun polyimide/polyvinylpyrrolidone composite nanofibres on a QCM detect formic acid vapour at room temperature, with 0.389 Hz per ppm, a linear response from 10 to 300 ppm and a 7 s response time. Hydrogen bonding between the PVP carbonyl groups and formic acid explains the signal; the sensor stayed repeatable over cycles and stable for two weeks.
Summary written by the openQCM team. The original abstract is on the publisher’s page.
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