Scientific Paper
An investigation of the influence of nanofibers morphology on the performance of QCM-based ethanol vapor sensor utilizing polyvinylpyrrolidone nanofibers active layer
Summary
Electrospun polyvinylpyrrolidone nanofibres in three shapes (spherical beads, spindle beads and smooth fibres) were compared as QCM coatings for ethanol vapour. The bead-on-string form with spherical beads has the largest surface area and gives the best result, 2.6 Hz per ppm and a detection limit near 0.02 ppm, with adsorption following a Freundlich isotherm driven by hydrogen bonding.
Summary written by the openQCM team. The original abstract is on the publisher’s page.
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