In this work, we report on the synthesis and preliminary performance evaluation of electrosprayed multi-walled carbon nanotubes (MWCNTs)/ Polyvinylidene Fluoride (PVDF) nanocomposite materials for gas detection of volatile organic compounds. MWCNTs are characterized by a hollow structure, large surface area and several unique properties that make them potentially excellent for gas sensing. However, in order to improve their sensitivity, selectivity, stability and reproducibility effects, we doped our carbon nanotubes with PVDF polymer in a minimal concentration such that it utilizes its strong binding effect with interconnected nanotubes. Further, the substrate and the polymer do not affect the dominance of MWCNTs on the surface as observed from SEM characterization. The electrospray deposition technique, combined with sonication, was used to ensure the MWCNT was dispersed evenly in the polymer matrix, as MWCNTs tend to aggregate due to their strong Van der Waals forces. The quality of dispersion has been investigated to be closely associated to the sensing properties of nanocomposite materials, therefore, enhancement in MWCNTs dispersion leads to a better performing sensor.

Electrospray Deposition of Multi-walled Carbon Nanotubes/Polyvinylidene Fluoride Nanocomposite for Gas Sensing Applications

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.