Fast ethylamine gas sensing based on intermolecular charge-transfer complexation

We have investigated the fast ethylamine gas sensing of 2-chloro-3,5-dinitrobenzotrifluoride (CDBF) loaded poly(acrylonitrile)nanofiber based on an intermolecular charge-transfer complexation. Reversible response and recovery were achieved using alternating gas exposure. This system shows a fast ethylamine gas sensing within 0.4 s.