Abstract

Gas sensors utilizing conducting polymers like polyaniline (PANI) and Polyacrylonitrile (PAN) as active layers is reviewed. This overview delves into the sensing mechanisms, sensor configurations, and the various factors impacting sensor performance. Specifically, a PANI/PAN nanofiber, synthesized through electrospinning and in-situ chemical polymerization, is examined for its response to different concentrations of volatile organic compounds (VOCs) such as methanol and acetone at ambient temperature. Notably, the sensitivity of the PANI/PAN sensor is found to correlate positively with increasing concentrations of methanol and acetone.