Twochemiresistors based on two interpenetrating networks of a polymer and a polyelectrolyte have been characterized by impedance spectroscopy in 10 ethanol/cyclohexane blends to evaluate the feasibility of a sensor for the detection of ethanol into gasoline. The chemiresistors show high sensitivity, negligible hysteresis and non-linear temperature dependence. They have also been powered at fixed frequencies showing, at 20 kHz, detection range from 0 to 100%, response time of few seconds, and promising stability. The interference of water resulted negligible up to 2%.
A. Zanelli, S. Bassini, M. Giorgetti, Y. Li, M. J. Yang (2010). Chemiresistors for Ethanol Detection in Hydrocarbons. SENSORS AND ACTUATORS. B, CHEMICAL, 148, 147-152 [10.1016/j.snb.2010.04.037].
Chemiresistors for Ethanol Detection in Hydrocarbons
S. Bassini;GIORGETTI, MARCO;
2010
Abstract
Twochemiresistors based on two interpenetrating networks of a polymer and a polyelectrolyte have been characterized by impedance spectroscopy in 10 ethanol/cyclohexane blends to evaluate the feasibility of a sensor for the detection of ethanol into gasoline. The chemiresistors show high sensitivity, negligible hysteresis and non-linear temperature dependence. They have also been powered at fixed frequencies showing, at 20 kHz, detection range from 0 to 100%, response time of few seconds, and promising stability. The interference of water resulted negligible up to 2%.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
