This study investigates a hydrogen sensor based on platinum and graphene-enriched tungsten oxide, synthesized via impregnation and deposited as a chemoresistor. The sensor was evaluated using both DC and AC impedance spectroscopy at 200 ℃. DC measurements showed a linear, reversible response to hydrogen (2500–25000 ppm), demonstrating sensitivity. The combined DC and AC approach yields multiple parameters correlated with a specific analyte, suggesting a pathway for improved discrimination between different target gases.
Hydrogen Sensing with Graphene-Wo3Pt: AC/DC Measurements and Admittance Spectroscopy
Di Benedetto L.;Liguori R.;Rinaldi N.;Rubino A.
2025
Abstract
This study investigates a hydrogen sensor based on platinum and graphene-enriched tungsten oxide, synthesized via impregnation and deposited as a chemoresistor. The sensor was evaluated using both DC and AC impedance spectroscopy at 200 ℃. DC measurements showed a linear, reversible response to hydrogen (2500–25000 ppm), demonstrating sensitivity. The combined DC and AC approach yields multiple parameters correlated with a specific analyte, suggesting a pathway for improved discrimination between different target gases.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
