Impedance Spectroscopy-Based Reduced Graphene Oxide-Incorporated ZnO Composite Sensor for H₂S Investigations.

ABSTRACT: Electrochemical impedance spectroscopy (EIS) has been applied to measure the H₂S gas response of the sensor fabricated on reduced graphene oxide (rGO)-incorporated nano-zinc oxide (n-ZnO) composites. These nanocomposites were prepared by a facile one-step solution route at room temperature. The structural, surface morphological, and elemental analyses of the composite material have been investigated. EIS was carried out to study the H₂S gas-sensing properties of fabricated sensors. The developed sensor showed an optimal H₂S gas response to various concentrations ranging from 2 to 100 ppm at 90 °C. The H₂S gas-sensing performances of pure n-ZnO and various concentrations of rGO-incorporated n-ZnO were evaluated. The H₂S gas-sensing resu

SUBMITTER: Balasubramani V 

PROVIDER: S-EPMC6648247 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature