Solid Electrolyte Gas Sensor Based on a Proton-Conducting Graphene Oxide Membrane.

ABSTRACT: Graphene oxide (GO) is an ultrathin carbon nanosheet with various oxygen-containing functional groups. The utilization of GO has attracted tremendous attention in a number of areas, such as electronics, optics, optoelectronics, catalysis, and bioengineering. Here, we report the development of GO-based solid electrolyte gas sensors that can continuously detect combustible gases at low concentrations. GO membranes were fabricated by filtration using a colloidal solution containing GO nanosheets synthesized by a modified Hummers' method. The GO membrane exposed to humid air showed good proton-conducting properties at room temperature, as confirmed by hydrogen concentration cell measurements and complex impedance analyses. Gas sensor devices were fabricated using the GO membrane fitted with a

SUBMITTER: Miyamoto A 

PROVIDER: S-EPMC6641019 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature