Abstract:
This paper is devoted to an investigation on the methane sensing properties of graphene (G),
decorated with silver nanoparticles (AgNPs), at room temperature. Graphene has
noteworthy logical consideration in light of its extraordinary compound, mechanical and
electrical properties. This exceptionally solid two dimensional (2D) material has
forthcoming application in gas sensors. Methane gas sensor are significant for human
wellbeing and security. Methane is profoundly lethal gas and intense to identify in view of its
drab, and can get into human blood through lungs or skin. It moves into the tissues where it
ties with oxygen and lessening the measure of oxygen there. This prompts cerebral pain,
wooziness, disarray and even demise at high focus and long-lasting introduction. Thus, we
report the utilization of Graphene, surrendered Graphene (as a rule called diminished
Graphene Oxide), and silver nanoparticles/Graphene Nano composite film for methane
detecting at surrounding conditions. The AgNP/rGO film on substrate is then used, as a
resistivity-based sensor, to examine its response to the presence of methane gas. Our results
show sensing of methane concentrations up to 150 sccm, the maximal response increases
linearly and rapidly, even at room temperature. Moreover, we demonstrate that AgNPs/rGO
is of low limit of detection, highly stable, selective, and reversible for methane sensing. Our
prototype thus promise a low-cost and simple-to-fabricate methane sensing device
Keywords: Graphene Oxide, Reduced Graphene Oxide, Silver nanoparticles, Methane
