Highly selective CO2 gas sensor using stabilized NiO-In2O3 nanospheres coated reduced graphene oxide sensing electrodes at room temperature

In this present work we report on room temperature operative carbon dioxide gas sensing electrodes developed by simple sonication assisted hydrothermal method. The hydrothermal treatment enhances decoration of reduced graphene oxide (rGO) layers with various ratios (9:1, 8:2, 7:3, 6:4) of nickel oxide and indium oxide nanoparticles respectively by using strong reductant hydrazine hydrate. The physiochemical, morphological and gas sensing...