▎ 摘　　要

NOVELTY - The method involves preparing graphene or polyaniline hybrid material by dissolving graphene oxide or manganese dioxide hybrid material in water, stirring the dissolved material at room temperature, filtering and washing the stirred material by water, and obtaining solid powder by drying the stirred material at 60 degrees Celsius. Dispersion liquid is formed by dispersing the graphene or polyaniline hybridized material in organic solvent, and a graphene or polyaniline hybridized material gas sensor is obtained by drying the dispersion liquid at 60 to 150 degrees Celsius. USE - Method for manufacturing a graphene or polyaniline hybrid material based gas sensor. ADVANTAGE - The method enables providing better sensitivity to gas sensors and producing multiple gas sensors. DESCRIPTION OF DRAWING(S) - The drawing shows a photograph of a graphene or polyaniline hybrid material.