▎ 摘　　要

NOVELTY - A palladium nanographene gas sensing material preparing method involves adding graphene in organic solvent, stirring for ultrasonic dispersion to obtain precursor solution A. The precursor solution A is added with weighed palladium chloride and stirred to obtain a precursor solution B. The precursor solution B is added with weighed sodium borohydride, stirred and allowed to stand to obtain a powder material. The powder material is washed and centrifuged to obtain centrifugal product, followed by drying the centrifugal product in vacuum oven to obtain the finished product. USE - Method for preparing palladium nanographene gas sensing material. ADVANTAGE - The method enables preparing palladium nanographene gas sensing material with high stability and high sensitivity, in simple and cost effective manner.