▎ 摘　　要

NOVELTY - Synthesis of carbon monoxide involves preparing a graphene-based catalyst, setting carbon dioxide-thermal reduction carbon monoxide-synthesizing experimental method and thermal catalytic efficiency evaluating method, providing flaky graphite as a precursor, preparing graphene oxide, various kinds of oxides and oxide composite graphene catalyst, and thermally reducing carbon dioxide by adding the catalyst to center of the reactor, passing carbon dioxide gas into the reactor, injecting deionized water into the reactor, sealing and determining concentration of carbon monoxide product. USE - Synthesis of carbon monoxide by thermally reducing carbon dioxide (claimed). ADVANTAGE - The method enables easy, environmentally-friendly and energy-saving synthesis of carbon monoxide by thermally reducing carbon dioxide using catalyst having excellent stability and high dispersity and efficiency higher than that of pure oxide and graphene, at low temperature without illumination, with low device requirement. DETAILED DESCRIPTION - Synthesis of carbon monoxide involves preparing graphene-based catalyst, setting carbon dioxide-thermal reduction carbon monoxide-synthesizing experimental method and thermal catalytic efficiency evaluating method, providing flaky graphite as a precursor, preparing graphene oxide by Hummers method, preparing various kinds of oxides, preparing an oxide composite graphene catalyst by chemical stripping method, and thermally reducing carbon dioxide by weighing a certain amount of catalyst, adding to center of the reactor, passing carbon dioxide gas having purity of 99.999% into the reactor at a flow rate of 0.2 L/minute for 35 minutes, removing air from the reactor, injecting deionized water into the reactor, sealing the reactor, and determining the concentration of carbon monoxide product.