▎ 摘　　要

NOVELTY - Synthetic carbon nanotubes graphene oxide catalyst carrier-carbon microspheres comprise carbon microspheres-graphene oxide as the carrier, and nickel-silver-chromium alloy nanoparticles as the catalytically active component, where the mass ratio of graphene oxide, carbon microspheres, catalytically active components is 80-85:15-20: 1-10, and the mass ratio of nickel, silver, and chromium in the active component is 1:0.1-0.3:0.5-0.7. USE - The catalyst is useful as a catalyst for preparing carbon nano-tubes and as toluene to synthesize carbon nano-tubes (claimed). ADVANTAGE - The method: solves the defects of single-component materials; is simple; and has a wide range of advantages. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the catalyst comprising (1) dispersing graphene oxide uniformly in deionized water, adjusting to alkaline to obtain an alkaline solution, weighing the carbon microsphere precursor and dissolving in the alkaline solution, stirring at room temperature for 0.5-1.5 hours, pouring the mixed solution into the hydrothermal reaction kettle for hydrothermal reaction for 1.5-2 hours, taking out the carbon microsphere-graphene oxide carrier out from the reactor, washing with water and freeze-dried to obtain the carbon microsphere-graphene oxide carrier, where the mass ratio of graphene oxide/deionized water is 1:10-30, (2) adding the silver precursor and the chromium precursor to deionized water, stirring until the solution is clear and transparent to obtain three precursor solutions, and mixing the three precursor solutions uniformly to obtain the active component precursor complex solution, (3) immersing the carbon microsphere-graphene oxide carrier in the active component precursor complex solution, carrying out adsorption for 1-3 hours, freeze-drying the mixed sample to obtain a carbon microsphere-graphene oxide carrier that adsorbs the active component precursor, (4) placing the carbon microsphere-graphene oxide carrier that adsorbs the active component precursor in a vertical fixed bed reactor, uniformly passing the sodium borohydride vapor through the carrier of the vertical reactor and reduces the active components in the carrier to obtain nickel-silver-chromium alloy nanoparticles, and preparing a carbon microsphere-graphene oxide supported nickel-silver-chromium alloy nanoparticle catalyst, and (5) freeze-drying the carbon microsphere-graphene oxide supported nickel-silver-chromium alloy nano-particle catalyst and then placing in an atmosphere furnace to pass carbon monoxide atmosphere for low-temperature calcination to obtain activated catalyst.