▎ 摘　　要

NOVELTY - Adsorption of copper/zirconia spherical graphene material comprises spherical graphite, zirconium oxide and copper nano particle, where the spherical graphite is spherical porous structure, the zirconium oxide and the copper nano-particle is adsorbed on spherical graphene with porous structure and the surface. USE - The material is useful in N-methyl diethanolamine dehydrogenation catalysis (claimed). ADVANTAGE - The material: has good catalyst dispersibility and stability; has high catalytic activity; improves the product yield; and improves the service life. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing adsorption of copper/zirconia spherical graphene material comprising (1) curing the 1.5-2.5 g/l lamination of graphene oxide solution treatment by liquid nitrogen spray, vacuum freezing and drying, crushing and grinding to obtain spherical graphene oxide, (2) mixing the zirconium acetate solution and a copper acetate aqeous solution, stirring, adding step (1) the preparation of spherical graphene oxide, mixing and adsorbing, adjusting the pH value to 9-14 at 20-90 degrees C, precipitating zirconium ions and copper ions to form metal hydroxide, pouring the mixed solution in the stainless steel reaction kettle with polytetrafluoroethylene liner, converting hydro-thermal reacting metal hydroxide to metal oxide, reducing graphene oxide to graphene, obtaining graphene-adsorbed zirconium copper oxide, (3) preparing graphene adsorbed copper zirconium oxide by filtering, washing and drying, grinding in a tubular furnace, reducing under the atmosphere of hydrogen, and obtaining adsorption of copper/zirconia spherical graphene material; and (2) use of adsorption of copper/zirconia spherical graphene material comprising absorbing copper/zirconia spherical graphene material as catalyst at a hydrogen flow rate of 40 ml/minute to the N-methy diethano lamine as raw material, reacting at 250-270 degrees C, reducing for 10-12 hours, and maintaining under a gaseous hydrogen atmosphere to obtain 4-methyl-2-morpholinone.