▎ 摘　　要

NOVELTY - A functional graphene, e.g. cyano functionalized graphene (I) or carboxylic sodium functionalized graphene (I), is new. USE - A functionalized graphene used in preparing a molybdenum-palladium methanol catalyst (claimed). ADVANTAGE - The functionalized graphene has simple and fast operation. The catalyst has good catalytic action to oxidization of methanol since the functionalized graphene prepares platinum and palladium methanol catalyst by electrochemical deposition. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for preparing (I); preparing (II); and preparing a molybdenum-palladium methanol catalyst, comprising mixing graphene with 3 mol/L muriatic acid at a ratio of 200 mg to 50ml, heating to 120 degrees C for 5 hours and refluxing the mixture, cooling the mixture and filtering, rinsing by secondary water until the filtrate is neutral, and drying for 10 hours to obtaining the functional graphene; mixing functional graphene with dried methylbenzene at a ratio of 100mg to 100 mL, dispersing for 30 minutes, strongly agitating, adding 20 mL methylbenzene containing 6.4 g azobisisobutyronitrile, refluxing in argon at 75 degrees C for 4 hours, cooling and filtering, rinsing for 2-4 times by 20 mL methylbenzene solution, and drying for 12 hours; mixing the cyano functionalized graphene with 10 mol/L of sodium hydroxide and methanol at a ratio of 50 mg to 30 mL, obtaining the dispersing liquid, refluxing the dispersing liquid at 60 degrees C for 48 hours, cooling and filtering, rinsing twice until the filtrate is neutral, and drying the filtered mixture for 10 hours to obtain carboxylic sodium functionalized graphene; uniformly mixing 1 mL Nafion (RTM: sulfonated tetrafluoroethylene) solution comprising 5% and 8 mL ethanol solution and 1 mL secondary water, adding 10 mg carboxylic sodium functionalized graphene, dispersing for 10 minutes to obtain 1 mg/mL dispersing liquid; polishing glass carbon electrode by aluminum oxide suspension liquid having concentration of 0.3 mu m and 0.05 mu m in a mirror surface orderly, cleaning with 95 vol.% ethanol and secondary distilled water to obtain the processed glass carbon electrode; arranging dispersing liquid and the glass carbon electrode surface processed, and airing at room temperature to obtain the product glass carbon electrode; and carrying out constant potential deposition to the glass carbon electrode in a triple electrode system.