▎ 摘　　要

(CN216964640-U) NOVELTY - The utility model claims a micro-channel reactor for preparing carbon-supported platinum-based alloy catalyst, the micro-channel reactor is provided with a micro-channel and a heating medium chamber, the reactor main body is provided with a feeding port, a discharging port, a heating medium inlet, a heating medium outlet, the periphery of the reactor main body is integrally provided with an ultrasonic wave generator; the micro-channel is arranged in the heating medium chamber, a micro-channel and the feeding port, a discharging port communicate a heating medium chamber and the heating medium inlet, a heating medium outlet communicate The micro-channel reactor of the utility model can effectively promote fully mixing of the reactant, avoid solid particle deposition blocking reactor channel, continuously preparing to obtain the platinum-based alloy catalyst with high catalytic activity. DETAILED DESCRIPTION - Preparing carbon-supported platinum-based alloy catalyst, comprises (i) dissolving the platinum-containing compound and transition metal compound in a reducing alcohol solvent, stirring, mixing, controlling the pH of the solution within the range of 8-12 by dropwise adding an alkaline solution to obtain reaction precursor solution, where the platinum-containing compound includes chloroplatinic acid and/or platinum acetylacetonate, the transition metal includes cobalt, iron, copper, and/or nickel and the transition metal compound includes chlorides, sulfates and/or nitrates of transition metals, (ii) adding the reaction precursor solution into ultrasonic-auxiliary micro-channel reactor and reacting at 100-180℃ for 10-40 minutes to obtain catalyst intermediate, (iii) adding carbon material powder into water or alcohol solvent to obtain a carbon powder solution, mixing and stirring the carbon powder solution with the catalyst intermediate for 10-20 minutes to obtain a catalyst solution and the carbon material includes graphite, carbon black, carbon nanotube or graphene, and (iv) filtering the catalyst solution, drying and grinding to obtain final product. An INDEPENDENT CLAIM is also included for microchannel reactor for preparing carbon-supported platinum-based alloy catalyst. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the micro-channel reactor.