Method for preparing platinum-carbon catalyst

• Main Authors: LIU MANHONG, YU WEIYONG, SUI NING, LI DAN, XIAO HAILIAN, BAI QIANG
• Format: Patent
• Language: English
• Published: 29.07.2015
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention belongs to the technical field of catalysis and relates to a method for preparing a platinum-carbon catalyst which is high in activity and stability. The method comprises the following steps: 1, preparing a chloroplatinic acid alcohol solution : diluting the chloroplatinic acid with an alcohol solvent I so as to obtain the chloroplatinic acid alcohol solution; 2, preparing a sodium hydroxide solution : dissolving sodium hydroxide into an alcohol solvent II so as to obtain the sodium hydroxide solution; 3, preparing an activated-carbon-loaded platinum-carbon catalyst: adding the chloroplatinic acid alcohol solution prepared in advance in an activated carbon carrier, then adding the sodium hydroxide solution and carrying out microwave reduction; 4, cooling and drying, after completion of microwave reduction in the step 3, cooling the mixture to room temperature, adding deionized water, the volume of which is the same as that of the mixture, carrying out extraction filtration and washing, and carrying out vacuum drying on the catalyst. According to the invention, the operation is quick and simple, process stability and repeatability are good, active component particles are distributed uniformly, the particle size range is narrow and the fact that the particle size is controllable is realized according to the quantity of sodium hydroxide and the solvents; the catalyst prepared through the preparation method is high in activity and good in stability.