Recently, the research group of the National Research Center of Hefei Microscale Physical Science and the School of Chemistry and Materials Science of the University of Science and Technology of China, Professor Zeng Jie, and the Professor Huang Hongwen of Hunan University have developed Super by finely regulating the dimensions, dimensions and components of platinum-based catalysts. Fine platinum-nickel ruthenium ternary metal nanowire catalyst.
It is known that the diameter of the nanowire is only one nanometer, and the platinum atom on the surface accounts for more than 50% of the total platinum atomic ratio, exhibiting an ultrahigh atomic utilization rate and providing a structural basis for high catalytic mass activity.
In addition, the oxygen reduction catalysis test showed that the mass activity of the carbon-supported ultrafine platinum nickel ruthenium ternary metal nanowire catalyst was 15.2 times that of the current commercial platinum carbon nanocatalyst. At the same time, after the carbon-loaded ultrafine platinum-nickel-ruthenium ternary metal nanowire catalyst was recycled 10,000 times in an oxygen atmosphere, only 12.8% of the mass activity was lost, while the commercial Pt/C catalyst was After recycling for 10,000 times in an oxygen atmosphere, the loss of mass activity performance reached 73.7%.
According to reports, this is a proton exchange membrane fuel cell cathode catalyst with excellent catalytic activity and stability.
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