MOF-based platinum monatomic catalyst, and preparation and application thereof
A catalyst and atom technology, which is applied in the field of electrochemical energy, achieves the effects of simple preparation method, reduced cost, and favorable promotion and use
Pending Publication Date: 2021-06-25
TONGJI UNIV
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Abstract
The invention belongs to the technical field of electrochemical energy, and provides an MOF-based platinum monatomic catalyst, preparation and application. Zirconium chloride, 2-aminoterephthalic acid and a platinum source are used as raw materials, a regulating acid is used for regulating the nucleation speed of a metal framework, and the MOF-based platinum monatomic catalyst is synthesized in situ through a solvothermal method. The molar ratio of the zirconium chloride to the 2-aminoterephthalic acid to the platinum source is 0.9: 0.9: (0.5-3), and the high-temperature carbonization temperature is 800-1000 DEG C. The catalyst takes a metal framework as a monatomic carrier, and platinum is dispersed on the metal framework in a monatomic dispersion state. The catalyst is applied to a fuel cell cathode, a fuel cell cathode electrode with high electrochemical performance is prepared, the half slope point position of the electrode in a 0.1 M KOH solution is 0.75 V, and the stability of the electrode in an ammonia solution is higher than that of commercial platinum carbon. The preparation method is simple, the cost of the catalyst is reduced to a great extent, and popularization and application are facilitated.
Application Domain
Cell electrodes
Technology Topic
CarbonizationMetal framework +9
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