Electrochemical Activity of Catalytic Ethanol Oxidation Properties Based on Ru@Pt/CNTs Nanoparticles

Abstract

Abstract: Carbon nanotubes loaded by different ratios of core-shell structured ruthenium platinum nanoparticles (Ru@Pt/CNTs) were prepared by ethanol reduction methods and used as anodic catalysts for direct ethanol fuel cells. The structures of the as synthesized catalysts were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The results show that Ru@Pt/CNTs nanoparticles formed a core-shell structure (the core was ruthenium and the shell was platinum). Meanwhile, the electrochemical measurements demonstrates Ru@Pt/CNTs exhibits ultrahigh electrochemical catalytic activity(Ru@Pt_0.75/CNTs,1 767.77 mA/mg Pt) and durability(Ru@Pt_1.0 CNTs, CV decay of 19.7% after 250 test cycles) in ethanol electro-oxidation reaction(EOR) compared with commercial Pt/C catalysts. Therefore, the Ru@Pt/CNTs nanoparticles with core-shell structure have an excellent catalytic activity for ethanol oxidation.

Key words: platinum, ruthenium, alloy catalyst, CNT, ethanol oxidation reaction

CLC Number:

O734

ZHANG Yujie, XIAO Fengyan, ZHAO Bin. Electrochemical Activity of Catalytic Ethanol Oxidation Properties Based on Ru@Pt/CNTs Nanoparticles[J]. Journal of Synthetic Crystals, 2021, 50(8): 1496-1502.

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