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Updated: Feb 18, 2026
Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance
Published on: April 27, 2018
Platinum-silver alloyed octahedral nanocrystals as electrocatalyst for methanol oxidation reaction
Jiajing Li1, Heng Rong1, Xiaowei Tong1
1Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China.
Abstract:
Previous reports show that the {1 1 1} crystal facets of Pt-based nanocrystal catalysts are highly active for the electrooxidation of methanol. In this work, platinum-silver (Pt-Ag) alloy octahedral nanocrystals with exposed {1 1 1} facets are successfully synthesized through a one-pot, wet-chemical route. The growth mechanism of octahedral nanocrystals can be attributed to the stabilization of {1 1 1} facets by PVP. The electrocatalytic performances of the Pt-Ag octahedral nanocrystals with different Pt/Ag ratio and commercial Pt/C are studied. The results show that the electrocatalytic performances of the Pt-Ag octahedral nanocrystals are much better than that of the commercial Pt/C catalyst, and the Pt-Ag octahedral nanocrystals with a Pt/Ag ratio of 2:1 show the best electrocatalytic performances among the Pt-Ag octahedral nanocrystals. The Pt-Ag octahedral nanocrystals might be a promising candidate as anode catalyst for DMFCs.
