Controllable Galvanic Synthesis of Triangular Ag-Pd Alloy Nanoframes for Efficient Electrocatalytic Methanol Oxidation

Triangular Ag–Pd alloy nanoframes were successfully synthesized through galvanic replacement by using Ag nanoprisms as sacrificial templates. The ridge thickness of the Ag‐Pd alloy nanoframes could be readily tuned by adjusting the amount of the Pd source during the reaction. These obtained triangul...

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Bibliographic Details
Published in:Chemistry : a European journal 2015-06, Vol.21 (24), p.8691-8695
Main Authors: Xu, Lin, Luo, Zhimin, Fan, Zhanxi, Yu, Sijia, Chen, Junze, Liao, Yusen, Xue, Can
Format: Article
Language:English
Subjects:
bimetallic alloys
Bimetals
Catalysts
Chemistry
Fuel cells
galvanic replacement
methanol
Methyl alcohol
nanoframes
Nanostructure
Oxidation
Palladium
Silver
Silver base alloys
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Summary:Triangular Ag–Pd alloy nanoframes were successfully synthesized through galvanic replacement by using Ag nanoprisms as sacrificial templates. The ridge thickness of the Ag‐Pd alloy nanoframes could be readily tuned by adjusting the amount of the Pd source during the reaction. These obtained triangular Ag–Pd alloy nanoframes exhibit superior electrocatalytic activity for the methanol oxidation reaction as compared with the commercial Pd/C catalyst due to the alloyed Ag–Pd composition as well as the hollow‐framed structures. This work would be highly impactful in the rational design of future bimetallic alloy nanostructures with high catalytic activity for fuel cell systems. Better than the standard: Triangular Ag–Pd alloy nanoframes were synthesized through galvanic replacement by using Ag nanoprisms as sacrificial templates. These triangular Ag–Pd alloy nanoframes exhibit superior electrocatalytic activity for the methanol oxidation reaction as compared with the commercial Pd/C catalyst (see figure).
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.201406677