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- W3015859610 abstract "[email protected] Yolk-shell nanostructures with Au-GQDs yolk and AgPt alloy shell have been synthesized through a green wet chemical reduction method. In this process employed Au-GQDs as a yolk to obtain [email protected] nanoparticles (NPs), and then galvanic replacement reaction occurred between PtCl62- and Ag to fabricate [email protected] Yolk-shell nanostructures. GQDs served as a structure-directing and dispersing agent to prepare homogeneous shell. The electrocatalytic performance of the as-synthesized [email protected] Yolk-shell nanostructures for methanol oxidation reaction (MOR) is studied by cyclic voltammetry (CV) and chronoamperometry (CA). The catalyst has displayed excellent specific activity (33.20 mA cm−2), which is approximately 7 times higher than those of commercial Pt/C. And its CO tolerance and stability for MOR are also greatly improved. The results attribute to their particular structure (Yolk-shell nanostructures), electron effect with Ag and Pt, electron transport between GQDs and AgPt shell. The present strategy can provide an environment-friendly and valuable way to fabricate multicomponent nanostructures with Yolk-shell nanostructures." @default.
- W3015859610 created "2020-04-17" @default.
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- W3015859610 date "2020-09-01" @default.
- W3015859610 modified "2023-10-15" @default.
- W3015859610 title "Simple synthesis of the Au-GQDs@AgPt Yolk-shell nanostructures electrocatalyst for enhancing the methanol oxidation" @default.
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