Corresponding Author

CAI Wen-bin(wbcai@fudan.edu.cn)


Carbon supported highly dispersed Pd-Cu nanoalloy catalyst toward formate electrooxidation is prepared via one-pot synthesis by using ethylene glycol as the reducing agent and sodium citrate as the stabilizer. The as-prepared catalyst is structurally characterized by TEM and XRD. The Cu dealloyment is carried out through repetitive potential cycling of the Pd-Cu/C catalyst in an acidic solution. The dealloying effect on the performance of the Pd-Cu/C is investigated by using cyclic voltammetry and chronoamperometry, and the surface structural change of Pd-Cu/C is probed by in situ ATR-IR measurement. The results show that the as-prepared Pd-Cu/C processes a better long-term stability than the dealloyed one in electrocatalytic oxidation of formate, while the dealloyed Pd-Cu/C exhibits a higher initial electrocatalytic activity.

Graphical Abstract


Pd-Cu alloy, electrocatalysts, formate ion, electrooxidation, dealloying effect

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