Electrocatalytic Oxidation of Formate on Pd-Cu/C - Effect of Dealloying Pretreatment

Authors

JIANG Kun, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, Fudan University, Shanghai 200433, China;
WANG Ye, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, Fudan University, Shanghai 200433, China;
LIN Tao, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, Fudan University, Shanghai 200433, China;
CAI Wen-bin, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, Fudan University, Shanghai 200433, China;Follow

Corresponding Author

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

Abstract

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

Keywords

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

DOI Link

https://doi.org/10.13208/j.electrochem.131173

Publication Date

2014-08-28

Online Available Date

2014-04-10

Revised Date

2014-04-01

Received Date

2014-01-24

Recommended Citation

JIANG Kun, WANG Ye, LIN Tao, CAI Wen-bin. Electrocatalytic Oxidation of Formate on Pd-Cu/C - Effect of Dealloying Pretreatment[J]. Journal of Electrochemistry, 2014 , 20(4): 343-348.
DOI: 10.13208/j.electrochem.131173
Available at: https://jelectrochem.xmu.edu.cn/journal/vol20/iss4/7