Electrocatalytic Oxidation of Formic Acid on Pd/Ni Heterostructured Catalyst

Authors

Mingjun Ren, Shanghai Advanced Research Institute, Chinese Academy of Sciences (CAS), Shanghai 201210, China;Graduate School of the CAS, Beijing 100039, China;
Liangliang Zou, Shanghai Advanced Research Institute, Chinese Academy of Sciences (CAS), Shanghai 201210, China;Graduate School of the CAS, Beijing 100039, China;
Ju Chen, Shanghai Advanced Research Institute, Chinese Academy of Sciences (CAS), Shanghai 201210, China;
Ting Yuan, Shanghai Advanced Research Institute, Chinese Academy of Sciences (CAS), Shanghai 201210, China;Graduate School of the CAS, Beijing 100039, China;
Qinghong Huang, Shanghai Advanced Research Institute, Chinese Academy of Sciences (CAS), Shanghai 201210, China;
Haifeng Zhang, Shanghai Advanced Research Institute, Chinese Academy of Sciences (CAS), Shanghai 201210, China;
Hui Yang, Shanghai Advanced Research Institute, Chinese Academy of Sciences (CAS), Shanghai 201210, China;Follow
Songlin Feng, Shanghai Advanced Research Institute, Chinese Academy of Sciences (CAS), Shanghai 201210, China;

Corresponding Author

Hui Yang(yangh@sari.ac.cn)

Abstract

A Pd/Ni bimetallic nanostructured electrocatalyst was fabricated via a two-step reduction route. Owing to an epitaxial growth of Pd atoms on the surface of Ni nanoparticles, heterostructured Pd/Ni nanocomposites were formed and verified by high resolution transmission electron microscopy combined with energy-dispersion X-ray spectroscopy. X-ray diffraction confirmed that the as-prepared Pd/Ni nanocomposites possessed a single face-centered-cubic (fcc) Pd structure, probably due to a weaker diffraction intensity of metallic Ni and/or overlapping by that of Pd. The intrinsic catalytic activity on the Pd/Ni is higher than that on the Pd. Moreover, the durability of formic acid oxidation on the Pd/Ni was much enhanced over the Pd nanoparticles. The change in electronic structure of the surface coordination unsaturated Pd atoms and the possible dissolution of Ni species from the Pd/Ni heterostructure may account for such an improved durability for formic acid oxidation.

Graphical Abstract

Keywords

formic acid oxidation, electrocatalysis, Pd/Ni heterostructure, durability

DOI Link

https://doi.org/10.61558/2993-074X.2620

Publication Date

2012-12-28

Online Available Date

2012-09-07

Revised Date

2012-09-05

Received Date

2012-06-08

Recommended Citation

Mingjun Ren, Liangliang Zou, Ju Chen, Ting Yuan, Qinghong Huang, Haifeng Zhang, Hui Yang, Songlin Feng. Electrocatalytic Oxidation of Formic Acid on Pd/Ni Heterostructured Catalyst[J]. Journal of Electrochemistry, 2012 , 18(6): Article 4.
DOI: 10.61558/2993-074X.2620
Available at: https://jelectrochem.xmu.edu.cn/journal/vol18/iss6/4