Email this article Oxidation of ethanol on carbon-supported oxide-rich Pd–W bimetallic nanoparticles in alkaline media
- Authors: Liu T.1, Guo Z.1, Li W.1, Pang Z.1, Tong Q.1
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Affiliations:
- Institute of Advanced Energy Materials and Chemistry, Key Lab of Fine Chemicals in University of Shandong, School of Chemistry and Pharmaceutical Engineering
- Issue: Vol 91, No 10 (2017)
- Pages: 1994-2001
- Section: Physical Chemistry of Nanoclusters and Nanomaterials
- URL: https://journals.rcsi.science/0036-0244/article/view/169737
- DOI: https://doi.org/10.1134/S0036024417100363
- ID: 169737
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Abstract
Carbon-supported oxide-rich Pd–W bimetallic nanoparticles were prepared by chemical reduction methods. The existence of oxides in the electrocatalysts is confirmed by X-ray photoelectron spectrum (XPS) and high resolution transmission electron microscopy. XPS analysis indicates that the oxygen atoms account for about 50% of all the atoms in Pd–W bimetallic nanoparticles. Compared to Pd/C catalyst, the carbon-supported oxide-rich Pd–W bimetallic nanoparticles exhibit a better catalytic activity for the anode oxidation of ethanol in alkaline media. The onset potential of the as prepared oxide-rich Pd0.8W0.2/C catalyst (Pd: W = 8: 2, metal atom ratio) for ethanol oxidation is negative shifted about 90 mV comparing to Pd/C catalyst. The oxide-rich Pd–W/C electrocatalysts provide a new model of noble-metal/promoter system as an extreme case of making the promoter (WO3) closely adjacent to the noble metal (Pd) by fabricating nanoparticles containing both atom-clusters of oxides and the noble metal atoms.
About the authors
Tengfei Liu
Institute of Advanced Energy Materials and Chemistry, Key Lab of Fine Chemicals in University of Shandong, School of Chemistry and Pharmaceutical Engineering
Email: liwenpeng@qlu.edu.cn
China, Jinan, 250353
Zengfeng Guo
Institute of Advanced Energy Materials and Chemistry, Key Lab of Fine Chemicals in University of Shandong, School of Chemistry and Pharmaceutical Engineering
Email: liwenpeng@qlu.edu.cn
China, Jinan, 250353
Wenpeng Li
Institute of Advanced Energy Materials and Chemistry, Key Lab of Fine Chemicals in University of Shandong, School of Chemistry and Pharmaceutical Engineering
Author for correspondence.
Email: liwenpeng@qlu.edu.cn
China, Jinan, 250353
Zongjie Pang
Institute of Advanced Energy Materials and Chemistry, Key Lab of Fine Chemicals in University of Shandong, School of Chemistry and Pharmaceutical Engineering
Email: liwenpeng@qlu.edu.cn
China, Jinan, 250353
Qingzhe Tong
Institute of Advanced Energy Materials and Chemistry, Key Lab of Fine Chemicals in University of Shandong, School of Chemistry and Pharmaceutical Engineering
Email: liwenpeng@qlu.edu.cn
China, Jinan, 250353
