Sophisticated Construction of Binary PdPb Alloy Nanocubes as Robust Electrocatalysts toward Ethylene Glycol and Glycerol Oxidation

Hui Xu^†,Pingping Song^†,Carlos Fernandez^§,Jin Wang^†,Mingshan Zhu*^‡（朱明山）,Yukihide Shiraishi^∥, andYukou Du*^†∥（杜玉扣）

^†College of Chemistry, Chemical Engineering and Materials Science,Soochow University,Suzhou215123,P. R. China

^‡Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment,Jinan University,Guangzhou510632,P. R. China

^§School of Pharmacy and Life Sciences Robert Gordon University,AberdeenAB10 7GJ,U.K.

^∥Tokyo University of Science Yamaguchi,Sanyo-Onoda-shi,Yamaguchi756-0884,Japan

ACS Appl. Mater. Interfaces,2018,10(15), 12659--12665

The design of nanocatalysts by controlling pore size and particle characteristics is crucial to enhance the selectivity and activity of the catalysts. Thus, we have successfully demonstrated the synthesis of binary PdPb alloy nanocubes (PdPb NCs) by controlling pore size and particle characteristics. In addition, the as-obtained binary PdPb NCs exhibited superior electrocatalytic activity of 4.06 A mg^–1and 16.8 mA cm^–2toward ethylene glycol oxidation reaction and 2.22 A mg^–1and 9.2 mA cm^–2toward glycerol oxidation reaction when compared to the commercial Pd/C. These astonishing characteristics are attributed to the attractive nanocube structures as well as the large number of exposed active areas. Furthermore, the bifunctional effects originated from Pd and Pb interactions help to display high endurance with less activity decay after 500 cycles, showing a great potential in fuel cell applications.

链接：https://pubs.acs.org/doi/10.1021/acsami.8b00532