Smart design of hollow AuPt nanospheres with a porous shell as superior electrocatalysts for ethylene glycol oxidation

Authors

Qingqing Lu, Chinese Academy Of Sciences
Changting Wei, Chinese Academy of Sciences
Litai Sun, Chinese Academy of Sciences
Zeid A. Al Othman, King Saud University
Victor Malgras, National Institute for Materials Science, JapanFollow
Yusuke Yamauchi, King Saud University, National Institute for Materials ScienceFollow
Hongjing Wang, Zhejiang University of Technology
Liang Wang, University of Wollongong, Zhejiang University of TechnologyFollow

RIS ID

121356

Publication Details

Lu, Q., Wei, C., Sun, L., Al Othman, Z. A., Malgras, V., Yamauchi, Y., Wang, H. & Wang, L. (2016). Smart design of hollow AuPt nanospheres with a porous shell as superior electrocatalysts for ethylene glycol oxidation. RSC Advances: an international journal to further the chemical sciences, 6 (23), 19632-19637.

Abstract

Hollow bimetallic electrocatalysts have recently stimulated increasing attention due to their accessible interior surface and bimetallic synergetic effect. Herein, for the first time, we successfully anchor a porous AuPt shell on modified silica spheres with the assistance of Pluronic F127. The whole process consists of simple ultrasonic mixing for 30 min at room temperature without any organic solvent. After metal deposition and silica etching, well-defined hollow structures are obtained in high yield. The hollow spheres are further characterized by scanning electron microscopy and transmission electron microscopy. The electrochemical analysis reveals that the as-prepared samples demonstrate superior electrocatalytic activity and durability relative to the commercial Pt/C catalyst, showcasing the potential of these AuPt hollow spheres as electrocatalysts for ethylene glycol oxidation in an alkaline medium.