| Literature DB >> 27860266 |
Yalin Xiong1, Hao Shan2, Zhengnan Zhou1, Yucong Yan1, Wenlong Chen2, Yaxiong Yang1, Yongfeng Liu1, He Tian1, Jianbo Wu2, Hui Zhang1, Deren Yang1.
Abstract
Icosahedral, octahedral, and cubic Pd@Pt core-shell nanocrystals with two atomic Pt layers are epitaxially generated under thermodynamic control. Such icosahedra exhibit remarkably enhanced catalytic properties for oxygen reduction reaction compared to the octahedra and cubes as well as commercial Pt/C, which can be attributed to ligand and geometry effects, especially twin-induced strain effect that is revealed by geometrical phase analysis.Entities:
Keywords: Pd@Pt core-shell nanocrystals; Pt ultrathin shells; oxygen reduction reaction; surface strain; surface structures
Year: 2016 PMID: 27860266 DOI: 10.1002/smll.201603423
Source DB: PubMed Journal: Small ISSN: 1613-6810 Impact factor: 13.281