Pt-Cu and Pt-Pd-Cu concave nanocubes with high-index facets and superior electrocatalytic activity

An-Xiang Yin; Xiao-Quan Min; Wei Zhu; Wen-Chi Liu; Ya-Wen Zhang; Chun-Hua Yan

doi:10.1002/chem.201102632

Pt-Cu and Pt-Pd-Cu concave nanocubes with high-index facets and superior electrocatalytic activity

Chemistry. 2012 Jan 16;18(3):777-82. doi: 10.1002/chem.201102632. Epub 2011 Dec 13.

Authors

An-Xiang Yin¹, Xiao-Quan Min, Wei Zhu, Wen-Chi Liu, Ya-Wen Zhang, Chun-Hua Yan

Affiliation

¹ Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, PR China.

PMID: 22170590
DOI: 10.1002/chem.201102632

Abstract

Pt-Cu nanostructures: Pt-Cu nanocubes (NCs), concave nanocubes (CNCs), and Pt-Pd-Cu CNCs with high-index facets (HIFs) were prepared through progressive galvanic replacements in a one-pot hydrothermal approach. The HIF-enclosed CNCs showed superior activities to (100)-enclosed NC catalysts for methanol oxidations owing to the modification of both the surface electronic structures and the surface atomic arrangements (see figure).