Fine tuning of the structure of Pt-Cu alloy nanocrystals by glycine-mediated sequential reduction kinetics

Zhicheng Zhang; Yong Yang; Farhat Nosheen; Pengpeng Wang; Jingchao Zhang; Jing Zhuang; Xun Wang

doi:10.1002/smll.201203200

Fine tuning of the structure of Pt-Cu alloy nanocrystals by glycine-mediated sequential reduction kinetics

Small. 2013 Sep 23;9(18):3063-9. doi: 10.1002/smll.201203200. Epub 2013 Apr 15.

Authors

Zhicheng Zhang¹, Yong Yang, Farhat Nosheen, Pengpeng Wang, Jingchao Zhang, Jing Zhuang, Xun Wang

Affiliation

¹ Department of Chemistry, Tsinghua University, Beijing, 100084, China.

PMID: 23585307
DOI: 10.1002/smll.201203200

Abstract

Uniform Pt-Cu alloy nanocrystals in the shape of dendrite, yolk-cage, and box structures are prepared via a facile wet-chemical reduction route in which glycine is demonstrated to alter the reduction kinetics of metal cations, critical to the morphology of the obtained product. These alloy nanocrystals exhibit superior specific activity and stability in the electro-oxidation of methanol.

Keywords: alloys; electrocatalysis; nanostructures; palladium; platinum.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Alloys / chemistry*
Electrochemistry / methods
Glycine / chemistry*
Kinetics
Nanoparticles / chemistry*
Palladium / chemistry*
Platinum / chemistry*

Substances

Alloys
Platinum
Palladium
Glycine