Glycine-Mediated Syntheses of Pt Concave Nanocubes with High-Index {hk0} Facets and Their Enhanced Electrocatalytic Activities

• DOI: 10.1021/la302973r
• Publication Date: 2012-10-10T15:56:55Z
• Authors: Zhi-cheng Zhang; Jun-feng Hui; Zhi-Chang Liu; Xin Zhang; Jing Zhuang; Xun Wang
• Keywords: Surface Properties; Glycine; Metal Nanoparticles; Electrochemical Techniques; Particle Size; 01 natural sciences; Catalysis; Platinum; 0104 chemical sciences

Metal nanocrystals with high-index facets (HIFs) have drawn significant attention for their superior catalysis activity compared to that of low-index faces. However, because the high surface energy HIFs, it is still challenging preserve HIFs during growth nanocrystals. In this study, highly selective Pt concave nanocubes (CNCs) {hk0} been successfully prepared in a simple aqueous solution. The vital role glycine as controller formation CNCs was demonstrated. These exhibited enhanced specific activities toward electro-oxidation methanol and formic acid comparison commercial black Pt/C catalysts.