Shape-Selective Synthesis and Facet-Dependent Enhanced Electrocatalytic Activity and Durability of Monodisperse Sub-10 nm Pt-Pd Tetrahedrons and Cubes

被引：412

作者：

Yin, An-Xiang ^{[1
]}

Min, Xiao-Quan ^{[1
]}

Zhang, Ya-Wen ^{[1
]}

Yan, Chun-Hua ^{[1
]}

机构：

[1] Peking Univ, PKU HKU Joint Lab Rare Earth Mat & Bioinorgan Che, State Key Lab Rare Earth Mat Chem & Applicat, Beijing Natl Lab Mol Sci,Coll Chem & Mol Engn, Beijing 100871, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2011年 / 133卷 / 11期

关键词：

RUTHENIUM AD-ATOMS; METAL NANOCRYSTALS; METHANOL ELECTROOXIDATION; PLATINUM NANOPARTICLES; CATALYTIC-ACTIVITY; OXYGEN REDUCTION; SURFACE SCIENCE; OXIDATION; TECHNOLOGIES; PARTICLES;

D O I：

10.1021/ja200329p

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Monodisperse single-crystalline sub-10 nm Pt-Pd nanotetrahedrons (NTs) and nanocubes (NCs) were synthesized with high shape selectivity via one-pot hydrothermal routes with small ions as efficient facet-selective agents. These alloy nanocrystals showed facet-dependent enhanced electrocatalytic activity and durability for methanol electrooxidations with commercial Pt/C catalyst as a reference. The (100)-facet-enclosed Pt-Pd NCs demonstrated a higher activity, whereas the (111)-facet-enclosed Pt-Pd NTs exhibited a better durability.

引用

页码：3816 / 3819

页数：4

共 49 条

[1] Structural properties of nanoclusters: Energetic, thermodynamic, and kinetic effects [J].