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
收藏
页码：3816 / 3819
页数：4
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