Electrochemical Synthesis and Catalytic Property of Sub-10 nm Platinum Cubic Nanoboxes

被引：126
|
作者：
Peng, Zhenmeng [1 ]
You, Hongjun [1 ,2 ]
Wu, Jianbo [1 ]
Yang, Hong [1 ]
机构：
[1] Univ Rochester, Dept Chem Engn, Rochester, NY 14627 USA
[2] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Sch Mat Sci & Engn, Xian 710049, Shannxi, Peoples R China
来源：
NANO LETTERS | 2010年 / 10卷 / 04期
基金：
美国国家科学基金会;
关键词：
Platinum; nanobox; nanocube; catalysis; methanol oxidation; REDUCTION ELECTROCATALYTIC PROPERTY; SINGLE-CRYSTAL SURFACES; OXYGEN-REDUCTION; LOW-INDEX; STRUCTURAL-CHANGES; GOLD NANOCAGES; HOLLOW; METHANOL; NANOSTRUCTURES; OXIDATION;
D O I：
10.1021/nl100559y
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We report an electrochemical synthesis of ultrafine Pt cubic nanoboxes from Pt-on-Ag heteronanostructures. These cubic nanoboxes have an average edge length of about 6 nm and a wall thickness of 1.5 nm. Several reaction parameters including the profile of applied potentials were examined to develop an optimal procedure For controlling the size, shape, and surface morphology of the nanoboxes. A strong shape-dependent catalytic property is observed for Pt cubic nanoboxes, which is 1.5 times more active than hollow spheres in terms of turn over frequency for catalytic oxidation of methanol.
引用
收藏
页码：1492 / 1496
页数：5
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