Shape-dependent catalytic activity of platinum nanoparticles in colloidal solution

被引：1030

作者：

Narayanan, R ^{[1
]}

El-Sayed, MA ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Chem & Biochem, Laser Dynam Lab, Atlanta, GA 30332 USA

来源：

NANO LETTERS | 2004年 / 4卷 / 07期

关键词：

D O I：

10.1021/nl0495256

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The activation energies and the average rate constants are determined in the 298 K-318 K temperature range for the early stages of the nanocatalytic reaction between hexacyanoferrate (111) and thiosulfate ions using 4.8 +/- 0.1 nm tetrahedral, 7.1 +/- 0.2 nm cubic, and 4.9 +/- 0.1 nm "near spherical" nanocrystals. These kinetic parameters are found to correlate with the calculated fraction of surface atoms located on the corners and edges in each size and shape.

引用

页码：1343 / 1348

页数：6

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