Hollow platinum spheres with nano-channels: Synthesis and enhanced catalysis for oxygen reduction

被引：217

作者：

Chen, Hao Ming ^{[1
]}

Liu, Ru-Shi ^{[1
]}

Lo, Man-Yin ^{[2
]}

Chang, Sung-Chun ^{[2
]}

Tsai, Li-Duan ^{[2
]}

Peng, Yu-Min ^{[2
]}

Lee, Jyh-Fu ^{[3
]}

机构：

[1] Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan

[2] Ind Technol Res Inst, Mat Chem Res Labs, Chutung 310, Taiwan

[3] Natl Synchrotron Radiat Res Ctr, Hsinchu 300, Taiwan

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 20期

关键词：

D O I：

10.1021/jp8017698

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Hollow nanostructures are a particularly interesting class of materials that have unusual chemical and physical characteristics that are determined by their shape and composition. A facile procedure for the hollow Pt nanosphere catalysts with nanochannels was developed; the catalysts can be simply prepared at room temperature with silver nanoparticles as sacrificial templates. The incomplete shell of hollow nanospheres may provide the interior surface for the catalytic reaction, and the high surface area of Pt nanospheres leads to a higher catalytic activity. Consequently, these results demonstrate a simple route to enhance the catalytic efficiency of Pt catalysts by a simple improvement.

引用

页码：7522 / 7526

页数：5

共 36 条

[1] Sensitivity of Pt x-ray absorption near edge structure to the morphology of small Pt clusters [J].