Template-Free Synthesis of Porous Platinum Networks of Different Morphologies

被引：21

作者：

Xie, Jianping ^{[1
]}

Zhang, Qingbo ^{[2
]}

Zhou, Weijiang ^{[2
]}

Lee, Jim Yang ^{[1
,2
]}

Wang, Daniel I. C. ^{[1
,3
]}

机构：

[1] Natl Univ Singapore, Singapore MIT Alliance, Singapore 117576, Singapore

[2] Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 119260, Singapore

[3] MIT, Dept Chem Engn, Cambridge, MA 02139 USA

来源：

LANGMUIR | 2009年 / 25卷 / 11期

关键词：

HIGH-YIELD SYNTHESIS; NANOPARTICLES; SHAPE; NANOSTRUCTURES; NANOCRYSTALS; NANOWIRES; CLUSTERS; SILVER; REDUCTION; SIZE;

D O I：

10.1021/la900037g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A simple one-pot template-free synthesis was used to form porous Pt networks from the CO-induced self-organization of monodisperse primary Pt nanoparticles. Spherical, rod-shaped, knot-like, multibranched, and hyperbranched porous networks could be obtained under different conditions through changes in the reaction temperature and citrate ion concentration. The formation of these porous platinum networks could be rationalized by a mechanism where citrate ions and Chini-like platinum carbonyl clusters formed upon CO exposure are the most important contributors.

引用

页码：6454 / 6459

页数：6

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