A study on hydrogen adsorption of polymer protected Pt nanoparticles

被引：31

作者：

Isobe, Y

Yamauchi, M

Ikeda, R

Kitagawa, H

机构：

[1] Univ Tsukuba, Dept Chem, Tsukuba, Ibaraki 3058571, Japan

[2] JST, PRESTO, Kawaguchi, Saitama 3320012, Japan

来源：

SYNTHETIC METALS | 2003年 / 135卷 / 1-3期

关键词：

Pt nanoparticles; hydrogen absorption; PCT curve;

D O I：

10.1016/S0379-6779(02)00835-4

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

Monodispersed Pt nanoparticles protected with poly(N-vinyl-2-pyrrolidon) were synthesized from H2PtCl6 by the methanol reduction. The structure of obtained nanoparticles was shown to be analogous to that in bulk crystals, and the particle size was determined to be 3.2 +/-0.7 nm from the observation of TEM images. Hydrogen adsorption into particles was investigated by observing PCT curves repeatedly measured at 303 K. From the result of PCT measurements, the amount of absorbed hydrogen in the present size-controlled nanoparticles was found to be more than that in Pt black.

引用

页码：757 / 758

页数：2