Synthesis and characterization of Rh(PVP) nanoparticles studied by XPS and NEXAFS

被引：42

作者：

Ashida, T. ^{[1
]}

Miura, K.

Nomoto, T.

Yagi, S.

Sumida, H.

Kutluk, G.

Soda, K.

Namatame, H.

Taniguchi, M.

机构：

[1] Nagoya Univ, Grad Sch Engn, Dept Mat Phys & Energy Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[2] Nagoya Univ, Grad Sch Engn, Dept Quantum Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[3] Hiroshima Univ, Ctr Synchrotron Radiat, Higashihiroshima 7398526, Japan

来源：

SURFACE SCIENCE | 2007年 / 601卷 / 18期

基金：

日本科学技术振兴机构;

关键词：

rhodium; nanoparticle; PVP; particle size; TEM; AFM; XPS; NEXAFS;

D O I：

10.1016/j.susc.2007.04.151

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：

Rhodium nanoparticles were synthesized by the reduction of Rh (3+) ion in ethanol solvent with use of the polyvinylpyrrolidone (PVP) of various molecular weights and the solvent of different volume ratios of water to ethanol. The formed Rh(PVP) nanoparticles have been characterized by transmission electron microscopy ITEM), atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS) and near edge X-ray absorption fine structure (NEXAFS) techniques. The TEM and AFM results show that the Rh(PVP) nanoparticles are monodispersed and do not agglomerate with each other. The particle size can be controlled by the molecular weight of PVP and/or the water/ethanol ratio of the solvent. The XPS and NEXAFS results indicate that the chlorine derived from RhCl3(3H(2)O) remains in the obtained nanoparticles but can be removed by heating. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：3898 / 3901

页数：4

共 9 条

[1]

DOHMAE K, 2000, R D REV, V43, P35

[2] Synthesis of colloidal dispersions of rhodium nanoparticles under high temperatures and high pressures [J].