Radiation-assisted synthesis of iridium and rhodium nanoparticles supported on polyvinylpyrrolidone

被引：18
|
作者：
Rojas, J. V. [1 ]
Castano, C. H. [1 ]
机构：
[1] Missouri Univ Sci & Technol, Dept Min & Nucl Engn, Rolla, MO 65409 USA
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2014年 / 302卷 / 01期
关键词：
Iridium nanoparticles; Rhodium nanoparticles; Radiolysis synthesis; Gamma irradiation; Radiation induced chemistry; POLYVINYL PYRROLIDONE; GOLD NANOPARTICLES; HYDROGEN; PLATINUM; CATALYST; PD; POLY(VINYLPYRROLIDONE); NANOCLUSTERS; REDUCTION; GROWTH;
D O I：
10.1007/s10967-014-3291-y
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The controlled synthesis of rhodium (Rh) and iridium (Ir) nanoparticles was carried out by gamma irradiation of aqueous solutions containing the metal precursor salt and polyvinylpyrrolidone (PVP). The nanoparticles were synthesized at various PVP and precursor concentrations with absorbed doses between 20 and 60 kGy. Nanoparticles with average sizes of 2.4 and 2.6 nm and narrow particle size distributions were obtained at metal precursor/PVP concentrations of 6/0.3 and 6/3 mM for Ir and Rh when irradiated at 60 kGy. The interaction of the nanoparticles surfaces with the PVP was studied.
引用
收藏
页码：555 / 561
页数：7
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