Solvent-free synthesis of monodisperse Cu nanoparticles by thermal decomposition of an oleylamine-coordinated Cu oxalate complex

被引：24

作者：

Togashi, Takanari ^{[1
]}

Nakayama, Masato ^{[1
]}

Hashimoto, Atsuki ^{[1
]}

Ishizaki, Manabu ^{[1
]}

Kanaizuka, Katsuhiko ^{[1
]}

Kurihara, Masato ^{[1
]}

机构：

[1] Yamagata Univ, Dept Mat & Biol Chem, Fac Sci, 1-4-12 Kojirakawamachi, Yamagata 9908560, Japan

来源：

DALTON TRANSACTIONS | 2018年 / 47卷 / 15期

基金：

日本学术振兴会;

关键词：

NOBLE-METAL NANOCRYSTALS; COPPER NANOPARTICLES; NANOCUBES; ROUTE;

D O I：

10.1039/c8dt00345a

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Cu nanoparticles (NPs) are widely used in numerous applications because of their unique optical, catalytic, and electrical properties. However, the synthesis of monodisperse Cu NPs often involves harmful reducing agents under an inert atmosphere in a solution with low Cu ion concentrations. In this study, monodisperse Cu NPs were synthesized by the thermal decomposition of an oleylamine-coordinated Cu oxalate (Cu(ox)) complex (OA-Cu(ox)) in oleylamine in air with no reducing agent. The structure of OA-Cu(ox) was analyzed using Fourier-transform infrared spectroscopy. The decomposition temperature of the oxalate ion was reduced to 130 degrees C from that of Cu(ox) (300 degrees C) because of the coordination of the primary amino group of oleylamine with the Cu ion of Cu(ox). Furthermore, the decomposition temperature of OA-Cu(ox) strongly affected the size distribution of the synthesized Cu NPs. Monodisperse Cu NPs were successfully synthesized by the thermal decomposition of OA-Cu(ox) at temperatures higher than 240 degrees C with high yield (similar to 90%). The synthesized Cu NPs were readily dispersed in toluene.

引用

页码：5342 / 5347

页数：6

共 36 条

[1] Copper conductive inks: synthesis and utilization in flexible electronics [J].