Preparation of Highly Stabilized Silver Nanopowders by the Thermal Reduction and Their Properties

Bulletin of the Korean chemical society

Kyoung-Young Kim¹  Chan-Kyo Park¹  Myoung-Seon Gong¹ 

关键词: Silver 2-ethylhexylcarbamate;    Nanopowders;    Thermal reduction;    Silver nano-paste;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Silver nanopowders were prepared from silver 2-ethylhexylcarbamate (Ag-EHCB) complexes by simple thermal reduction at 85 oC without any reducing agent in organic solvent. 2-Ethylhexylammonium 2- ethylhexylcarbamate (EHAEHC) was investigated in terms of their abilities to stabilize the silver nanoparticles (Ag-NPs) and its subsequent effects on the preventing aggregation between Ag-NPs. Conditions (concentration of stabilizer and reaction time) used to reduce Ag-EHCB complex were systematically varied to determine their effects on the sizes of Ag-NPs. The formation of the stabilized Ag-NPs were easily monitored by UV-vis spectroscopy and characterized by TGA, TEM, SEM and XRD. When EHAEHC was used as a stabilizer, Ag- NPs of 10-30 nm in diameter were easily obtained in high yield. Silver patterns were obtained from a silver nano-paste by heat treatment at 200 oC in air and were found to have resistivity values of 2.9 × 10−8 Ω·m.

【 授权许可】

Unknown