Preparation of silver nanoparticles having low melting temperature through a new synthetic process without solvent.

摘要: This study presents a new synthetic method of silver nanoparticles using novel polyoxyethylene maleate-based surfactant (PEOM). Unlike conventional process large amount solvent to dissolve salts, salts (AgNO3) can be dissolved and stabilized by our without solvent. Silver dissociated within PEOM the formation charge complex between hydrophilic-COOH segments Ag+NO3-, resulting in self-assembled microstructures which acting as nano-reactor stabilizer. After reduction NaBH4, uniform sized were formed hydrophilic domain PEOM. contents colloids changed 0.5 approximately 3 wt%. Distribution nanoparticle sizes was investigated TEM XRD. Melting temperature measured differential scanning calorimetry, depends upon particle size nanoparticles. The lowest melting 112 degrees from 3.5 nm average-sized particles.