Uncoated negatively charged silver nanoparticles: speeding up the electrochemical synthesis

作者：Scotti Luca^*; Angelini Guido; Ga**arri Carla; Bucciarelli Tonino

来源：Materials Research Express, 2017, 4(10): 105001.

DOI：10.1088/2053-1591/aa8c39

• silver nanoparticles
• electrochemical synthesis
• colloids

A new electronic device has been assembled and employed to obtain a stable solution of spherical uncoated silver nanoparticles (SNPs) in only 10 min. Time of current inversion phase, number of electrodes and purification procedure have been optimized; different techniques as UV-vis spectroscopy, transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM), dynamic laser light scattering (DLS) have been carried out to characterize the SNPs in size, shape and morphology. The stability of the SNPs solution has been tested by Zeta-Potential measurements. The results presented herein show that the obtained nanoparticles kept in the dark at 5 degrees C under inert atmosphere remain stable for at least 1 month.

• 出版日期2017-10