Iron-chromium alloy nanoparticles produced by pulsed sonoelectrochemistry: Synthesis and characterization

摘要

This study describes synthesis of Fe-Cr alloy nanoparticles by using a method which couples electrodeposition of metals with the employment of high power ultrasound. The production of alloyed nanoparticles was performed using a 20 kHz titanium alloy horn ultra-sound generator, a "sonoelectrode" generating short current pulses (t_(ON)) triggered and followed immediately by ultrasonic pulses (t_(US))-A rest time (t_r) restores the initial conditions close to the sonoelectrode. The final product is a suspension of nanoparticles with high purity and high surface/volume ratio, which could be controlled by varying process parameters like time management and current density.