Fig. 2.
SEM image of Cu nanoparticles. The nanoparticles appear as (grey coloured) sphereical nanoparticles and the purified concentrated sample still show no signs of aggregation.
SEM image of Cu nanoparticles. The nanoparticles appear as (grey coloured) sphereical nanoparticles and the purified concentrated sample still show no signs of aggregation.