Surface-Enhanced Raman Scattering Study of Silver Nanoparticles Prepared by Using MC as a Template

Figure 5

SEM images of the products obtained by different concentrations of sodium citrate (10 mM silver ammonia chloride, 0.2% MC): (a) 0.05% sodium citrate; (b) 0.1% sodium citrate; (c) 0.2% sodium citrate; (d) 0.3% sodium citrate.