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ACO particles obtained during the early stages of nucleation in the absence of PAA. (a) TEM images of ACO particles, (b) TEM images and SAED pattern of ACO nanoparticles. And in presence of PAA with (c) 10 mg/L PAA, (d) 50 mg/L, (e) 100 mg/L PAA, (f) ACO nanoparticle showing different electron-densities.
