Abstract
Reduction of the transition metal complexes in aqueous solution has been investigated systematically by ascorbic acid as the reducing agent without the assistance of any surfactant. Nanoparticles of α-Mn2O3, Ag and Cu were synthesized directly through aqueous phase reduction at room temperature. Nanoscale metal oxides such as Co3O4, α-Fe2O3 and MoO2 were obtained through ascorbic acid reduction in alkali medium at 40°C. All the products were characterized on their structure and micro-morphology by the X-ray diffraction (XRD) and atomic force microscopy (AFM). The particle size of metal and metal oxides was about 10–50 nm. The reaction details and features were described and discussed.
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