Silver selenide (Ag2Se) nanocrystals were synthesized solvothermally using a single source precursor
silver selenite (Ag2SeO3) in the presence of dimethyl formamide (DMF) in an autoclave. The effect of time and
temperature on the crystalline and morphological behavior of the products was investigated. The interaction of
Ag2SeO3 with DMF resulted in the formation of Ag2Se nanoparticles, whereas mixed solvent of DMF and a few
aliphatic alcohols (1:1 (v/v), at 165 °C for 24 h) yielded novel microstructures. The mixed combination containing
methanol−DMF yielded fractal-like morphology, while hollow needle-shaped structures resulted from a ethanol−DMF mixture. Rod shaped structures having riblike morphology were obtained from propanol−DMF mixed solvent.
Nanowires and microfibers of silver have been synthesized by the interaction of silver nitrate (AgNO3) and starch employing hydrothermal route in an autoclave at 170 °C for 24 h. Different mor- phological modifications, e.g., microrods and spheres to microrods/wires and
nanoparticles through microwire bundles to microfibers, are obtained by varying reactant concentrations.
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