Synthesis of fine nickel powders by solvothermal method

Fine nickel powders have been prepared by chemical reduction between nickel acetate and alcohol under solvothermal conditions. The effect of adding surfactant and varying solvent on the particle size of the as-synthesized nickel powders have been explored. SEM, XRD and TG were employed to characterize the size, morphology, crystalline structure and the thermal stability of the as-synthesized nickel powders. It is revealed that the FCC-structured nickel powders are of uniform spherical shape with good crystallinity and thermal stability. Typically, nickel powders with an average size of 300 nm were obtained at 200 degrees C for 8 h using 0.04 mol/L solution of Ni(CH3COO)(2)center dot 4H(2)O in n-butyl alcohol under solvothermal conditions.