| Silver nanowires with a diameter of about 40 nm and having both uniform diameter distribution and good dispersion, were prepared via the hydrothermal reaction in aqueous solution by using sucrose as reducing agent, NaCl as complexing agent and PVP as surfactant. The problems resulting from the preparation of nano-silver wire in the polyol organic system, such as the difficulty in washing, harsh reaction conditions and complicated post-treatment, can effectively be solved by the preparative mehod developed in the study. The effects of the amount of reducing agent, the type of reducing agent and halide and surfactant, and the molar ratio of Cl-/Ag+, on the morphology of the product were investigated systematically. The results show that silver nanowires will have a uniform morphology with high purity and the ratio of the length to diameter of the nanowires can exceed 1000, when NaCl is selected as the complexing agent and the amount of sucrose, the relative molecular weight of PVP and the molar ratio of Cl-/Ag+ are set at 0.18g, 58000 and 1.26, respectively. |
