Abstract
nanosilver powder has high surface activity, catalysis property and wide usage, so it is important to study its preparation method. In this paper, nanosilver powder was prepared with industrial AgNO3 as raw materials, hydrazine hydrate as the reducing agent, polyvinylpyrrolidone (PVP) as the polymeric protective agent, polyethylene glycol as the dispersing agent by solution chemical reduction method. The effects of AgNO3 concentration on the preparation of nanosilver were studied, and the final product was examined with TEM testing. The test results show that it can be obtained flake nanosilver with good performance by controlling the reaction conditions, such as dispersion, stability and crystal properties.
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