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本文报道了制备纳米Ag的最佳方法—银氨配离子还原法通过对这种方法制备的粉体粒度的评估，确认此方法制备的纳米Ag颗粒分散性好，颗粒尺寸分布范围窄，最小粒径为15nm．
In this paper, the best method for preparing nano-Ag was reported. The silver-ammonia ion-reduction method was used to evaluate the particle size of the prepared nano-Ag particles. It was confirmed that the nano-Ag particles prepared by this method have good dispersibility, narrow particle size distribution, The diameter is 15nm.