Study on the factors affecting the morphology of silver powder in liquid phase chemical reduction

AbstractPreparation of silver powder by liquid-phase reduction process with ascorbic acid and silver nitrate. Through single factor experiments, the influence of factors such as the reducing agent, the pH value of silver nitrate solution, the feeding method and the post-treatment method of dispersant on the morphology of silver powder was studied. The best condition for using orthogonal experiments to obtain silver nitrate is that added directly into the ascorbic acid, the pH value of silver nitrate is 10, and the post-treatment method is alcohol washing and vacuum drying.Keywords: Liquid-phase reductionsilver powdermorphologyascorbic acid Additional informationFundingThis work was financially supported by Postgraduate Research & Practice Innovation Program of Jiangsu Province (SJCX20_1029).