| Abstract |
| Preparation of silver powders by electroreduction of silver compounds was investigated. Three types of silver compounds were prepared by precipitation: silver chloride, silver sulfate, and silver phosphate. Almost complete conversion of silver phosphate to silver was verified by X-ray diffraction analysis and inductively coupled plasma spectrometry. The shape of silver phosphate powder was not changed during the reaction, but the size was reduced. Raising the electrolyte temperature, however, increased the solubility of silver phosphate, leading to an appreciable change in the shape of the reduced silver powder. The proposed electroreduction mechanism of silver phosphate is a solidstate reaction, which is affected by dissolution and crystallization under high solubility conditions. |
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| Key Words |
| Electroreduction, Silver compound, Silver powder, Solid-state reaction, Dissolution and Crystallization |
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