Preparation of metallic silver from Ag2S slurry by direct hydrogen reduction under hydrothermal conditions

Preparation of metallic silver from Ag2S slurry by direct hydrogen reduction under hydrothermal conditions

Metallic silver has been prepared by direct hydrogen reduction of Ag2S in basic slurry under hydrothermal conditions. The XRD pattern and SEM micrographs of the reaction product are given. Metallic silver was predominant in the reduction product obtained by using ZnO as additive and PdCl2 as catalys...

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Veröffentlicht in:Materials letters 2007-02, Vol.61 (4-5), p.1020-1022
Hauptverfasser: Liang, Huanzhen, Tang, Qing, Yu, Kening, Li, Shaohua, Ke, Jiajun
Format: Artikel
Sprache:eng
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Zusammenfassung:Metallic silver has been prepared by direct hydrogen reduction of Ag2S in basic slurry under hydrothermal conditions. The XRD pattern and SEM micrographs of the reaction product are given. Metallic silver was predominant in the reduction product obtained by using ZnO as additive and PdCl2 as catalyst at 220 deg C, pH 12.0 and 2-3MPa of partial hydrogen pressure for 4h.
ISSN:0167-577X
DOI:10.1016/j.matlet.2006.06.060