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1. 发明专利

BR102012024229A2 未知
公开(公告)号：BR102012024229A2
公开(公告)日：2013-08-06
申请号：BR102012024229
申请日：2012-09-24
申请人： BAYER IP GMBH , STARCK H C GMBH
发明人： BULAN ANDREAS , WEBER RAINER , ALBRECHT SVEN , MEESE-MARKTSCHEFFEL JULIANE , OBRICH ARMIN
IPC分类号： C25B11/04 , C25B11/08
摘要： A silver oxide is precipitated at 20-80[deg] C by simultaneously adding an aqueous sodium-hydroxide solution and silver nitrate solution to receiver vessel, using a mechanical stirrer to introduce stirring energy of 0.01-10 W/l, and pH is maintained constant to 10-12. The precipitated silver oxide is removed from the suspension. The silver oxide is dried at 80-200[deg] C. The silver oxide is processed with an electroconductive carrier material to obtain a flat oxygen-consuming electrode. A silver oxide is precipitated at 20-80[deg] C by simultaneously adding an aqueous sodium-hydroxide solution and silver nitrate solution to receiver vessel, using a mechanical stirrer to introduce stirring energy of 0.01-10 W/l, and pH is maintained constant to 10-12. The precipitated silver oxide is removed from the suspension. The silver oxide is dried at 80-200[deg] C, optionally under reduced pressure and under inert gas atmosphere. The silver oxide is processed with an electroconductive carrier material, catalyst comprising silver particles, and finely-divided fluorinated polymer to obtain a flat oxygen-consuming electrode. An independent claim is included for electrolysis cell for electrolysis of alkali metal chloride, which comprises oxygen-consuming electrode as cathode.

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