AgO材料的制备及稳定性研究  

Study on the Preparation and Stability of AgO Material

作　　者：原勇强[1] 崔益秀[1] 冯秀丽[1] 

机构地区：[1]中国工程物理研究院电子工程研究所,四川绵阳621900

出　　处：《中国材料科技与设备》2015年第5期7-10,共4页Chinese Materials Science Technology & Equipment

基　　金：中国工程物理研究院院基金基金资助项目（201280302045）

摘　　要：利用液相沉淀法制备高纯度的AgO材料，并对其物性表征及电化学性能测试。采用XRD研究反应不同时间的AgO材料的晶格参数，发现反应时间的增加，AgO材料的晶粒主要在（111）方向增长。研究表明该方法合成的AgO材料为片状结构，但反应时间对其形貌和粒径影响较小。同时，测试材料热稳定性发现，大粒径的AgO在常温下的分解速率要远低于小粒径的AgO材料。另外AgO粉末在水溶液中也存在分解，分解生成Ag20后进一步发生水解，导致AgO水溶液的pH保持为10。The present paper reports the synthesis, characterization and thermal stability of a AgO material. The studies results show that AgO material with high purity was synthesized by a chemical precipitation method, X-- ray diffraction （XRD） studies showed that the crystallite size varied with reaction times. Scanning electron microscopy （SEM） and laser par- ticle size instrument revealed that the reaction times had a little influence on the morphology of the AgO powder. It＇s found that the thermal stability of large particles is much better than that of small particles. At the same time, AgO powder also ex- ists decomposition property in aqueous solution and decomposes into Ag2O powder which hydrolyzes into alkaline solution.

关 键 词：AGO 锌银电池 正极材料 

分 类 号：TM912.9[电气工程—电力电子与电力传动] O646[理学—物理化学]