在850℃的CaCl2熔盐中,以烧结后的Co3O4片体为阴极,高密度石墨碳棒为阳极,采用恒电压电解,成功制备出金属Co.采用扫描电子显微镜(SEM)分析样品电解前后的微观形貌;采用X射线衍射仪(XRD)分析电解产物的相组成.结果表明,烧结温度越高,试样的孔隙率越低,颗粒越大,电解速率越慢,产物的颗粒越大.经850℃烧结的氧化物试样,在3.1V工作电压下电解12h,可制备出海绵状纯相的金属Co.
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