摘要
利用商业轻质氧化镁为原料,通过一锅离子交换结合低温热处理的方法实现了铜钴复合氧化物的制备。分析表明,所合成的复合氧化物具有高度分散的结构、较大的比表面积和均匀的元素分布。其作为电极用于储能型超级电容器,实现了优于单一氧化物的超级电容器性能,在电流密度为1 A/g时,复合氧化物的比电容高达650 F/g;在功率密度为775 W/kg时,复合氧化物电极的能量密度高达37.8 W·h/kg。当铜和钴的质量比为1∶2的复合氧化物用于光催化还原CO_(2)时,同时实现了较高的甲烷和一氧化碳收率。
Copper and cobalt binary composite oxides are prepared through a one-pot ion exchange method combined with low-temperature heat treatment by using commercial lightweight magnesium oxide as raw material.It is indicated by analysis that the synthesized composite oxides have a highly-dispersed structure,a large specific surface area,and uniform element distribution.The composite oxides are used as an electrode for an energy storage supercapacitor,which can achieve superior supercapacitor performance compared to single oxide.At a current density of 1 A/g,the specific capacitance of the composite oxides is as high as 650 F/g.At a power density of 775 W/kg,the energy density of composite oxide electrodes is as high as 37.8 Wh/kg.High methane and carbon monoxide yields are simultaneously achieved when the composite oxides with a copper to cobalt ratio of 1∶2 are served as a catalyst for photocatalytic reduction of CO_(2).
作者
桂玉梅
余昕
刘顺强
张萍
解明江
GUI Yu-mei;YU Xin;LIU Shun-qiang;ZHANG Ping;XIE Ming-jiang(Jiangsu Provincial Engineering Research Center of Visible Light Catalytic Materials,Lianyungang Technical College,Lianyungang 222006,China;Hubei Key Laboratory for Processing and Application of Catalytic Materials,Huanggang Normal University,Huanggang 438000,China)
出处
《现代化工》
北大核心
2025年第9期173-181,共9页
Modern Chemical Industry
基金
江苏省可见光催化材料工程研究中心开放课题(JECVCM202202)
江苏省职业教育纳米新材料“双师型”名师工作室项目(20220813)。
