首页|ZnCo2O4@CoWO4纳米复合材料的制备工艺及电化学性能研究

ZnCo2O4@CoWO4纳米复合材料的制备工艺及电化学性能研究

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采用水热合成法在泡沫镍基体上生长ZnCo2O4纳米针阵列,并在其表面沉积CoWO4纳米片,进而制备核壳ZnCo2O,@CoWO4复合电极材料.利用SEM、XRD和电化学工作站表征了电极材料的微观形貌、相结构和电化学性能.结果表明:ZnCo2O4@CoWO4电极材料的微观形貌呈棒状,CoWO4纳米片紧紧地包裹在ZnCo2O,纳米针的表面,同时其电化学性能在单体的基础上明显提高.ZnCo2O4@CoWO4复合电极材料具有高比容量,充放电循环性能增强,能有效地解决单体ZnCo2O4材料导电性差和体积膨胀带来的循环稳定性差的问题.
Preparation and Electrochemical Properties of ZnCoO4@CoWO4 Nanocomposites
ZnCo2O4 nanoneedle arrays were grown on nickel foam by hydrothermal synthesis method,and then CoWO4 nanosheets were deposited on the surface to prepare a core-shell ZnCo2O4@CoWO4 composite electrode material.The microstructure,phase structure,and electrochemical properties of the electrode ma-terial were characterized by SEM,XRD,and electrochemical workstation.The results show that the ZnCo2O4@CoWO4 electrode material exhibits a rod-like microstructure,with CoWO4 nanosheets tightly wrap-ping the surface of ZnCo2O4 nanoneedles.Meanwhile,the electrochemical properties of ZnCo2O4@CoWO4 electrode material are significantly improved on the basis of the monomer.Additionally,ZnCo2O4@CoWO4 composite electrode material has a high specific capacity and an enhanced charge-discharge cycle perfor-mance,effectively addressing the problems of poor conductivity and cycle stability caused by the volume expansion of momoner ZnCo2O4 material.

electrode materialZnCo2O4CoWO4nanocompositehydrothermal synthesis methodelectro-chemical property

徐嵩林、李佳、周仲鸿、崔士涛、马小雪、田月、相珺、赵荣达

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辽宁工业大学材料科学与工程学院,辽宁锦州 121001

电极材料 钴酸锌 钨酸钴 纳米复合材料 水热合成法 电化学性能

辽宁省自然科学基金博士科研启动基金辽宁省教育厅科学研究经费项目辽宁省教育厅科学研究经费项目国家级大学生创新创业训练计划

2022-BS-310LJKZ0612LJKMZ20220959202110154015

2024

稀有金属与硬质合金
中国有色金属学会,长沙有色冶金设计研究院有限公司

稀有金属与硬质合金

北大核心
影响因子:0.32
ISSN:1004-0536
年,卷(期):2024.52(2)
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