Chen Yuanyuan,Xu Changlong,Chen Xiudong *,et al.Preparation and lithium storage performance of Co 3 O 4 nanometer hollow sphere electrode[J].Plating & Finishing,2023,(9):95-98.[doi:10.3969/j.issn.1001-3849.2023.09.015]
Co3O4纳米空心球电极的制备及其储锂性能
- Title:
- Preparation and lithium storage performance of Co 3 O 4 nanometer hollow sphere electrode
- Keywords:
- anode material ; lithium-ion batteries ; electrochemical properties ; metal organic frameworks
- 分类号:
- TQ317
- 文献标志码:
- A
- 摘要:
- 采用六水硝酸钴和顺丁烯二酸为原料，以水热法合成前体材料，在空气氛围下进行高温（ 600 ℃ 和 700 ℃ ）煅烧，得到 Co-Ma-600 和 Co-Ma-700 衍生材料。采用 SEM 和 TEM 考察衍生材料的形貌和尺寸，通过 XRD 研究其结构。将衍生材料 Co-Ma-600 和 Co-Ma-700 作为锂离子电池负极材料，并将其组装成原电池。电化学测试结果表明：钴基金属有机骨架衍生材料 Co-Ma-600 和 Co-Ma-700 均为 Co 3 O 4 ， Co-Ma-600 形成了较为稳定的空心纳米球结构。在 0.1 A·g -1 的电流密度下， Co-Ma-600 作为锂离子电池负极材料表现出良好的电化学性能，第一次循环可逆比容量达到 808.7 mAh·g -1 ，经过 100 次循环后可逆比容量达 863.2 mAh·g -1 ，与初始比容量相比略有升高。
- Abstract:
- ： The precursor materials were synthesized from cobalt nitrate hexahydrate and maleic acid via the hydrothermal method and calcined at high temperatures （ 600 ℃ and 700 ℃ ） in an air atmosphere to obtain Co-Ma-600 and Co-Ma-700 derivative materials. XRD and SEM/TEM were used to investigate the structure and morphology of the derived materials. Co-Ma-600 and Co-Ma-700 were used as anode materials for lithium-ion batteries and assembled into primary batteries. The results showed that the cobalt-based metal-organic frameworks of Co-Ma-600 and Co-Ma-700 were both Co 3 O 4 ， and Co-Ma-600 formed a relatively stable hollow nanosphere. At a current density of 0.1 A·g -1 ， Co-Ma-600 exhibited good electrochemical performance as a lithium-ion battery anode material ， with a reversible specific capacity of 808.7 mAh·g -1 in the first cycle. After 100 cycles ， the reversible specific capacity of Co-Ma-600 reached 863.2 mAh·g -1 ， slightly higher than the initial specific capacity.
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备注/Memo
收稿日期： 2022-10-04 修回日期： 2022-11-08 作者简介： 陈媛媛（ 2001 —），女，本科生，主要从事锂离子电池负极材料研究， email ： 2294269131@qq.com * 通信作者： 陈修栋（ 1989 —），男，博士，副教授， email ： chenxiudong_@126.com 基金项目： 国家自然科学基金（ 22065017 、 21864015 ）；江西省自然科学基金（ 20224BAB214019 、 20232BAB204024 ）；江西省教育厅科学基金（ GJJ180892 、 GJJ211801 ）；大学生创新创业计划项目（ 202111843004 、 202211843009 ）