| 蒋子超,彭海宁,陈奇志,马凯悦,刘慧君.原位合成NiCo-MOF/MXene材料的电容性能研究[J].南华大学学报(自然科学版),2024,(1):72~79, 96.[JIANG Zichao,PENG Haining,CHEN Qizhi,MA Kaiyue,LIU Huijun.In-situ Synthesis of NiCo-MOF/MXene Material and its Capacity Properties Research[J].Journal of University of South China(Science and Technology),2024,(1):72~79, 96.] |
| 原位合成NiCo-MOF/MXene材料的电容性能研究 |
| In-situ Synthesis of NiCo-MOF/MXene Material and its Capacity Properties Research |
| 投稿时间：2023-11-20 |
| DOI： |
| 中文关键词: 超级电容器 镍钴有机框架材料 MXene 原位合成 |
| 英文关键词:supercapacitor NiCo-MOF MXene in-situ synthesis |
| 基金项目:国家自然科学基金项目(11375084);衡阳市科技创新项目(202250045319) |
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| 中文摘要: |
| 在不使用任何黏合剂的情况下,将镍钴双金属有机框架材料(NiCo-metal organic framework,NiCo-MOF)和MXene材料附着在泡沫镍(nickel foam,NF)表面,合成了高性能电极材料,这两种材料结合生长出的层状结构有利于离子的快速传导,减少了活性材料的无效堆砌,同时表现出理想的电化学性能。当投入原料的镍钴物质的量之比为1∶2时,制得的电极材料在5 mA/cm2的电流密度下表现出4.96 C/cm2的优良比电容。得到的电极与活性炭(activated carbon,AC)负极组装成不对称超级电容器后,在10.09 W/cm2的功率密度下,得到的超级电容器的能量密度可达到1 530 mWh/cm2,并且当功率密度升高到102.29 W/cm2时,能量密度仍可以保持在770 mWh/cm2。在15 mA/cm2的电流密度下,经过5 000次充放电循环后,不对称超级电容器的电容保持率为98.52%。 |
| 英文摘要: |
| By attaching NiCo bimetallic Metal-organic frameworks(NiCo-MOF) and MXene onto the surface of the Nickel foam(NF), high-quality electrode has been synthesized without using any adhesive. The combination of these two materials grows a layer structure, which can fasten the ion exchange and reduce invalid stacking of the active material, and at the same time exhibits ideal electrochemical performance. When the mole ratio at Ni∶Co=1∶2, the obtained SCs shows best performance with 4.96 C/cm2 at the current density of 5 mA/cm2. After assembled with active carbon anode, the energy density of the obtained asymmetric supercapacitor can reach to 1 530 mWh/cm2 under the power density of 10.09 W/cm2 and kept 770 mWh/cm2 when the power density reached to 102.29 W/cm2, also with 98.52% capacitance retention after 5 000 cycles under the current density of 15 mA/cm2. |
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