| 琥珀酸构建具有超级电容器性能的混合金属有机骨架 |
| Mixed Metal-Organic Frameworks with Supercapacitor Performance Constructed by Succinic Acid |
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| 摘要: 采用简单的溶剂热法合成了混合金属有机骨架材料（MOF （Ni，Co）），然后通过X射线衍射、FT-IR、扫描电子显微镜、X射线光电子能谱和N2吸附-脱附对制备的材料进行了表征，并进一步研究了其作为超级电容器电极材料的性能。结果表明，具有独特的纳米花状结构的MOF （Ni1.2Co0.8）可以提供更多的电活性位点，从而具有优异的电化学性能，在1 A·g-1时的比电容为850 F·g-1。同时本研究工作说明MOF （Ni）电极材料在掺杂适量钴元素后，可增强电极内部电子/离子转移，降低活性物质和电解液之间的接触电阻，提高导电性，增强电化学性能。 |
| 关键词: 超级电容器 溶剂热法 金属有机骨架 纳米花 |
| 基金项目: 福建省自然科学基金（No.2020J01803）、福建省特色生物化工材料重点实验室（No.FJKL_FBCM202104）和宁德师范学院创新团队项目（No.2021T07）资助。 |
| Abstract: A mixed metal-organic framework (MOF(Ni, Co)) was synthesized through a simple one-pot solvothermal method, and was characterized through X-ray diffraction, FT-IR, scanning electron microscope, X-ray photoelectron spectroscopy, and N2 adsorption-desorption. The performance of the samples as supercapacitor electrode materials was further studied for the first time. The unique nano-flower-like structure of MOF(Ni1.2Co0.8) provides more electroactive sites and a shorter pathway for electron transfer and electrolyte diffusion, resulting in an excellent electrochemical performance with a high specific capacitance of 850 F·g-1 at 1 A·g-1. At the same time, this work shows that the MOF(Ni) electrode material doped with an appropriate amount of Co can facilitate the electron/ion transportation of the electrode, reduce the contact resistance between active material and electrolyte, increase the electrical conductivity, and enhance the electrochemical performance. |
| Keywords: supercapacitor solvothermal method metal-organic frameworks nano-flower |
| 投稿时间：2021-10-27 修订日期：2022-03-09 |
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| 牛百通,冯延辉,廖慧玲,郭鸿旭,应少明.琥珀酸构建具有超级电容器性能的混合金属有机骨架[J].无机化学学报,2022,38(5):951-958. |
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