| 二维Ni-Salphen基共价有机骨架的制备及电容性能 |
| Two-dimensional covalent organic frameworks based on Ni-Salphen: Preparation and capacitive performance |
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| 摘要: 利用2，3，6，7，10，11-六氨基三苯六盐酸盐（HATP）和4，6-二羟基-5-甲基间苯二甲醛（DMDB）为构筑基元，构筑了二维Ni-Salphen基共价有机骨架（COFs）电极材料（Ni-Salphen-COF）。通过一系列方法对Ni-Salphen-COF的结构、形貌和电化学性能进行了表征和测试。三电极系统测试结果表明，Ni-Salphen-COF具有优异的电化学性能，在1 A·g-1时，比电容达到531 F·g-1，并显示良好的循环稳定性（10 000次循环后电容保持率为89%）。同时，二电极系统测试结果显示，在1 A·g-1时，Ni-Salphen-COF//AC （AC为活性炭）比电容达176 F·g-1；在功率密度为900 W·kg-1时，最大能量密度为55 Wh·kg-1。良好的性能可能归因于Ni-Salphen结构提高了电极材料的电导率、氧化还原活性和电荷转移能力。 |
| 关键词: 共价有机骨架 超级电容器 Ni-Salphen 二维 |
| 基金项目: 安徽高校优秀拔尖人才培育项目（No.gxyqzD2021138）和安徽高校自然科学研究重点项目（No.KJ2015A393，KJ2020A0772）资助。 |
| Abstract: To develop covalent organic frameworks supercapacitors electrode materials, functional designs is important practical significance to enhance electrochemical performance. Two-dimensional covalent organic frameworks (COFs) based on Ni-Salphen (Ni-Salphen-COF) has been constructed by the reaction of 2,3,6,7,10,11-hexaaminotri-phenylene (HATP) and 4,6-dihydroxy-5-methyl-1,3-diformyl benzene (DMDB). Structures, morphology, and electro-chemical properties of the Ni-Salphen-COF were characterized via a series of methods. The three-electrode test results suggest that Ni-Salphen-COF showed excellent specific capacitance of 531 F·g-1 and good cycle stability (capacity retention of 89% after 10 000 cycles) at the current density of 1 A·g-1. Meanwhile, Ni-Salphen-COF//AC (AC:activated carbon) in the two-electrode system displayed the specific capacitance of 176 F·g-1 at 1 A·g-1, and the highest energy density was up to 55 Wh·kg-1 at a power density of 900 W·kg-1. Compared to Salphen-COF with-out Ni, Ni-Salphen-COF showed a high specific capacitance. The electrochemical performance could be attributed to Ni-Salphen units, increasing in electrical conductivity, redox-active, and charge transfer activity. |
| Keywords: covalent organic frameworks supercapacitors Ni-Salphen two-dimension |
| 投稿时间：2023-03-22 修订日期：2023-06-08 |
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| 李涛,王丽,夏友付,王利利,沈悦.二维Ni-Salphen基共价有机骨架的制备及电容性能[J].无机化学学报,2023,39(9):1691-1698. |
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| Support information: 相关附件： 230093_Supporting_Information.docx |
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