In this study we synthesized the triazine-based two-dimensional covalent organic frameworks (COFs) TPTP-COF and TPDA-COF through Schiff base (imine) condensations of 2,4,6-tris(4-formylphenyl)-1,3,5-triazine (TPT-3CHO) with 2,4,6-tris(4-aminophenyl)triazine (TPT-3NH₂) and diaminoanthraquinone (DAAQ), respectively. Moreover, we used carbon nanotube fibers (f-CNFs) as a template to synthesize TPTP-COF@f-CNF and TPDA-COF@f-CNF nanocomposite materials. X-ray diffraction image analysis revealed that our two COF materials possessed hexagonal crystal structures, with the crystallinity of TPTP-COF being much higher than that of TPDA-COF. Through simulations using Material Studio software, we determined an AA stacking structure for TPTP-COF and an AB stacking structure for TPDA-COF. These COF materials had high specific surface areas, charge transfer capability, and high redox properties, making them suitable for use in supercapacitor applications. TPTP-COF– and TPDA-COF–based electrodes provided specific capacitances of 577.4 and 640.4 F g⁻¹, respectively, at a scan rate of 5 mV s⁻¹. The specific capacitance of the TPTP-COF@f-CNF and TPDA-COF@f-CNF electrodes decreased upon increasing the f-CNF content. The maximum specific capacitances of TPTP-COF– and TPDA-COF–based symmetric supercapacitor devices were 56.4 and 70.6 F g⁻¹, respectively. The TPTP-COF– and TPDA-COF–based devices both exhibited good electrochemical stability, preserving 78.60 and 81.54%, respectively, of their initial capacitances after 10,000 cycles. The energy density and power density of the TPDA-COF–based device were slightly better than those of the TPTP-COF–based device.

在这项研究中，我们通过 2,4,6-三（4-甲酰苯基）-1,3 的席夫碱（亚胺）缩合合成了基于三嗪的二维共价有机框架（COF）TPTP-COF 和 TPDA-COF， 5-三嗪 (TPT-3CHO) 与 2,4,6-三(4-氨基苯基)三嗪 (TPT-3NH ₂ ) 和二氨基蒽醌 (DAAQ)，分别。此外，我们使用碳纳米管纤维（f -CNFs）作为模板合成了 TPTP-COF @f -CNF 和 TPDA-COF @f-CNF纳米复合材料。X射线衍射图像分析表明，我们的两种COF材料具有六方晶体结构，TPTP-COF的结晶度远高于TPDA-COF。通过使用 Material Studio 软件进行模拟，我们确定了 TPTP-COF 的 AA 堆叠结构和 TPDA-COF 的 AB 堆叠结构。这些 COF 材料具有高比表面积、电荷转移能力和高氧化还原性能，使其适用于超级电容器应用。^{基于 TPTP-COF 和 TPDA-COF 的电极在 5 mV s -1}的扫描速率下分别提供了 577.4 和 640.4 F g ^-1的比电容。TPTP-COF@ f -CNF 和 TPDA-COF@ f的比电容-CNF 电极随着f -CNF 含量的增加而减少。基于 TPTP-COF– 和 TPDA-COF 的对称超级电容器器件的最大比电容分别为 56.4 和 70.6 F g ^-1。基于 TPTP-COF 和 TPDA-COF 的器件均表现出良好的电化学稳定性，在 10,000 次循环后分别保持其初始电容的 78.60% 和 81.54%。基于TPDA-COF的器件的能量密度和功率密度略优于基于TPTP-COF的器件。