基于四苯乙烯的共轭高交联聚合物的中孔/微孔碳在高性能 CO 捕获和超级电容器中的应用

Meso/Microporous Carbons from Conjugated Hyper-Crosslinked Polymers Based on Tetraphenylethene for High-Performance CO Capture and Supercapacitor.

机构信息

Department of Materials and Optoelectronic Science, Center of Crystal Research, National Sun Yat-sen University, Kaohsiung 804, Taiwan.

Chemistry Department, Faculty of Science, Assiut University, Assiut 71516, Egypt.

出版信息

Molecules. 2021 Jan 31;26(3):738. doi: 10.3390/molecules26030738.

In this study, we successfully synthesized two types of meso/microporous carbon materials through the carbonization and potassium hydroxide (KOH) activation for two different kinds of hyper-crosslinked polymers of TPE-CPOP1 and TPE-CPOP2, which were synthesized by using Friedel-Crafts reaction of tetraphenylethene (TPE) monomer with or without cyanuric chloride in the presence of AlCl as a catalyst. The resultant porous carbon materials exhibited the high specific area (up to 1100 m g), total pore volume, good thermal stability, and amorphous character based on thermogravimetric (TGA), N adsoprtion/desorption, and powder X-ray diffraction (PXRD) analyses. The as-prepared TPE-CPOP1 after thermal treatment at 800 °C (TPE-CPOP1-800) displayed excellent CO uptake performance (1.74 mmol g at 298 K and 3.19 mmol g at 273 K). Furthermore, this material possesses a high specific capacitance of 453 F g at 5 mV s comparable to others porous carbon materials with excellent columbic efficiencies for 10,000 cycle at 20 A g.

在这项研究中，我们通过碳化和氢氧化钾（KOH）活化成功合成了两种介孔/微孔碳材料，这两种材料是通过使用四苯乙烯（TPE）单体与三氯氰胺在 AlCl 存在下的傅克反应，合成了两种不同的超交联聚合物 TPE-CPOP1 和 TPE-CPOP2 得到的。所得多孔碳材料具有高比表面积（高达 1100 m²/g）、总孔体积、良好的热稳定性和无定形特征，基于热重（TGA）、N 吸附/解吸和粉末 X 射线衍射（PXRD）分析。在 800°C 下热处理后的 TPE-CPOP1（TPE-CPOP1-800）表现出优异的 CO 吸收性能（在 298 K 时为 1.74 mmol g，在 273 K 时为 3.19 mmol g）。此外，该材料具有 453 F/g 的高比电容，在 5 mV/s 时与其他多孔碳材料相当，在 20 A/g 时具有 10000 次循环的优异库仑效率。