Samy Maha Mohamed, Mohamed Mohamed Gamal, El-Mahdy Ahmed F M, Mansoure Tharwat Hassan, Wu Kevin C-W, Kuo Shiao-Wei
Department of Materials and Optoelectronic Science, Center of Crystal Research, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan.
Chemistry Department, Faculty of Science, Assiut University, Assiut 71516, Egypt.
ACS Appl Mater Interfaces. 2021 Nov 10;13(44):51906-51916. doi: 10.1021/acsami.1c05720. Epub 2021 May 7.
In this study, we prepared a series of conjugated microporous polymers (CMPs) through Sonogashira-Hagihara cross-couplings of a tetrabenzonaphthalene (TBN) monomer with pyrene (Py), tetraphenylethylene (TPE), and carbazole (Car) units and examined their chemical structures, thermal stabilities, morphologies, crystallinities, and porosities. TBN-TPE-CMP possessed a high surface area (1150 m g) and thermal stability ( = 505 °C; char yield = 68 wt %) superior to those of TBN-Py-CMP and TBN-Car-CMP. To improve the conductivity of the TBN-CMP materials, we blended them with highly conductive single-walled carbon nanotubes (SWCNTs). Electrochemical measurements revealed that the TBN-Py-CMP/SWCNT nanocomposite had high capacitance (430 F g) at a current density of 0.5 A g and outstanding capacitance retention (99.18%) over 2000 cycles; these characteristics were superior to those of the TBN-TPE-CMP/SWCNT and TBN-Car-CMP/SWCNT nanocomposites.
在本研究中，我们通过四苯并萘（TBN）单体与芘（Py）、四苯乙烯（TPE）和咔唑（Car）单元的Sonogashira-Hagihara交叉偶联反应制备了一系列共轭微孔聚合物（CMPs），并研究了它们的化学结构、热稳定性、形态、结晶度和孔隙率。TBN-TPE-CMP具有较高的比表面积（1150 m²/g）和热稳定性（T₅₀₅ = 505 °C；残炭产率 = 68 wt%），优于TBN-Py-CMP和TBN-Car-CMP。为了提高TBN-CMP材料的导电性，我们将它们与高导电性的单壁碳纳米管（SWCNTs）混合。电化学测量结果表明，TBN-Py-CMP/SWCNT纳米复合材料在电流密度为0.5 A/g时具有高电容（430 F/g），并且在2000次循环后具有出色的电容保持率（99.18%）；这些特性优于TBN-TPE-CMP/SWCNT和TBN-Car-CMP/SWCNT纳米复合材料。
