https://scholars.lib.ntu.edu.tw/handle/123456789/581567
標題: | High-Performance Supercapacitor Electrodes Prepared from Dispersions of Tetrabenzonaphthalene-Based Conjugated Microporous Polymers and Carbon Nanotubes | 作者: | Samy M.M Mohamed M.G El-Mahdy A.F.M Mansoure T.H Wu K.C.-W Kuo S.-W. KEVIN CHIA-WEN WU |
關鍵字: | Capacitance; Conjugated polymers; Microporosity; Nanocomposites; Nanotubes; Supercapacitor; Thermodynamic stability; Capacitance retention; Conjugated microporous polymers; Crystallinities; Electrochemical measurements; High surface area; Single-walled carbon nanotube (SWCNTs); Supercapacitor electrodes; Tetraphenylethylene; Single-walled carbon nanotubes (SWCN) | 公開日期: | 2021 | 來源出版物: | ACS Applied Materials and Interfaces | 摘要: | 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 m2 g-1) and thermal stability (Td10 = 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-1) at a current density of 0.5 A g-1 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. ? 2021 American Chemical Society. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85106371164&doi=10.1021%2facsami.1c05720&partnerID=40&md5=7ba74edf76c68c178d5a0582fb298272 https://scholars.lib.ntu.edu.tw/handle/123456789/581567 |
ISSN: | 19448244 | DOI: | 10.1021/acsami.1c05720 |
顯示於: | 化學工程學系 |
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