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Constructing conjugated microporous polymers containing triphenylamine moieties for high-performance capacitive energy storage

ملخص البحث

In this research we developed two triphenylamine (TPA)-linked conjugated microporous polymers (CMPs), TPA-TAB and TPA-TBN, through Suzuki couplings of tris(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)amine (TPA-BO) with the aryl bromides tetrakis(4-bromophenyl)benzidine (TAB-Br4) and 2,7,10,15-tetrabromotetrabenzonaphthalene (TBN-Br4), respectively. These CMPs, which have substantial surface surfaces and outstanding thermal stability, could be employed as electrode materials in supercapacitor (SC) devices. In a three-electrode SC, the TPA-TAB CMP exhibited ultrahigh specific capacitance (684 F g−1 at 0.5 A g−1) and long-term stability, with a capacitance retention of 99.5% after 5000 cycles (at 10 A g−1). Moreover, a two-electrode symmetric SC incorporating TPA-TAB CMP presented a capacitance of 117 F g−1 and a high retention of 98% when subjected to 5000 cycles at 10 A g−1. This exceptional performance resulted from was achieved through the use of redox-active TPA units and a large BET surface area (490 m2 g−1). Accordingly, such TPA-CMPs appear to have promise for use in charge and energy storage applications.

مؤلف البحث
Maha Mohamed Samy, Mohamed Gamal Mohamed, Santosh U. Sharma, Swetha V. Chaganti, Tharwat Hassan Mansoure, Jyh-Tsung Lee, Tao Chen, Shiao-Wei Kuo
تاريخ البحث
قسم البحث
مجلة البحث
Polymer
صفحات البحث
125541 - 125550
الناشر
ELSEVIER
عدد البحث
264
موقع البحث
https://www.sciencedirect.com/science/article/pii/S0032386122010291
سنة البحث
2022