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Design Hybrid Porous Organic/Inorganic Polymers Containing Polyhedral Oligomeric Silsesquioxane/Pyrene/Anthracene Moieties as a High-Performance Electrode for Supercapacitor.

Moshin EjazMaha Mohammed SamyYunsheng YeShiao-Wei KuoMohamed Gamal Mohamed
Published in: International journal of molecular sciences (2023)
We synthesized two hybrid organic-inorganic porous polymers (HPP) through the Heck reaction of 9,10 dibromoanthracene (A-Br 2 ) or 1,3,6,8-tetrabromopyrene (P-Br 4 )/A-Br 2 as co-monomers with octavinylsilsesquioxane (OVS), in order to afford OVS-A HPP and OVS-P-A HPP, respectively. The chemical structures of these two hybrid porous polymers were validated through FTIR and solid-state 13 C and 29 Si NMR spectroscopy. The thermal stability and porosity of these materials were measured by TGA and N 2 adsorption/desorption analyses, demonstrating that OVS-A HPP has higher thermal stability (T d10 : 579 °C) and surface area (433 m 2 g -1 ) than OVS-P-A HPP (T d10 : 377 °C and 98 m 2 g -1 ) due to its higher cross-linking density. Furthermore, the electrochemical analysis showed that OVS-P-A HPP has a higher specific capacitance (177 F g -1 at 0.5 A F g -1 ) when compared to OVS-A HPP (120 F g -1 at 0.5 A F g -1 ). The electron-rich phenyl rings and Faradaic reaction between the π-conjugated network and anthracene moiety may be attributed to their excellent electrochemical performance of OVS-P-A HPP.
Keyphrases
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  • room temperature
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  • data analysis