Porous organic/inorganic polymers based on double-decker silsesquioxane for high-performance energy storage

Two porous organic/inorganic microporous polymers (TPE-DDSQ POIP and Car-DDSQ POIP) were prepared through the Sonogashira-Hagihara coupling reaction of DDSQBr with 1,1,2,2-tetrakis(4-ethynylphenyl)ethene (TPE-T), and 3,3´,6,6´-tetraethynyl-9,9´-bicarbazole (Car-T); respectively. The chemical structu...

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Bibliographic Details
Published in:Journal of polymer research 2021-06, Vol.28 (6), Article 219
Main Authors: Mohamed, Mohamed Gamal, Chen, Wei-Cheng, EL-Mahdy, Ahmed F. M., Kuo, Shiao-Wei
Format: Article
Language:English
Subjects:
Capacitance
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Energy storage
Ethylene
Industrial Chemistry/Chemical Engineering
Morphology
Original Paper
Polymer Sciences
Polymers
Thermal degradation
Thermal stability
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Summary:Two porous organic/inorganic microporous polymers (TPE-DDSQ POIP and Car-DDSQ POIP) were prepared through the Sonogashira-Hagihara coupling reaction of DDSQBr with 1,1,2,2-tetrakis(4-ethynylphenyl)ethene (TPE-T), and 3,3´,6,6´-tetraethynyl-9,9´-bicarbazole (Car-T); respectively. The chemical structure and properties of these two materials including thermal stability, porosity, crystallinity, and morphology were characterized in detail by using various instruments. Based on TGA analyses, Car-DDSQ POIP exhibited high thermal degradation temperature up to 439 °C and char yield up to 77.4 wt.% because inorganic DDSQ unit could enhance the thermal stability as expected. The electrochemical results revealed that TPE-DDSQ POIP and Car-DDSQ POIP showed specific capacitance of 22 and 23 F g −1 at 1 A g −1 ; respectively in a three-electrode with KOH solution (6 M) as electrolyte and capacitance retention at about 93% after 2000 galvanostatic charge–discharge cycles.
ISSN:1022-9760
1572-8935
DOI:10.1007/s10965-021-02579-x