Conjugated microporous polymers containing ferrocene units for high carbon dioxide uptake and energy storage

In this study, we employed facile aminative cyclizations (Chichibabin pyridine reactions) of 1,1'-diacetylferrocene (AFC) with aryl aldehydes to prepare conjugated microporous polymers (CMPs) containing ferrocene moieties, for supercapacitor applications. The chemical structure of these AFC-CMPs frameworks was proved by using FTIR and solid C-13 NMR spectroscopies. All these AFC-CMPs featured outstanding thermal stability with decomposition temperature (T-d10) ranging from 309 to 337 degrees C and also these AFC-CMPs possess an amorphous structure with BET values in the range 72-341 m(2) g(-1). Among our tested systems, the BP-FC-CMP electrode achieved the highest specific capacitance of 608 F g(-1) at a 0.5 A g(-1) and the highest capacity retention of 97.47% after 2000 cycles and good CO2 ability uptake. This behavior arose from its high porosity facilitating redox reactions with faster kinetics. These novel metal-free CMPs have promise for application in secondary energy devices.

Automated summary

In this study, conjugated microporous polymers containing ferrocene moieties were prepared for supercapacitor applications using facile aminative cyclizations. These polymers exhibited outstanding thermal stability and high porosity, enabling faster redox reactions.