The design and synthesis of novel microporous materials have received tremendous attention in both CO 2 storage and sequestration (CSS) and electrochemical energy storage (EES). We report molecular design and synthesis of conjugated microporous polycarbazole networks as new precursors for nitrogen-enriched porous carbons. As-prepared porous carbons exhibit a high nitrogen content (6.1 wt %), ultramicropore size (0.7–1 nm), and large surface area (1280 m 2 g –1 ). As a result, these novel nitrogen-enriched carbons show highly efficient and reversible CO 2 capture (can store 20.4 wt % at 1 bar and 11.1 wt % at 0.15 bar and at 273 K, while maintaining 100% CO 2 uptake capacity after five cycles). Moreover, they can be applied as electrodes and enable high-performance EES devices with a fast charge/discharge rate (8 s), high electrochemical capacity (558 F g –1 ), and good cycle ability (retain 95% capacity after 1000 cycles).
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Wang et al. (2017) studied this question.