We presented the immobilization of ionic liquids on the channel walls of COFs using a post-synthetic strategy. The ionic [Et4NBr]50%-Py-COF afforded a high CO2 adsorption capacity of 164.6 mg g(-1) (1 bar, 273 K) and was developed as an effective heterogeneous catalyst for the transformation of CO2 into value-added formamides under ambient conditions.

Organic solvent-exfoliated MoS2 nanosheets significantly improved the thermoelectric performance of flexible PEDOT:PSS thin films via the use of direct vacuum filtration.

Organic semiconductors have great potential as flexible thermoelectric materials. A fluorene-based covalent organic framework (FL-COF-1) was designed with the aim of creating an enhanced π-π interaction among the crystalline backbones. By the introduction of fluorene units into the frameworks, the FL-COF-1 had high thermal stability with a BET surface area over 1300 m g. The open frameworks were favorable for doping with iodine and followed with the improved charge carrier mobility. The compressed pellet of I@FL-COF-1 exhibited a high Seebeck coefficient of 2450 μV K and power factor of 0.063 μW m K at room temperature, giving the first example of COFs' potential application as thermoelectric materials.