Nanofibrous and Graphene-Templated Conjugated MicroporousPolymer Materials for Flexible Chemosensors and Supercapacitors.

Conjugatedmicroporous polymers (CMPs) are usually obtained asamorphous or semicrystalline powders. Their insolubility and nonprocessabilityare considered as key bottlenecks that impede CMP applications. Inthis study, light-emitting, nanofibrous films were fabricated by electrospinningCMP/poly(lactic acid) (PLA) mixtures. The resulting nanofibrous filmsshow a high flexibility combined with high porosity and surface-area-to-volumeratios. The CMP-based nanofibrous films have been used as sensitivesensors in the detection of nitroaromatic and benzoquinone vaporsas well as oxidizing metal ions. Moreover, 4-iodophenyl-substitutedgraphene sheets were used as templates for growing CMP/graphene sandwiches.The graphene-based CMP (G-CMP) sandwiches are characterized by highsurface areas and aspect ratios. Furthermore, hierarchically poroustwo-dimensional carbon nanosheets were obtained by pyrolysis of thesecarbon-rich G-CMP hybrids. The resulting carbon nanomaterials showexcellent supercapacitor behavior with a 48% increased capacitanceif compared to porous carbons without the graphene template. [ABSTRACT FROM AUTHOR]