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It is highly desirable to develop electroactive organic materials and their derivatives as green alternatives of cathodes for sustainable and cost-effective lithium-ion batteries (LIBs) in energy storage fields. Herein, compact two-dimensional coupled graphene and porous polyaryltriazine-derived frameworks with tailormade pore structures are fabricated by using various molecular building blocks under ionothermal conditions. The porous nanosheets display nanoscale thickness, high specific surface area, and strong coupling of electroactive polyaryltriazine-derived frameworks with graphene. All these features make it possible to efficiently depress the dissolution of redox moieties in electrolytes and to boost the electrical conductivity of whole electrode. When employed as a cathode in LIBs, the two-dimensional porous nanosheets exhibit outstanding cycle stability of 395 mAh g−1 at 5 A g−1 for more than 5100 cycles and excellent rate capability of 135 mAh g−1 at a high current density of 15 A g−1. [ABSTRACT FROM AUTHOR]

Partikel und Blätter: Polyanilin dient als Brücke zur Kupplung von Metalloxiden und ‐ hydroxiden mit Graphenschichten. Eine Hydrothermalbehandlung überführt die gekuppelten Hybride in N ‐ dotierte Kohlenstoffnanoblätter, in denen Metallpartikel kontrollierter Größe eingeschlossen sind. Ihre Struktur verleiht diesen 2D ‐ Nanohybriden vielversprechende elektrochemische Eigenschaften in Superkondensatoren und in der Sauerstoffreduktion. [ABSTRACT FROM AUTHOR]

The article discusses a study which proposes a synthetic approach in the production of two-dimensional (2D) conjugated microporous polymers based on graphene. It mentions the methods used for the synthesis of the conjugate that involved the reduction of a graphene oxide sheet (GO) with hydrazine hydrate (RGO), dispersion of bromo-functionalized RGO, and scanning electron microscopy (SEM). It adds that the synthesis method is expected to provide the opportunity to create 2D porous polymers.