A bowl-shaped nitrogen-doped nanographene composed of a pyrrolo[3,2-b]pyrrole core substituted with six arene rings circularly bonded one another undergoes bowl-to-bowl inversion low barrier. This resembles that an umbrella flipped by the strong wind. The transition state is not planar, but possesses rather twisted, S-shaped conformation Ci symmetry. bowl-inversion mechanism follows quadruple-w...

Abstract This paper aims to study the mechanical properties of hybrid polymer composites and addition primary secondary fillers nano-aluminum oxide nanographene Kenaf epoxy composites. The vacuum bagging method was used fabricate advantage using is reduce blowholes. weight ratio fiber 50%–60%, matrix 40%, 0%–6%, 0%–3% considered. Mechanical like Tensile strength, Young’s modulus elongation, fle...

The solid-phase pyrolysis method was used to synthesize carbon microspheres, consisting of clusters few-layer nanographene and amorphous carbon. Powders metal-free phthalocyanine polyethylene served as precursors the synthesized microspheres. products samples SPc(700) SPc(900) contained 4 1 atom % nitrogen, respectively, replacing in graphene lattice pyrrolic pyridinic coordination. There are n...