O,N-Codoped 3D graphene hollow sphere derived from metal–organic frameworks as oxygen reduction reaction electrocatalysts for Zn-air batteries
Ruili Song, Xiaoting Cao, Jiang Xu, Xiaoshuang Zhou, Xi Wang, Ningyi Yuan, Jianning Ding
Abstract
Metal-free 3D hollow spherical O and N dual-doped graphene framework composites (O,N-graphene) have an average diameter of about 4 μm and specific surface area as high as 1801.4 m<sup>2</sup> g<sup>−1</sup>.
Topics & Concepts
Oxygen reduction reactionGrapheneMaterials scienceOxygen reductionMetal-organic frameworkMetalChemical engineeringReduction (mathematics)Oxygen evolutionNanotechnologyOxygenChemistryElectrodeMetallurgyElectrochemistryOrganic chemistryPhysical chemistryEngineeringAdsorptionGeometryMathematicsElectrocatalysts for Energy ConversionAdvanced battery technologies researchSupercapacitor Materials and Fabrication