Controllable synthesis of single-layer graphene over cobalt nanoparticles and insight into active sites for efficient oxygen evolution
Gisang Park, Cheol-Hwan Shin, Joonhee Kang, Kug‐Seung Lee, Chunfei Zhang, Byeonghwa Lim, CheolGi Kim, Jong‐Sung Yu
Abstract
Single-layer graphene-coated cobalt core–shell particles (Co@SG and Co@N-SG) are successfully synthesized by using a SiO<sub>2</sub> matrix as a radical sieve. Interestingly, the graphene shell possesses varying defects, resulting in key OER active sites.
Topics & Concepts
GrapheneCobaltMaterials scienceNanoparticleOxygen evolutionNanotechnologyChemical engineeringMolecular sieveChemistryCatalysisPhysical chemistryMetallurgyElectrodeOrganic chemistryElectrochemistryEngineeringElectrocatalysts for Energy ConversionAdvanced Photocatalysis TechniquesAdvanced battery technologies research