Structure-tunable supraparticle assemblies of hollow cupric oxide sheathed with nanographenes.

ABSTRACT: Self-assembled supraparticles (SPs), a secondary structure of clustered nanoparticles, have attracted considerable interest owing to their highly tunable structure, composition, and morphology from their primary nanoparticle constituents. In this study, hierarchically assembled hollow Cu₂O SPs were prepared using a cationic polyelectrolyte poly(diallyl dimethylammonium chloride) (PDDA) during the formation of Cu₂O nanoparticles. The concentration-dependent structural transformation of PDDA from linear chains to assembled droplets plays a crucial role in forming a hollow colloidal template, affording the self-assembly of Cu₂O nanoparticles as a secondary surfactant. The use of the positively charged PDDA also affords negatively charged nanoscale graphene oxi

SUBMITTER: Gu M 

PROVIDER: S-EPMC9419484 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature