General Synthesis of Large Inorganic Nanosheets via 2D Confined Assembly of Nanoparticles.

ABSTRACT: Assembling nanoparticles to spatially well-defined functional nanomaterials and sophisticated architectures has been an intriguing goal for scientists. However, maintaining a long-range order of assembly to create macrostructures remains a challenge, owing to the reliance on purely interparticle interactions. Here, we present a general strategy to synthesize a class of inorganic nanosheets via a bottom-up directional freezing method. We demonstrate that, by confining a homogeneously dispersed metal-cyano colloidal suspension at the ice-water interface, followed by removal of ice crystals, large nanosheets with a lateral scale of up to several millimeters can be produced. The formation of millimeter-sized nanosheets is attributed to balanced electrostatic forces between dispersed nanopartic

SUBMITTER: Fang Z 

PROVIDER: S-EPMC9136968 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature