Shear-Assisted Production of Few-Layer Boron Nitride Nanosheets by Supercritical CO₂ Exfoliation and Its Use for Thermally Conductive Epoxy Composites.

ABSTRACT: Boron nitride nanosheets (BNNS) hold the similar two-dimensional structure as graphene and unique properties complementary to graphene, which makes it attractive in application ranging from electronics to energy storage. The exfoliation of boron nitride (BN) still remains challenge and hinders the applications of BNNS. In this work, the preparation of BNNS has been realized by a shear-assisted supercritical CO₂ exfoliation process, during which supercritical CO₂ intercalates and diffuses between boron nitride layers, and then the exfoliation of BN layers is obtained in the rapid depressurization process by overcoming the van der Waals forces. Our results indicate that the bulk boron nitride has been successfully exfoliated into thin nanosheets with an average 6 layers

SUBMITTER: Tian X 

PROVIDER: S-EPMC5736726 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature