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Significance Statement
It is related that a novel way was developed to insert and draw out the desired material into the inside of hexagonal boron nitride nanoscrolls and also their inner-tube diameter can be controlled by adjusting the diameter of LCA fiber. By carefully selecting the Lewis base and the reaction conditions, the approach might be potentially useful for the preparation of complex of hexagonal boron nitride nanoscrolls and desired materials. The final goal of these efforts is the detailed evaluation of their advanced properties required for future high-performance composites, nano-, bio-, electromechanical, and medical devices.
Figure legend
Schematic processes for scrolling hexagonal boron nitride sheets by the addition of LCA
Journal Reference
Hwang da Y, Suh DH.
Nanoscale. 2014 ;6(11):5686-90.
Division of Chemical Engineering, College of Engineering, Hanyang University, Seoul, 133-791, Republic of Korea. [email protected].
Abstract
Unlike nanoscrolls of 2D graphene, those of 2D h-BN have not been demonstrated, except for only a few experimental reports. Nanoscrolls of h-BN with high yields and reproducibility are first synthesized by a simple solution process. Inner-tube diameters of BNSs including LCAs, N-(2-aminoethyl)-3{Alpha}-hydroxy-5{Beta}-cholan-24-amide, a bile acid derivative and self-assembling material, can be controlled by adjusting the diameter of the LCA fiber which is grown by self-assembly. TEM and SEM images show that BNSs have a tube-like morphology and the inner-tube diameter of BNSs can be controlled in the range from 20 to 60 nm for a smaller diameter, up to 300 nm for a larger diameter by LCA fiber growth inside the BNSs. Finally, open cylindrical BNSs with hollow cores were obtained by dissolving LCAs inside BNSs.
