Anisotropic Hexagonal Boron Nitride Nanomaterials: Synthesis and Applications

Abstract

The sections in this article are Introduction Synthesis of BN Nanotubes Introduction Arc Discharge Laser Ablation Carbon Nanotubes‐Substitution Reaction Chemical Vapor Deposition Solid–Gas Reaction Low‐Temperature Autoclaving Pore‐Template Arc‐Jet Plasma BNNT ‐Based Nano‐Objects Filled BNNT s Functionalized BNNT s Porous BN and BN Mesh Direct Pyrolyzing Borazinic Precursors Use of Mesoporous Molds Carbon Template‐Substitution Reaction BN Mono‐ or Few‐Layer Sheets Physical Properties of h ‐ BN Applications Pharmaceutical Table Lubricant Cosmetic Materials 10 BNNT s for Cancer Therapy and Diagnostics BNNT Composites Gas Adsorption Electrical Nanoinsulators Ultraviolet Lasers and LEDs BN as Support for Catalysts Concluding Remarks Acknowledgments

Synthesis, Functionalization, and Bioapplications of Two-Dimensional Boron Nitride Nanomaterials

“…While hBNs and rBNs are produced at ambient pressure and at high temperature, wBNs form hBNs under high pressure at room temperature. cBNs are prepared from hBNs under high pressure at high temperature (Han, 2010).…”

“…cBNs are also called white diamonds because of their high Young's modulus compared to diamonds. They are used to cut many industrial ferrous materials, and they do not react with the related alloys, as is the case with diamonds (Han, 2010).…”

How to Increase the h-BN Crystallinity of Microfilms and Self-Standing Nanosheets: A Review of the Different Strategies Using the PDCs Route

“…Hexagonal boron nitride (h-BN) is a famous non oxide ceramic known and appreciated for its numerous interesting properties, such as a high thermal conductivity, an excellent thermal chock resistance, a high resistance against oxidation (850˝C under air), a good chemical inertness [1,2], etc. Based on this non exhaustive list of important properties, it is easy to understand the key role of h-BN for real or potential applications.…”

The allotropic transformation of polycrystalline cubic boron nitride structures resulting from the thermal effects of pulsed laser ablation

“…While ablation temperatures in excess of 2600 K are likely to cause the c-BN to decompose into gaseous nitrogen and liquid boron [15], higher ablation temperatures greatly exceeding 4200 K would ensure the material removal process above the residual c-BN surface via the vaporisation of boron. In the BN rich regions, the likely presence of a-BN was found to predominate immediately below the ablated surface to depths exceeding 300 nm which is likely to be as a result of the phase transition of c-BN to a turbulent liquid phase or as a result of redeposition occurring as condensing boron reacts with residual nitrogen gas to form BN of sp 2 atomic bonding [15].…”