BN nanotube was bent inside a transmission electron microscope. Its walls self-healed after release of pressure.[1]
Boron nitride nanotubes (BNNTs) are a polymorph of boron nitride. They were predicted in 1994[2] and experimentally discovered in 1995.[3] Structurally they are similar to carbon nanotubes, which are cylinders with sub-micrometer diameters and micrometer lengths, except that carbon atoms are alternately substituted by nitrogen and boron atoms. However, the properties of BN nanotubes are very different: whereas carbon nanotubes can be metallic or semiconducting depending on the rolling direction and radius, a BN nanotube is an electrical insulator with a bandgap of ~5.5 eV, basically independent of tube chirality and morphology.[4] In addition, a layered BN structure is much more thermally and chemically stable than a graphitic carbon structure.[5][6] BNNTs have unique physical and chemical properties, when compared to Carbon Nanotubes (CNTs) providing a very wide range of commercial and scientific applications.[7] Although BNNTs and CNTs share similar tensile strength properties of circa 100 times stronger than steel and 50 times stronger than industrial-grade carbon fibre,[8] BNNTs can withstand high temperatures of up to 900 °C.[9] as opposed to CNTs which remain stable up to temperatures of 400 °C,[10] and are also capable of absorbing radiation.[11] BNNTS are packed with physicochemical features including high hydrophobicity and considerable hydrogen storage capacity and they are being investigated for possible medical and biomedical applications, including gene delivery, drug delivery, neutron capture therapy, and more generally as biomaterials [12] BNNTs are also superior to CNTs in the way they bond to polymers giving rise to many new applications and composite materials.[11]
^Golberg, Dmitri; Costa, Pedro M. F. J.; Mitome, Masanori; Bando, Yoshio (2009). "Properties and engineering of individual inorganic nanotubes in a transmission electron microscope". Journal of Materials Chemistry. 19 (7): 909. doi:10.1039/B814607A.
^Rubio, A.; et al. (1994). "Theory of Graphitic Boron Nitride Nanotubes". Physical Review B. 49 (7): 5081–5084. Bibcode:1994PhRvB..49.5081R. doi:10.1103/PhysRevB.49.5081. PMID 10011453.
^Chopra, N. G.; et al. (1995). "Boron Nitride Nanotubes". Science. 269 (5226): 966–7. Bibcode:1995Sci...269..966C. doi:10.1126/science.269.5226.966. PMID 17807732. S2CID 28988094.
^Blase, X.; et al. (1994). "Stability and Band Gap Constancy of Boron Nitride Nanotubes". Europhysics Letters (EPL). 28 (5): 335. Bibcode:1994EL.....28..335B. doi:10.1209/0295-5075/28/5/007. S2CID 120010610.
^Wei-Qiang Han; et al. (2002). "Transformation of BxCyNz Nanotubes to Pure BN Nanotubes" (PDF). Applied Physics Letters. 81 (6): 1110. Bibcode:2002ApPhL..81.1110H. doi:10.1063/1.1498494.
^Kim, Jun Hee; Pham, Thang Viet; Hwang, Jae Hun; Kim, Cheol Sang; Kim, Myung Jong (2018-06-28). "Boron nitride nanotubes: synthesis and applications". Nano Convergence. 5 (1): 17. Bibcode:2018NanoC...5...17K. doi:10.1186/s40580-018-0149-y. ISSN 2196-5404. PMC 6021457. PMID 30046512.
^Kim, Jun Hee; Pham, Thang Viet; Hwang, Jae Hun; Kim, Cheol Sang; Kim, Myung Jong (2018-06-28). "Boron nitride nanotubes: synthesis and applications". Nano Convergence. 5 (1): 17. Bibcode:2018NanoC...5...17K. doi:10.1186/s40580-018-0149-y. ISSN 2196-5404. PMC 6021457. PMID 30046512.
^"Step toward creating planes that travel at hypersonic speed: Air travel times could be drastically reduced by rare material". ScienceDaily. Retrieved 2020-03-20.
^Mahajan, Amit; Kingon, Angus; Kukovecz, Ákos; Konya, Zoltan; Vilarinho, Paula M. (2013-01-01). "Studies on the thermal decomposition of multiwall carbon nanotubes under different atmospheres". Materials Letters. 90: 165–168. doi:10.1016/j.matlet.2012.08.120. ISSN 0167-577X.
^ abElsevier, Name |. "CNT's are old stuff. Make room for BNNT – it is stronger and can take the heat!". chemical-materials.elsevier.com. Retrieved 2020-03-20.
^Şen, Özlem; Emanet, Melis; Çulha, Mustafa (2016-01-01), Ciofani, Gianni; Mattoli, Virgilio (eds.), "Chapter 3 - Biocompatibility evaluation of boron nitride nanotubes", Boron Nitride Nanotubes in Nanomedicine, Micro and Nano Technologies, William Andrew Publishing, pp. 41–58, ISBN 978-0-323-38945-7, retrieved 2020-03-20
and 28 Related for: Boron nitride nanotube information
Boronnitride is a thermally and chemically resistant refractory compound of boron and nitrogen with the chemical formula BN. It exists in various crystalline...
the mineral sodium borate, and the ultra-hard crystals of boron carbide and boronnitride. Boron is synthesized entirely by cosmic ray spallation and supernovae...
atoms Boron nitridenanotube, a polymorph of boronnitride Carbon nanotube, includes general nanotube terminology and diagrams DNA nanotube, a two-dimensional...
Retrieved 1 September 2010. "What is the density of Hydrogenated BoronNitrideNanotubes (H-BNNT)?". space.stackexchange.com. Archived from the original...
and electrically insulating membrane that was pierced by a single boronnitridenanotube with an external diameter of a few dozen nanometers. With this membrane...
Boronnitride nanosheet is a crystalline form of the hexagonal boronnitride (h-BN), which has a thickness of one atom. Similar in geometry as well as...
will never be strong enough. Possible future alternatives include boronnitridenanotubes, diamond nanothreads and macro-scale single crystal graphene. The...
structures include boronnitride coated carbon nanotubes, and double layers of graphene joined in a pillared fashion by a boronnitridenanotube. The junction...
Boronnitride aerogel is an aerogel made of highly porous boronnitride (BN). It typically consists of a mixture of deformed boronnitridenanotubes and...
Aluminium nitride (AlN) is a solid nitride of aluminium. It has a high thermal conductivity of up to 321 W/(m·K) and is an electrical insulator. Its wurtzite...
10B. All clinical experience with NCT to date is with boron-10; hence this method is known as boron neutron capture therapy (BNCT). Use of another non-radioactive...
research team were the first to synthesize boronnitridenanotubes,[circular reference] and created carbon nanotube chemical sensors. He and his team built...
including graphite, diamond, and nanotubes. In the diamond-like structure, called cubic boronnitride (tradename Borazon), boron atoms exist in the tetrahedral...
output panel. Boronnitridenanotube Silicon nanotubes List of software for nanostructures modeling Potential applications of carbon nanotubes Melchor, S...
PTFE Stir Bars on the Covalent Functionalization of Carbon and BoronNitrideNanotubes Using Billups-Birch Reduction Conditions". ACS Omega. 4 (3): 5098–5106...
space elevator are notable for their plans to use carbon nanotube or boronnitridenanotube-based materials as the tensile element in the tether design...
laser and light-emitting diodes, Growth and characterization of boronnitridenanotubes. Superconducting and organic materials. Functional ceramics, such...
cast nanotubes of other materials, such as gallium nitride. These can have very different properties from CNTs—for example, gallium nitridenanotubes are...
junctions, Schottky junctions, etc. Layered materials, such as graphene, boronnitride, or transition metal dichalcogenides, have unique electronic properties...
self-assembling fullerenes such as C60, C70, or C78 into carbon nanotubes, but also boronnitridenanotubes Such structures also assemble when particles are coated...
(2011). "Energy Landscape of Fullerene Materials: A Comparison of Boron to BoronNitride and Carbon". Physical Review Letters. 106 (22): 225502. arXiv:1012...
Global Information