Boron nitride nanotubes: synthesis and applications
2018年6月28日 · In this article, we discussed current progress in the production of boron nitride nanotube, focusing on the most common and effective methods that have been well established so far. In addition, we presented various applications of BNNT including polymer composite reinforcement, thermal management packages, piezo actuators, and neutron ...
Boron- and nitrogen-doped carbon nanotubes and graphene
2010年12月10日 · Single-walled, double-walled and multi-walled carbon nanotubes can be readily doped with boron and nitrogen (up to a few atomic percent) by employing gaseous molecular precursors such as B 2 H 6, NH 3 and pyridine as the hetero atom sources. Raman spectroscopy provides valuable information on the changes in the structure of the nanotubes ...
Boron nitride nanotube - Wikipedia
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
Boron Nitride Nanotubes | Science - AAAS
1995年8月18日 · The successful synthesis of pure boron nitride (BN) nanotubes is reported here. Multi-walled tubes with inner diameters on the order of 1 to 3 nanometers and with lengths up to 200 nanometers were produced in a carbon-free plasma discharge between a BN-packed tungsten rod and a cooled copper electrode.
Boron nitride nanotubes: synthesis and applications - PMC
Boron nitride nanotube (BNNT) has similar tubular nanostructure as carbon nanotube (CNT) in which boron and nitrogen atoms arranged in a hexagonal network. Owing to the unique atomic structure, BNNT has numerous excellent intrinsic properties such ...
at UC Berkeley in the mid 1990’s, the boron nitride nanotube (BNNT) has proven very difficult to make until now. Herein we provide an update on a catalyst-free method for synthesizing highly crystalline, small diameter BNNTs with a
Advances in synthesis and applications of boron nitride nanotubes…
2022年3月1日 · Boron nitride nanotubes (BNNTs) have attracted worldwide research interest since 1995 due to their excellent properties and a wide range of applications in numerous fields. The development of efficient preparation routes for BNNTs has always been the primary obstacle, limiting their practical application.
Boron nitride nanotubes and nanosheets: Their basic properties ...
2023年6月1日 · Recently, boron nitride nanotubes (BNNTs) and nanosheets (BNNSs) have drawn the attention of scientists due to their excellent performances in chemical stability, thermal conduction, electric insulation, neutron absorption, and high-temperature antioxidation [1].
Doping Graphitic and Carbon Nanotube Structures with Boron and Nitrogen …
1994年12月9日 · Concentration profiles derived from electron energy-loss line spectra show that boron and nitrogen are correlated in a one-to-one ratio; core energy-loss fine structures reveal small differences compared to pure hexagonal boron nitride. Boron and carbon are anticorrelated, suggesting the substitution of boron and nitrogen into the carbon network.
Boron and Oxygen Dual‐Doped Carbon Nitride Nanotubes with …
3 天之前 · This work reports boron and oxygen dual-doped carbon nitride nanotubes (B/O-CNNTs) prepared via a copolymerization process for electrocatalytic ammonia synthesis from nitrogen gas (NRR) and nitrate (NO 3 RR) sources, respectively. By adjusting the dosage of boron oxide precursor, the texture and content of B/O dual dopants and the coordination environment in the resulting 1D CNNTs can be tuned.