Advances in synthesis and applications of boron nitride nanotubes: A review

Xu, Tao; Zhang, Kai; Cai, Qiran; Wang, Nanyang; Wu, Liyun; He, Qian; Wang, Han; Zhang, Yi; Xie, Yongbing; Yao, Yagang; Chen, Ying

doi:10.1016/j.cej.2021.134118

Cited by 40 publications

(21 citation statements)

References 182 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With a tensile strength of 33 GPa, Young’s modulus of 1.3 TPa, , a bending modulus of 760 GPa, and a shear modulus of 7 GPa, they are an obvious candidate for fiber-reinforced composite materials. Along with nanofiller candidate, BNNTs have potential application in hydrogen storage, water purification, and biomedical such as anticancer drug delivery and tissue engineering. , …”

Section: Introductionmentioning

confidence: 99%

“…Along with nanofiller candidate, BNNTs have potential application in hydrogen storage, water purification, and biomedical such as anticancer drug delivery and tissue engineering. 8,9 In addition to their excellent mechanical properties, BNNTs are more thermally stable in oxidative environments than CNTs. 10,11 Many studies have shown that BNNTs remain stable up to 850 °C in air.…”

Section: ■ Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Extreme Thermal Stability and Dissociation Mechanisms of Purified Boron Nitride Nanotubes: Implications for High-Temperature Nanocomposites

Tank

Reyes

Park

et al. 2022

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

A fundamental understanding of the thermal behavior of reinforcement materials is crucial to fully exploit their properties in composites. Boron nitride nanotubes (BNNTs), structural analogues to carbon nanotubes, are a strong candidate for nanofillers in high-temperature composites due to their high thermal stability, oxidation resistance, excellent mechanical properties, and high thermal conductivity. In this paper, samples of high-quality, high-purity BNNTs were tested to thermal failure in an inert atmosphere for the first time up to 2500 °C. A significant fraction of the BNNTs survived temperatures as high as 2200°, and the BNNT samples were completely undamaged at temperatures as high as 1800 °C. Boron nitride (BN) nanopowders were tested identically to perform a comparative study, as hexagonal BN is commonly found in purified BNNT samples. Observed color darkening, significant weight loss, an increased boron atomic level, significant weight gain upon oxidation, the presence of boron oxide compounds in an oxidized sample, and the observed boron clusters at the nanoscale indicate dissociation of B-N bonds in the BNNT sample at 2200 °C. The stability of BNNT structures was observed up to 2000 °C, with local/partial wall dissociation or unzipping, and complete survivability of highly crystalline BNNTs is demonstrated up to 1800 °C. This paper presents the first-ever study on extreme temperature thermal stability of purified BNNTs in an inert atmosphere analogous to manufacturing processes for high-temperature nanocomposites.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Extreme Thermal Stability and Dissociation Mechanisms of Purified Boron Nitride Nanotubes: Implications for High-Temperature Nanocomposites

Tank

Reyes

Park

et al. 2022

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

show abstract

“…The produced BNNTs were multi-walled with a diameter of 62 to 82 nm. The CVD technique is studied with various precursors, catalysts, and temperatures to produce BNNTs [106].…”

Section: Chemical Vapour Deposition (Cvd) and Thermal Annealingmentioning

confidence: 99%

“…The grown BNNTs had a diameter ranging from 10 to 80 nm with the shape of bamboo and quasi-cylindrical [8]. Another method was heating the B powder, Fe 2 O 2 , and ammonium chloride in the autoclave at 600 • C for 12 h [106,107]. The diameter of obtained BNNTs was 100 nm.…”

Section: Chemical Vapour Deposition (Cvd) and Thermal Annealingmentioning

confidence: 99%

In Vitro and In Vivo Cytotoxicity of Boron Nitride Nanotubes: A Systematic Review

Kakarla

Kong

2022

Nanomaterials

View full text Add to dashboard Cite

Boron nitride nanotubes (BNNTs) are an exciting class of nanomaterials due to their unique chemical and physical characteristics. In recent decades, BNNTs have gained huge attention in research and development for various applications, including as nano-fillers for composites, semiconductor devices, hydrogen storage, and as an emerging material in biomedical and tissue engineering applications. However, the toxicity of BNNTs is not clear, and the biocompatibility is not proven yet. In this review, the role of BNNTs in biocompatibility studies is assessed in terms of their characteristics: cell viability, proliferation, therapeutic outcomes, and genotoxicity, which are vital elements for their prospective use in biomedical applications. A systematic review was conducted utilising the databases Scopus and Web of Science (WOS) (2008–2022). Additional findings were discovered manually by snowballing the reference lists of appropriate reviews. Only English-language articles were included. Finally, the significant analysis and discussion of the chosen articles are presented.

show abstract

“…Due to these excellent properties, boron nitride nanotubes can be used in oil filtering, self-cleaning membranes, hydrogen storage, heat dissipation, drug carriers, optoelectronics, etc. [ 44 , 45 , 46 ].…”

Section: Introductionmentioning

confidence: 99%

A Simple Method for the Synthesis of a Coral-like Boron Nitride Micro-/Nanostructure Catalyzed by Fe

Wang

Wang³

et al. 2023

Nanomaterials

View full text Add to dashboard Cite

Catalyzed by Fe, novel a coral-like boron nitride (BN) micro-/nanostructure was synthesized from B2O3 by a ball milling and annealing process. Observations of the morphology of the product indicated that the coral-like BN micro-/nanostructure consists of a bamboo-shaped nanotube stem and dense h-BN nanoflakes growing outward on the surface of the nanotube. Experimental results showed that the morphology of the BN nanotube was greatly dependent on the anneal process parameters. With the annealing time increasing from 0.5 h to 4 h, the morphology developed from smooth BN nanotubes, with a diameter size of around 100 nm, to rough, coral-like boron nitride with a large diameter of 3.6 μm. The formation mechanism of this coral-like BN micro-/nanostructure is a two-stage growth process: bamboo-shaped BN nanotubes are first generated through a vapor–liquid–solid (VLS) mechanism and then nanoflakes grow surrounding the surface of the nanotube. Acid pickling and a hydrolysis process were carried out to remove Fe, iron nitrogen and unreacted B2O3 impurities.

show abstract

Advances in synthesis and applications of boron nitride nanotubes: A review

Cited by 40 publications

References 182 publications

Extreme Thermal Stability and Dissociation Mechanisms of Purified Boron Nitride Nanotubes: Implications for High-Temperature Nanocomposites

Extreme Thermal Stability and Dissociation Mechanisms of Purified Boron Nitride Nanotubes: Implications for High-Temperature Nanocomposites

In Vitro and In Vivo Cytotoxicity of Boron Nitride Nanotubes: A Systematic Review

A Simple Method for the Synthesis of a Coral-like Boron Nitride Micro-/Nanostructure Catalyzed by Fe

Contact Info

Product

Resources

About