scholarly journals Synthesis of boron nitride nanotubes from unprocessed colemanite

2013 ◽  
Vol 4 ◽  
pp. 843-851 ◽  
Author(s):  
Saban Kalay ◽  
Zehra Yilmaz ◽  
Mustafa Çulha
Keyword(s):  
Boron Nitride ◽  
Low Cost ◽  
Synthesis Method ◽  
Boron Nitride Nanotubes ◽  
High Yield ◽  
Outer Diameter ◽  
Spectroscopic Techniques ◽  
Precursor Material ◽  
Catalyst Type ◽  
First Time

Colemanite (Ca2B6O11·5H2O) is a natural and new precursor material for the synthesis of boron nitride nanotubes (BNNTs). BNNTs have been synthesized from unprocessed colemanite for the first time. The reaction parameters such as time, catalyst type, catalyst amount and temperature were optimized. It was found that the BNNT formation follows the base growth mechanism, which was initiated with a complex of boron nitride (BN) and iron atoms. The obtained BNNTs were characterized by using SEM, TEM, and spectroscopic techniques such as UV–vis, Raman, FTIR and XRD. The BNNTs were randomly oriented and multi-walled with an outer diameter of 10–30 nm and a wall thickness of 5 nm. This novel BNNT synthesis method can be used to obtain high yield, low cost and pure BNNTs.

High-Yield Synthesis of Bamboo-Like BN Nanotubes Using Self-Propagation High Temperature Synthesized Porous Precursor

2011 ◽  
Vol 694 ◽  
pp. 59-63
Author(s):  
Lai Ping Zhang ◽  
Ji Lin Wang ◽  
Yun Le Gu ◽  
Guo Wei Zhao ◽  
Qiong Li Qian ◽  
...  
Keyword(s):  
High Temperature ◽  
Boron Nitride ◽  
Synthesis Method ◽  
Chemical Vapor ◽  
Boron Nitride Nanotubes ◽  
High Yield ◽  
Synthesis Process ◽  
Chemical Vapor Deposition Method ◽  
Temperature Synthesis ◽  
High Temperature Synthesis

High-yield and high-purity bamboo-like boron nitride nanotubes were synthesized via an effective chemical vapor deposition method by annealing porous precursor under ammonia atmosphere at 1150 °C. The porous precursor, prepared by self-propagation high temperature synthesis method, was the key to bulk synthesis process. The as-synthesized boron nitride nanotubes were characterized by SEM, TEM, HRTEM, XRD, Raman and FTIR spectroscopy. These nanotubes had a bamboo-like structure with uniform diameters about 90 nm and length of more than 10 μm. The associated growth model is proposed in this paper.

Boron Nitride Nanotubes: Nanoparticles Functionalization and Junction Fabrication

2007 ◽  
Vol 7 (2) ◽  
pp. 530-534 ◽  
Author(s):  
Chunyi Zhi ◽  
Yoshio Bando ◽  
Guozhen Shen ◽  
Chengchun Tang ◽  
Dmitri Golberg
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Boron Nitride ◽  
Boron Nitride Nanotubes ◽  
X Ray Diffraction ◽  
Carbon Nanostructure ◽  
Wet Chemistry ◽  
X Ray ◽  
Transmission Electron ◽  
First Time

Adopting a wet chemistry method, Au and Fe3O4 nanoparticles were functionalized on boron nitride nanotubes (BNNTs) successfully for the first time. X-ray diffraction pattern and transmission electron microscopy were used to characterize the resultant products. Subsequently, a method was proposed to fabricate heterojunction structures based on the particle-functionalized BNNTs. As a demonstration, BNNT-carbon nanostructure, BNNT-ZnO and BNNT-Ga2O3 junctions were successfully fabricated using the functionalized particles as catalysts.

Preparation of Boron Nitride Nanotubes Aqueous Dispersions for Biological Applications

2008 ◽  
Vol 8 (12) ◽  
pp. 6223-6231 ◽  
Author(s):  
Gianni Ciofani ◽  
Vittoria Raffa ◽  
Arianna Menciassi ◽  
Paolo Dario
Keyword(s):  
Boron Nitride ◽  
Neuroblastoma Cell ◽  
Neuroblastoma Cell Line ◽  
Boron Nitride Nanotubes ◽  
Human Neuroblastoma Cell ◽  
Biological Applications ◽  
Human Neuroblastoma ◽  
Living Material ◽  
First Time

While in the last years applications of carbon nanotubes in the field of biotechnology have been largely proposed, biomedical applications of boron nitride nanotubes (BNNTs) are yet totally unexplored. BNNTs have very interesting physical properties that should be exploited in the biomedical field. At this date, studies on their biocompatibility are completely missing and the first issue behind this investigation is the dispersion of BNNTs in aqueous solutions. In this paper the authors propose, for the first time, a technique for obtaining BNNT stable dispersions suitable for biological applications, based on polyethyleneimine (PEI) water solutions. Based on authors' knowledge, in vitro testing performed on human neuroblastoma cell line (SH-SY5Y) is the first study of interaction between BNNTs and living material. Experimental results showed a satisfactory cell viability up to a concentration of 5.0 μg/ml PEI-BNNTs in the cell culture medium.

Patterned Growth of Long and Clean Boron Nitride Nanotubes on Substrates

2009 ◽  
Vol 1204 ◽  
Author(s):  
Chee Huei Lee ◽  
Ming Xie ◽  
Jiesheng Wang ◽  
Russell E. Cook ◽  
Yoke Khin Yap
Keyword(s):  
Boron Nitride ◽  
Chemical Vapor ◽  
Boron Nitride Nanotubes ◽  
Device Fabrication ◽  
Critical Parameters ◽  
Synthesis Process ◽  
High Quality ◽  
Patterned Growth ◽  
Si Substrates ◽  
First Time

AbstractFor the first time, patterned growth of boron nitride nanotubes (BNNTs) on Si substrates has been achieved by catalytic chemical vapor deposition (CCVD). Following the boron oxide chemical pathway and our growth vapor trapping approach, high quality and quantity BNNTs can be produced. Effective catalysts have been found to facilitate the growth of BNNTs, while some critical parameters of the synthesis have also been identified to control the quality and density. The success of patterned growth of high quality BNNTs not only explains the roles of the effective catalysts during the synthesis process, but could also be of technologically important for future device fabrication.

High-Purity Boron Nitride Nanotubes via High-Yield Hydrocarbon Solvent Processing

2019 ◽  
Vol 31 (20) ◽  
pp. 8351-8357 ◽  
Author(s):  
Mahmoud S. Amin ◽  
Bennett Atwater ◽  
Robert D. Pike ◽  
Kurt E. Williamson ◽  
David E. Kranbuehl ◽  
...  
Keyword(s):  
Boron Nitride ◽  
High Purity ◽  
Boron Nitride Nanotubes ◽  
High Yield ◽  
Hydrocarbon Solvent ◽  
Solvent Processing

High-Yield Synthesis of Boron Nitride Nanoribbons via Longitudinal Splitting of Boron Nitride Nanotubes by Potassium Vapor

ACS Nano ◽  
2014 ◽  
Vol 8 (10) ◽  
pp. 9867-9873 ◽  
Author(s):  
Alexander Sinitskii ◽  
Kristopher J. Erickson ◽  
Wei Lu ◽  
Ashley L. Gibb ◽  
Chunyi Zhi ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Boron Nitride Nanotubes ◽  
High Yield ◽  
Longitudinal Splitting ◽  
Potassium Vapor ◽  
Boron Nitride Nanoribbons

ChemInform Abstract: High-Yield Synthesis of Boron Nitride Nanotubes by Annealing Fe3BO6.

ChemInform ◽  
2011 ◽  
Vol 42 (36) ◽  
pp. no-no
Author(s):  
Jie Li ◽  
Laiping Zhang ◽  
Yunle Gu ◽  
Qiongli Qian ◽  
Jilin Wang ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Boron Nitride Nanotubes ◽  
High Yield

scholarly journals Synthesis and formation mechanism of BN nanotubes catalyzed by Mg through ball milling and annealing process

2021 ◽  
Vol 260 ◽  
pp. 03027
Author(s):  
Yanjiao Li ◽  
Jianfeng Guo ◽  
Xinfeng Wang ◽  
Han Wang ◽  
Xuan He
Keyword(s):  
Boron Nitride ◽  
Ball Milling ◽  
High Purity ◽  
Large Scale ◽  
Stable Process ◽  
Good Method ◽  
Boron Nitride Nanotubes ◽  
High Yield ◽  
Uniform Size ◽  
Bn Nanotubes

In order to improve the yield of BN nanotubes prepared by ball milling annealing method, a small amount of magnesium was used as catalyst to synthesized boron nitride nanotubes. The results showed that boron nitride nanotubes with high yield, high purity and uniform size were synthesized. The morphology of the synthesized BNNTs is bamboo-like and cylinder-shaped. The diameter of them is about 50 to 150 nm and most of them are 100nm. The length of them is dozens of microns. The existence of end particles indicates that the growth mechanism of BNNTs can be attributed to a gas-liquid-solid growth model. The magnesium catalyzed preparation of boron nitride nanotubes has stable process, high yield and high purity, which is expected to be a good method for large-scale preparation of boron nitride nanotubes.

High-yield Synthesis of Boron Nitride Nanotubes by Annealing Fe3BO6

2011 ◽  
Vol 40 (5) ◽  
pp. 540-541 ◽  
Author(s):  
Jie Li ◽  
Laiping Zhang ◽  
Yunle Gu ◽  
Qiongli Qian ◽  
Jilin Wang ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Boron Nitride Nanotubes ◽  
High Yield
Sign in / Sign up

Export Citation Format

Share Document