Article
Chemistry, Physical
Jaehyoung Ko, Daeun Kim, Giho Sim, Se Youn Moon, Sang Seok Lee, Se Gyu Jang, Seokhoon Ahn, Sung Gap Im, Yongho Joo
Summary: Boron nitride nanotube (BNNT) has attracted attention due to its exceptional material properties, but practical implementation has been difficult due to purity issues. In this study, a scalable purification method for BNNT was developed using aqueous polymer two-phase extraction, achieving a high purity level of >98%. The method was successfully scaled up and the purified BNNT exhibited liquid crystal behavior. This large-scale purification effort is expected to contribute to the macroscopic realization of BNNT's exceptional properties in the future.
Article
Multidisciplinary Sciences
Zhuyuan Wang, Xue Yan, Qinfu Hou, Yue Liu, Xiangkang Zeng, Yuan Kang, Wang Zhao, Xuefeng Li, Shi Yuan, Ruosang Qiu, Md Hemayet Uddin, Ruoxin Wang, Yun Xia, Meipeng Jian, Yan Kang, Li Gao, Songmiao Liang, Jefferson Zhe Liu, Huanting Wang, Xiwang Zhang
Summary: The authors demonstrate a scalable method for producing monolayer nanosheets by ball-milling exfoliation with the assistance of viscous polyethyleneimine (PEI) liquid. By effectively exfoliating graphite into graphene nanosheets, they achieved a high monolayer percentage of 97.9% at a yield of 78.3%. The universality of this technique was proven by successfully exfoliating other layered materials such as carbon nitride, covalent organic framework, zeolitic imidazolate framework, and hexagonal boron nitride.
NATURE COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Asia Matatyaho Ya'akobi, Cedric J. S. Ginestra, Lyndsey R. Scammell, Michael W. Smith, Matteo Pasquali, Yeshayahu Talmon
Summary: This study investigates boron nitride nanotubes (BNNTs) synthesized by the high temperature-pressure (HTP) method and compares their properties after different purification processes using advanced electron microscopy techniques. The results show that BNNTs of higher purity form small, ordered domains at lower concentrations and defects do not prevent their nematic alignment. Cryogenic electron microscopy provides direct-imaging evidence of the BNNT liquid crystalline phase, suggesting the potential for the fabrication of highly ordered BNNT-based macroscopic assemblies through liquid-phase processing.
JOURNAL OF MATERIALS RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Hongyu Zhang, Jijiang He, Weike Zhang, Ivano E. Castelli, Martin Saunders, Jeffrey M. Gordon, Hui Tong Chua
Summary: The generation of boron nitride nano-onions (BNNOs) from hexagonal-BN crystallite powder via a one-pot, non-toxic, catalyst-free, rapid hightemperature lamp ablation procedure is reported. Characterization procedures revealed the shapes, sizes, and composition of the nanoparticles, and a formation mechanism for BNNOs is proposed. Temperature measurements also showed the viable temperature range for BNNO generation.
Article
Physics, Applied
Zhenxing Yang, Javeed Mahmood, Shifeng Niu, Hui Tian, Tingting Ji, Cailong Liu, Jong-Beom Baek, Bertil Sundqvist, Mingguang Yao, Bingbing Liu
Summary: The study reveals that under pressure, strong electrostatic repulsion between π electrons and in-plane sp(2) electrons in graphitic carbon nitride materials may distort intralayer phonon vibrations and affect the increase in resistivity. Moreover, the different pressure responses in resistance of C2N and C3N are attributed to their distinct π electron distributions.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
Yanan Zhao, Shiqi Zhao, Hailian Huang, Zijie Liu, Xiaorong Cheng, Graham Dawson
Summary: In this study, composites between TiNT and BN were prepared by a new mixed hydrothermal/solvothermal method at different temperatures, and compared to physical mixing. The composites showed enhanced photocatalytic hydrogen production, with the composite prepared at 140 degrees C exhibiting Ti-O-B bond formation and the highest efficiency of 1600 mu molg-1hr-1. The structural and optical properties, as well as charge carrier lifetime, were investigated to understand the enhanced activity, and a band diagram was proposed to explain the results.
APPLIED SURFACE SCIENCE
(2023)
Review
Materials Science, Multidisciplinary
Adesewa O. Maselugbo, Haley B. Harrison, Jeffrey R. Alston
Summary: Boron nitride nanotubes (BNNTs) are considered to be one of the most important materials of the future due to their extraordinary physical properties, but face significant scientific challenges in terms of large-scale synthesis, purification, and study.
JOURNAL OF MATERIALS RESEARCH
(2022)
Article
Physics, Applied
J. -Z. Zhang
Summary: This study systematically investigates the properties of phonon polaritons (PHPs) in multilayers of hexagonal boron nitride, including confinement, group velocity, propagation quality factor (PQF), and wavelength scaling. It is found that the dielectric response of the substrate and the effect of retardation should be considered for an accurate description of the PHP properties. Additionally, the coupling of photons and longitudinal optical phonons leads to a deviation from the linear scaling law near the center frequency.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Aaditya Pendse, Semih Cetindag, Kun Wang, Donglin Li, Richard J. Castellano, Da-Chi Yang, Tongshuai Wang, Jerry W. Shan, Sangil Kim
Summary: This study presents a nanofluidic platform utilizing BNNTs as a model system to investigate ion transport. The results reveal the significant role of strong electrostatic interactions between highly charged BNNTs and ions in defining the ion transport mechanism. Furthermore, the study demonstrates the superior NaCl separation performance of BNNTs compared to commercial membranes.
Article
Energy & Fuels
Fatma Nur Tuzluca Yesilbag, Yasar Ozkan Yesilbag, Ahmad Huseyin, Ahmed Jalal Salih Salih, Mehmet Ertugrul
Summary: Optimizing interlayer spacing of 2D MXene is important for synthesizing 3D composite electrodes for energy storage. In this study, flexible and conductive MXene/BCN nanotube composite film electrodes were prepared, with a specific capacitance of 678 F g-1 and excellent cycle stability. The composite electrodes made of 2D MXene and 1D BCN nanotubes open up a new avenue for energy storage materials.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Nanoscience & Nanotechnology
Ling Li, Ningqiang Shi, Xiangqian Jiang, Weiping Chen, Chuncheng Ban, Jiandong Hao
Summary: This study focuses on the synthesis of high-quality bismuth telluride (Bi2Te3) nanowires and boron nitride nanotubes (BNNTs), as well as the preparation of Bi2Te3-BNNTs and Bi2Te3-BCNNTs composite films. The obtained composite films exhibit high electrical conductivity, good flexibility, and thermal stability. They show great potential for application in thermoelectric conversion.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Polymer Science
Xiangqian Jiang, Chuncheng Ban, Ling Li, Jiandong Hao, Ningqiang Shi, Weiping Chen, Peng Gao
Summary: In this study, composite nanofiber films based on boron carbon nitrogen were prepared by electrospinning, and it was found that the diameter of nanofibers changed with electrospinning voltage and precursor solution concentration. The thermoelectric properties of the films were closely related to the electrospinning quality, with significant improvements in thermoelectric characteristics observed in multilayer nanocomposite fiber films.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Ceramics
Minhyeok Lee, Unseok Jung, Jong-Il Kim, Hyeondeok Jeong, Jaewoo Kim, Se Youn Moon, Se Gyu Jang, Sung-Soo Ryu, Seong Yun Kim, Hunsu Lee
Summary: Ultrahigh-temperature ceramics (UHTCs) are highly hard and resistant to oxidative ablation, suitable for hypersonic environments. However, their low fracture toughness limits their use. In this study, zirconium diboride was sintered with high aspect ratio boron nitride nanotubes (BNNTs) to improve fracture toughness. Plasma functionalization effectively disperses the BNNTs in UHTC, increasing the fracture toughness of the UHTC composite.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Ping Wang, Woncheol Lee, Joseph P. Corbett, William H. Koll, Nguyen M. Vu, David Arto Laleyan, Qiannan Wen, Yuanpeng Wu, Ayush Pandey, Jiseok Gim, Ding Wang, Diana Y. Qiu, Robert Hovden, Mackillo Kira, John T. Heron, Jay A. Gupta, Emmanouil Kioupakis, Zetian Mi
Summary: This study proposes a growth process mediated by an hBN/G interface for the controlled synthesis of high-quality monolayer hBN. The scalable epitaxy of unidirectional monolayer hBN on graphene aligned to the underlying graphene lattice is achieved. Additionally, it is discovered that monolayer hBN exhibits deep-ultraviolet emission with a giant renormalized direct bandgap on graphene.
ADVANCED MATERIALS
(2022)
Article
Materials Science, Composites
Jianzheng Cui, Fanlin Zeng, Bin Yuan
Summary: The reinforcing effect of carbon nanotubes (CNTs) and boron nitride nanotubes (BNNTs) on the interfacial characteristics and tensile behaviors of natural rubber (NR) composites were investigated using molecular dynamics simulations. Results showed that the incorporation of BNNTs achieved higher improvements in interfacial frictional force and shear strength compared to CNTs. Additionally, both CNTs and BNNTs significantly increased the mechanical properties of the NR composites.
POLYMER COMPOSITES
(2022)
Article
Engineering, Multidisciplinary
Michael B. Jakubinek, Behnam Ashrafi, Yunfa Zhang, Yadienka Martinez-Rubi, Christopher T. Kingston, Andrew Johnston, Benoit Simard
COMPOSITES PART B-ENGINEERING
(2015)
Article
Chemistry, Physical
Yadienka Martinez-Rubi, Zygmunt J. Jakubek, Michael B. Jakubinek, Keun Su Kim, Fuyong Cheng, Martin Couillard, Christopher Kingston, Benoit Simard
JOURNAL OF PHYSICAL CHEMISTRY C
(2015)
Article
Chemistry, Physical
Zhao Li, Jianfu Ding, Paul Finnie, Jacques Lefebvre, Fuyong Cheng, Christopher T. Kingston, Patrick R. L. Malenfant
Article
Chemistry, Multidisciplinary
Keun Su Kim, Martin Couillard, Homin Shin, Mark Plunkett, Dean Ruth, Christopher T. Kingston, Benoit Simard
Article
Chemistry, Multidisciplinary
Michelle M. G. Chartrand, Christopher T. Kingston, Benoit Simard, Zoltan Mester
Article
Chemistry, Physical
Hyunjin Cho, Steven Walker, Mark Plunkett, Dean Ruth, Robyn Iannitto, Yadienka Martinez Rubi, Keun Su Kim, Christa M. Homenick, Andreas Brinkmann, Martin Couillard, Stephane Denommee, Jingwen Guan, Michael B. Jakubinek, Zygmunt J. Jakubek, Christopher T. Kingston, Benoit Simard
CHEMISTRY OF MATERIALS
(2020)
Article
Engineering, Environmental
A. Alrebh, M. Plunkett, L. Gaburici, M. Couillard, T. Lacelle, C. T. Kingston, K. S. Kim
Summary: This study presents a new method for the synthesis of boron nitride nanotubes (BNNTs) using ammonia borane (AB) as the raw material in hydrogen-assisted thermal plasma. The results show that AB can enhance the synthesis of BNNTs with reduced impurities and increased density of nucleating seeds.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Aotian Li, Benoit Simard, Chae-Ho Yim, Gilles P. Robertson, Andre Zborowski, Patrick H. J. Mercier, Christopher T. Kingston, Jingwen Guan
Summary: This study reports on the purification of raw AOAs for the purpose of forming AOA-green fibers through electrospinning, and validates the potential of converting asphaltenes into carbon fibers. The purified AOAs showed improved mechanical strength and were able to withstand higher temperatures.
Article
Nanoscience & Nanotechnology
Antonio J. Paleo, Yadienka Martinez-Rubi, Beate Krause, Petra Potschke, Michael B. Jakubinek, Behnam Ashrafi, Christopher Kingston
Summary: The integration of SWCNTs in fabric-like sheets simplifies handling and allows for composites with higher nanotube contents. In this study, p-type SWCNT-TPU fabric materials with a wide range of SWCNT contents were developed using a one-step filtration method. The mechanical and thermoelectric properties of these nanocomposites were tailored by varying the SWCNT/TPU wt % ratio, resulting in improved strength and stretchability compared to pristine SWCNT buckypaper. These findings represent a significant step towards the development of easy-to-process self-supporting and stretchable materials for flexible thermoelectric devices.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Y. Zhang, A. Johnston, A. Yousefpour, J. Guan, B. Simard, C. Kingston
Article
Nanoscience & Nanotechnology
Weimiao Wang, Zheling Li, Eric Prestat, Teruo Hashimoto, Jingwen Guan, Keun Su Kim, Christopher T. Kingston, Benoit Simard, Robert J. Young
ACS APPLIED NANO MATERIALS
(2020)
Article
Chemistry, Physical
Wendel Wohlleben, Christopher Kingston, Janet Carter, E. Sahle-Demessie, Socorro Vazquez-Campos, Brad Acrey, Chia-Ying Chen, Ernest Walton, Heiko Egenolf, Philipp Mueller, Richard Zepp
Proceedings Paper
Engineering, Mechanical
B. Ashrafi, M. B. Jakubinek, Y. Martinez-Rubi, Y. Zhang, C. T. Kingston, A. Johnston, B. Simard
PROCEEDINGS OF THE AMERICAN SOCIETY FOR COMPOSITES: THIRTIETH TECHNICAL CONFERENCE
(2015)
Proceedings Paper
Materials Science, Composites
B. Ashrafi, M. B. Jakubinek, J. Guan, Y. Martinez-Rubi, K. S. Kim, K. O'Neill, M. Rahmat, C. Kingston, A. Yousefpour, A. Johnston, B. Simard
20TH INTERNATIONAL CONFERENCE ON COMPOSITE MATERIALS
(2015)