One-step environmentally friendly exfoliation and functionalization of hexagonal boron nitride by β-cyclodextrin-assisted ball milling

2020 ◽  
Vol 46 (13) ◽  
pp. 21084-21089 ◽  
Author(s):  
Dong Ji ◽  
Zhen Wang ◽  
Yanjiao Zhu ◽  
Haibin Yu
Keyword(s):  
Boron Nitride ◽  
Ball Milling ◽  
Hexagonal Boron Nitride ◽  
Environmentally Friendly ◽  
One Step

scholarly journals Catalyst-free one step synthesis of large area vertically stacked N-doped graphene-boron nitride heterostructures from biomass source

Nanoscale ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 4391-4397 ◽  
Author(s):  
Ivan Esteve-Adell ◽  
Jinbao He ◽  
Fernando Ramiro ◽  
Pedro Atienzar ◽  
Ana Primo ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Inert Atmosphere ◽  
Large Area ◽  
Catalyst Free ◽  
Doped Graphene ◽  
One Step ◽  
The One

A procedure for the one-step preparation of films of few-layer N-doped graphene on top of nanometric hexagonal boron nitride sheets based on the pyrolysis at 900 °C under an inert atmosphere is reported.

scholarly journals Preparation of Boron Nitride Nanoplatelets via Amino Acid Assisted Ball Milling: Towards Thermal Conductivity Application

Nanomaterials ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1652
Author(s):  
Nan Yang ◽  
Haifeng Ji ◽  
Xiaoxia Jiang ◽  
Xiongwei Qu ◽  
Xiaojie Zhang ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Amino Acid ◽  
Boron Nitride ◽  
Ball Milling ◽  
Hexagonal Boron Nitride ◽  
Base Material ◽  
Single Layer ◽  
Self Healing ◽  
Dispersion State ◽  
Pva Hydrogel

Hexagonal boron nitride nanoplatelets (BNNPs) have attracted widespread attention due to their unique physical properties and their peeling from the base material. Mechanical exfoliation is a simple, scalable approach to produce single-layer or few-layer BNNPs. In this work, two amino acid grafted boron nitride nanoplatelets, Lys@BNNP and Glu@BNNP, were successfully prepared via ball milling of h-BN with L-Lysine and L-Glutamic acid, respectively. It was found that the dispersion state of Lys@BNNP and Glu@BNNP in water had been effectively stabilized due to the introduction of amino acid moieties which contained a hydrophilic carboxyl group. PVA hydrogel composites with Lys@BNNP and Glu@BNNP as functional fillers were constructed and extensively studied. With 11.3 wt% Lys@BNNP incorporated, the thermal conductivity of Lys@BNNP/PVA hydrogel composite was up to 0.91 W m−1K−1, increased by 78%, comparing to the neat PVA hydrogel. Meanwhile, the mechanical and self-healing properties of the composites were simultaneously largely enhanced.

Environmentally friendly, scalable exfoliation for few-layered hexagonal boron nitride nanosheets (BNNSs) by multi-time thermal expansion based on released gases

2019 ◽  
Vol 7 (46) ◽  
pp. 14701-14708 ◽  
Author(s):  
Zhi-lin Cheng ◽  
Zhan-sheng Ma ◽  
Hong-liang Ding ◽  
Zan Liu
Keyword(s):  
Thermal Expansion ◽  
Boron Nitride ◽  
Large Scale ◽  
Hexagonal Boron Nitride ◽  
Environmentally Friendly ◽  
Boron Nitride Nanosheets ◽  
Novel Approach

A novel approach to exfoliate BNNSs on a large scale via multi-time thermal expansion is described.

Effects of ball-milling treatment on physicochemical properties and solid base activity of hexagonal boron nitrides

2019 ◽  
Vol 9 (2) ◽  
pp. 302-309 ◽  
Author(s):  
Shoichiro Namba ◽  
Atsushi Takagaki ◽  
Keiko Jimura ◽  
Shigenobu Hayashi ◽  
Ryuji Kikuchi ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Physicochemical Properties ◽  
Ball Milling ◽  
Surface Area ◽  
Hexagonal Boron Nitride ◽  
Solid Base ◽  
Solid Base Catalysts ◽  
Base Catalysts ◽  
Boron Nitrides

Hexagonal boron nitride solid base catalysts were prepared by simple ball-milling at various rotation speeds of a commercial low-surface area boron nitride.

High Surface and High Nanoporosity Boron Nitride Adapted to Hydrogen Sequestration

2007 ◽  
Vol 555 ◽  
pp. 355-362 ◽  
Author(s):  
L. Laversenne ◽  
Š. Miljanić ◽  
Philippe Miele ◽  
Christelle Goutaudier ◽  
B. Bonnetot
Keyword(s):  
Boron Nitride ◽  
Room Temperature ◽  
Storage Capacity ◽  
Hexagonal Boron Nitride ◽  
High Surface ◽  
High Surface Area ◽  
Specific Area ◽  
Nitrogen Atmosphere ◽  
Molecular Precursors ◽  
One Step

High surface area nanoporous powders of hexagonal boron nitride (h-BN) have been prepared from molecular precursors to be used for hydrogen sequestration. The more promising samples were obtained using a precursor derived from trichloroborazine (TCB). The precursor was first reacted with ammonia at room temperature leading to the molecular complex Cl3B3N3H3, 6 NH3 which was heated up to 650 °C under ammonia and then up to 1000 °C under nitrogen, giving rise to a high reactive h-BN powder. This crude powder was stabilised by an annealing up to 1800 °C under nitrogen atmosphere leading to a very stable compound exhibiting a specific area of more than 300 m2·g-1 and presenting a very specific nanometric spherical texture. Some samples were doped with platinum (about 1 wt.%) to enhance the activity of pure h-BN using an original one step synthesis route starting from a mixture of BN and Pt precursors. Attempts to sequester hydrogen into these powders were made successfully at -196 °C under 10 MPa, but the stored amount was only about 0.3 wt.% and the platinum added BN powders did not lead to an enhancement of the storage capacity.

Intercalation of hexagonal boron nitride and graphite with lithium by sequential process of ball milling and heat treatment

2017 ◽  
Vol 707 ◽  
pp. 172-177 ◽  
Author(s):  
Jungryang Kim ◽  
Eiji Yamasue ◽  
Hideyuki Okumura ◽  
Chishiro Michioka ◽  
Keiichi N. Ishihara
Keyword(s):  
Heat Treatment ◽  
Boron Nitride ◽  
Ball Milling ◽  
Hexagonal Boron Nitride ◽  
Sequential Process
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