Thermally induced formation of 2D hexagonal BN nanoplates with tunable characteristics

Nersisyan, Hayk H.; Lee, Tae-Hyuk; Lee, Kap Ho; Jeong, Seong-Uk; Kang, Kyung-Soo; Bae, Ki Kwang; Lee, Sang-Kwon

doi:10.1016/j.jssc.2014.11.019

Cited by 20 publications

(10 citation statements)

References 29 publications

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“…The two effects have an important influence on the morphology and crystallinity of h‐BN. With the increase of the amount of MgCl 2 produced, the inhibition effect of the h‐BN (0 0 2) crystal plane was more obvious 27,28,33 . The morphology of h‐BN crystal changed from cylindrical to nanoplate, and the thickness of nanoplate became continued to decrease.…”

Section: Resultsmentioning

confidence: 99%

“…Different strategies have been tried to prepare h-BN by the magnesium thermal reduction method recently. [27][28][29][30][31][32][33] The h-BN prepared by magnesium thermal reduction mainly includes three morphologies, namely, nanotube, nanocapsule, and nanoplates. Yao et al prepared h-BN nanotubes on a large scale and at a low cost by using the gas-phase magnesium thermal reduction reaction in which magnesium and boron oxide were separately heated.…”

Section: Introductionmentioning

confidence: 99%

“…13,26 Lee et al synthesized ultra-thin h-BN nanoplates with lateral dimension less than 1000 nm and thickness of 1.5-100 nm by adding a large amount of NH 4 Cl as a solid nitriding agent to the Mg thermal reduction B 2 O 3 system. 27,33 With the large use of NH 4 Cl as the main reactant, the temperature of the magnesium thermal reduction reaction is greatly reduced caused by the endothermic decomposition of NH 4 Cl, which has extremely significant adverse effect on the crystallization of h-BN products.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, this method also has the advantages of fast reaction speed, short process, simple post‐processing, and easy large‐scale production for preparing h‐BN. Different strategies have been tried to prepare h‐BN by the magnesium thermal reduction method recently 27–33 …”

Section: Introductionmentioning

confidence: 99%

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Effect of ammonium chloride on the morphology of hexagonal boron nitride prepared by magnesium thermal reduction

Wu,

Wang,

Yang

et al. 2023

J Am Ceram Soc.

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Hexagonal boron nitride (h‐BN) crystals with cylindrical and nanoplate shape were prepared by magnesium thermal reduction method. A simple and novel strategy successfully controlled the preferred growth direction of h‐BN crystal by adding a small amount of ammonium chloride to the reaction system, realized the transformation of h‐BN crystal growth mode from cylindrical to nanoplate, and the thickness of h‐BN crystal nanoplates rapidly decreased from 2 μm to 40 nm. XRD results showed that the ammonium chloride content also significantly promoted the crystallinity of the synthesized h‐BN nanoplates, and the G.I. index decreased from 2.4 to 1.9. Raman and TEM results showed that the crystallinity of synthesized h‐BN was close to the properties of single crystal.This article is protected by copyright. All rights reserved

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of ammonium chloride on the morphology of hexagonal boron nitride prepared by magnesium thermal reduction

Wu,

Wang,

Yang

et al. 2023

J Am Ceram Soc.

View full text Add to dashboard Cite

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“…Moreover, in the presence of boric oxide [13,14], alkali metal borate or alkaline earth borate [15][16][17][18], the rate of the transformation could be increased obviously, while the transformation temperature could be lower. The raw materials such as B 2 O 3 and borate [19,20] are often used in the chemical synthesis of BN, therefore most of the BN synthesized by these methods are t-BN (low temperature) or h-BN (high temperature) [15][16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Catalyzed synthesis of rhombohedral boron nitride in sodium chloride molten salt

Liang

Zhao

et al. 2016

Ceramics International

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2D Crystal–Based Fibers: Status and Challenges

Meng

Kong

et al. 2019

Small

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2D crystals are emerging new materials in multidisciplinary fields including condensed state physics, electronics, energy, environmental engineering, and biomedicine. To employ 2D crystals for practical applications, these nanoscale crystals need to be processed into macroscale materials, such as suspensions, fibers, films, and 3D macrostructures. Among these macromaterials, fibers are flexible, knittable, and easy to use, which can fully reflect the advantages of the structure and properties of 2D crystals. Therefore, the fabrication and application of 2D crystal–based fibers is of great importance for expanding the impact of 2D crystals. In this Review, 2D crystals that are successfully prepared are overviewed based on their composition of elements. Subsequently, methods for preparing 2D crystals, 2D crystals dispersions, and 2D crystal–based fibers are systematically introduced. Then, the applications of 2D crystal–based fibers, such as flexible electronic devices, high‐efficiency catalysis, and adsorption, are also discussed. Finally, the status‐of‐quo, perspectives, and future challenges of 2D crystal–based fibers are summarized. This Review provides directions and guidelines for developing new 2D crystal–based fibers and exploring their potentials in the fields of smart wearable devices.

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Thermally induced formation of 2D hexagonal BN nanoplates with tunable characteristics

Cited by 20 publications

References 29 publications

Effect of ammonium chloride on the morphology of hexagonal boron nitride prepared by magnesium thermal reduction

Effect of ammonium chloride on the morphology of hexagonal boron nitride prepared by magnesium thermal reduction

Catalyzed synthesis of rhombohedral boron nitride in sodium chloride molten salt

2D Crystal–Based Fibers: Status and Challenges

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