Synthesized few-layers hexagonal boron nitride nanosheets

doi:10.1088/1674-1056/27/1/016102

Abstract The hexagonal boron nitrides (BNs) with different morphologies are synthesized on a large scale by a simple route using a two-step synthetic process. The morphology of h-BN can be easily controlled by changing the heat-treatment atmosphere. The whiskers with 0.5-10 μm in diameter and 50-100 μm in length consist of few-layers nanosheets in the NH₃ gas. The BN nanosheets can be dissociated from the whiskers by ultrasonic treatment, which are less than 5 nm in thickness and even only two layers thick. The concentration and activity of N play an important role, and abundant N and higher activity are conducive for refining grain in reaction. The H₃BO₃ and C₃N₆H₆ molecules form a layer-like morphology with the interlinked planar triangle by a hydrogen-bonded structure.

Keywords: boron nitride few layers nanosheets

Received: 13 August 2017
Revised: 13 October 2017
Accepted manuscript online:

PACS:	61.72.uj	(III-V and II-VI semiconductors)
	73.90.+f	(Other topics in electronic structure and electrical properties of surfaces, interfaces, thin films, and low-dimensional structures)
	62.23.Kn	(Nanosheets)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11504266), the Tianjin Natural Science Foundation, China (Grant No. 17JCQNJC02300), and the National Key Foundation for Exploring Scientific Instrument, China (Grant No. 2014YQ120351).

Corresponding Authors: Zhao-Jun Mo
E-mail: mzjmzj163@163.com

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Zhao-Jun Mo(莫兆军), Zhi-Hong Hao(郝志红), Xiao-Jie Ping(平晓杰), Li-Na Kong(孔丽娜), Hui Yang(杨慧), Jia-Lin Cheng(程佳林), Jun-Kai Zhang(张君凯), Yong-Hao Jin(金永昊), Lan Li(李岚) Synthesized few-layers hexagonal boron nitride nanosheets 2018 Chin. Phys. B 27 016102

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