Two dimensional hexagonal boron nitride (2D-hBN): synthesis, properties and applications

Zhang, Kailiang; Feng, Yansong; Wang, Fang; Yang, Zhengchun; Wang, John

doi:10.1039/c7tc04300g

Cited by 864 publications

(617 citation statements)

References 280 publications

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“…[134] As an indirect band-gap semiconductor, h-BN exhibits unique electronic properties with a low dielectric constant, high thermal conductivity, and chemical inertness. Similar to graphene, the different h-BN planes are dominated by weak van der Waals interactions, while the in-plane nitrogen and boron atoms are combined by sp 2 orbitals to form strong σ-bonds, which are highly polarized because of the high asymmetry of the sublattices, resulting in the large band gap (5-6 eV) of h-BN.…”

Section: Hybrids Of C 60 and Hexagonal Boron Nitridementioning

confidence: 99%

Hybrids of Fullerenes and 2D Nanomaterials

2018

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Fullerene has a definite 0D closed‐cage molecular structure composed of merely sp2‐hybridized carbon atoms, enabling it to serve as an important building block that is useful for constructing supramolecular assemblies and micro/nanofunctional materials. Conversely, graphene has a 2D layered structure, possessing an exceptionally large specific surface area and high carrier mobility. Likewise, other emerging graphene‐analogous 2D nanomaterials, such as graphitic carbon nitride (g‐C3N4), transition‐metal dichalcogenides (TMDs), hexagonal boron nitride (h‐BN), and black phosphorus (BP), show unique electronic, physical, and chemical properties, which, however, exist only in the form of a monolayer and are typically anisotropic, limiting their applications. Upon hybridization with fullerenes, noncovalently or covalently, the physical/chemical properties of 2D nanomaterials can be tailored and, in most cases, improved, significantly extending their functionalities and applications. Here, an exhaustive review of all types of hybrids of fullerenes and 2D nanomaterials, such as graphene, g‐C3N4, TMDs, h‐BN, and BP, including their preparations, structures, properties, and applications, is presented. Finally, the prospects of fullerene‐2D nanomaterial hybrids, especially the opportunity of creating unknown functional materials by means of hybridization, are envisioned.

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Section: Hybrids Of C 60 and Hexagonal Boron Nitridementioning

confidence: 99%

Hybrids of Fullerenes and 2D Nanomaterials

2018

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“…Tw o-dimensional (2D) materials have attracted much attention since the rediscovery of graphene,a2D allotrope of carbon. [1] Since then, various 2D materials have been studied, for example,hexagonal boron nitride, [2] which is isoelectronic with graphene;silicene [3] and germanene, [4] which are heavier graphene analogues;a nd ah uge family of transition-metal dichalcogenides [5] (MoS 2 ,WS 2 ,etc) and MXenes, [6] which are layered transition-metal carbides and/or nitrides.The possible applications are mainly direct consequence of alarge surface area the 2D material and its conductivity;therefore,the main focus is towards electrochemical applications, [7] sensors, [8] supercapacitors, [9] and batteries. [10] Although many 2D materials have already been prepared, tested, and show excellent properties,new electronic devices require ac ertain size of band gap,w hich cannot be satisfied with these materials.T herefore,the search for materials that could overcome these limits has started.…”

Section: Introductionmentioning

confidence: 99%

Chemistry of Layered Pnictogens: Phosphorus, Arsenic, Antimony, and Bismuth

2019

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Materials with few layers have been subjected to extensive research for the last few decades owing to their remarkable properties as for example catalysts, optical and electrical devices, or sensors. The properties and electronic structure of these materials can be tailored by the introduction of substituents. In the case of more reactive species, the modification also can improve stability, which is also an important factor with respect to device fabrication. This review focuses on monoelemental layered materials of Group 15 elements (pnictogens) and in particular their modification, leading to better ambient stability and/or different properties by covalent and non‐covalent modifications. The future modification and application of pnictogens are outlined.

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“…Besides these, theoretical analysis reveals a band gap of 6.0 eV. This difference in band gap is due to electronic band dispersion caused by layer-to-layer interaction (Zhang et al 2017b;Kumbhakar et al 2015). Upon incorporation of Zr, red shift in wavelength was observed that serves to decrease band gap from 5.72 to 4.55 eV as demonstrated in Fig.…”

Section: Resultsmentioning

confidence: 86%

Bactericidal behavior of chemically exfoliated boron nitride nanosheets doped with zirconium

et al. 2020

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In this work, boron nitride nanosheets (BNNS) were produced through chemical exfoliation of bulk boron nitride (BN). Furthermore, hydrothermal technique was used to incorporate various concentrations (2.5, 5, 7.5, and 10 wt%) of zirconium (Zr) as a dopant. The prepared undoped and doped BN samples were evaluated for its antimicrobial activity against E. coli and S. aureus. Structural analysis was undertaken using x-ray diffraction which identified the presence of hexagonal BN. FTIR and Raman spectroscopy were utilized to outline IR fingerprint and electronic properties of the synthesized material. Morphological information was obtained through micrographs extracted using field emission scanning electron spectroscope (FESEM) and high resolution transmission electron microscope (HRTEM), while d-spacing was also calculated through HRTEM analysis. Optical properties and emission spectra were examined by applying UV-vis and photoluminescence spectroscope (PL); whereas, band gap analysis was carried out via Tauc plot. Zr-doped BN nanosheets at increasing concentrations (0.5, 1.0 mg/50 μl) revealed enhanced antibacterial activity against E. coli compared to S. aureus (p < 0.05).

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Two dimensional hexagonal boron nitride (2D-hBN): synthesis, properties and applications

Abstract: Comprehensive summary of the progress including crystal structures, fabrication methods, applications (especially for electronics) and functionalization of 2D-hBN from its discovery.

Cited by 864 publications

References 280 publications

Hybrids of Fullerenes and 2D Nanomaterials

Hybrids of Fullerenes and 2D Nanomaterials

Chemistry of Layered Pnictogens: Phosphorus, Arsenic, Antimony, and Bismuth

Bactericidal behavior of chemically exfoliated boron nitride nanosheets doped with zirconium

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