The piezoelectric and dielectric properties of flexible, nanoporous, self-assembled boron nitride nanotube thin films

Ban, Chuncheng; Jiang, Xin; Li, Ling; Liu, Xiaowei

doi:10.1007/s10853-019-03906-w

Cited by 14 publications

(5 citation statements)

References 42 publications

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“…The analysis of BN by piezoresponse force microscopy (PFM; Text S5 and Figure S2 ) gave the PZ coefficient under 33-mode activation, d 33 , as 19.4 pm/V ( Figure 1 b), which is within the reported range (18–41 pm/V). 30 , 31 …”

Section: Resultsmentioning

confidence: 99%

Solvent-Free Nonthermal Destruction of PFAS Chemicals and PFAS in Sediment by Piezoelectric Ball Milling

Yang

et al. 2023

Environ. Sci. Technol. Lett.

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Studies on the destruction of solid per- and polyfluoroalkyl substances (PFAS) chemicals and PFAS-laden solid wastes significantly lag behind the urgent social demand. There is a great need to develop novel treatment processes that can destroy nonaqueous PFAS at ambient temperatures and pressures. In this study, we develop a piezoelectric-material-assisted ball milling (PZM-BM) process built on the principle that ball collisions during milling can activate PZMs to generate ∼kV potentials for PFAS destruction in the absence of solvents. Using boron nitride (BN), a typical PZM, as an example, we successfully demonstrate the complete destruction and near-quantitative (∼100%) defluorination of solid PFOS and perfluorooctanoic acid (PFOA) after a 2 h treatment. This process was also used to treat PFAS-contaminated sediment. Approximately 80% of 21 targeted PFAS were destroyed after 6 h of treatment. The reaction mechanisms were determined to be a combination of piezo-electrochemical oxidation of PFAS and fluorination of BN. The PZM-BM process demonstrates many potential advantages, as the degradation of diverse PFAS is independent of functional group and chain configurations and does not require caustic chemicals, heating, or pressurization. This pioneering study lays the groundwork for optimizing PZM-BM to treat various PFAS-laden solid wastes.

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Section: Resultsmentioning

confidence: 99%

Solvent-Free Nonthermal Destruction of PFAS Chemicals and PFAS in Sediment by Piezoelectric Ball Milling

Yang

et al. 2023

Environ. Sci. Technol. Lett.

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“…Polyimide composites containing strain‐aligned BNNTs demonstrate piezoelectric coefficients up to 4.81 pm V −1 , [ 13 ] and nanoporous BNNT thin films are predicted to possess piezoelectric responses competitive with commercial piezoelectric polymers. [ 14 ] Of particular interest are stretchable BNNT composites which are optimal for use as flexible thermal interconnects [ 15 ] and platforms for strain aligning nanotubes [ 16 ] to augment mechanical, [ 17 ] thermal, [ 18 ] and piezoelectric properties. [ 13,19 ]…”

Section: Figurementioning

confidence: 99%

Tunable Piezoelectricity of Multifunctional Boron Nitride Nanotube/Poly(dimethylsiloxane) Stretchable Composites

et al. 2020

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Multifunctional piezoelectric materials with controllable mechanical and thermal properties could enable the next generation of soft interconnect materials, energy harvesters, and health monitors. [1] Boron nitride nanotubes (BNNTs) possess unique properties that have piqued the interest of the broader research community as the basis for these multifunctional materials. [2] BNNTs exhibit high mechanical strength, possessing a Young's modulus (Y) as high as 1.3 TPa [3] which outperforms most structural materials. BNNTs also show enhanced thermal properties including extreme thermal stability in air (>800 °C) [4] and thermal conductivity competitive with carbon nanotubes (CNT) [5] which, when combined with their electrically insulating nature, may enable the development of novel thermally conductive, electrically insulating materials. [6] Of particular interest are BNNTs' piezoelectric properties, [7] arising from polarization due to the electronegativity difference between boron and nitrogen atoms, which is predicted to result in the generation of a coupled electric dipole in response to deformation. [8] With the advent of techniques to produce large volumes of BNNTs such as the high temperature pressure (HTP) method, [9,10] interest has shifted to production of ensembles of BNNTs which translate the nanoscale properties of BNNTs to macroscale systems. The most widely employed technique to produce functional structures of BNNTs is suspension in a matrix material to form a functional composite. For instance, the dispersion of BNNTs in soft polymers has been shown to augment mechanical properties, nearly doubling the compressive modulus of polyurethane. [11] Similarly, BNNTs can be added to thermally insulating materials to enhance thermal conductivity, with addition of BNNTs to polymer-derived ceramic (PDC) enhancing thermal conductivity by 2100%. [12] Most saliently, BNNT/polymer composites represent the first realization of BNNT piezoelectricity at the macroscale. Polyimide composites containing strainaligned BNNTs demonstrate piezoelectric coefficients up to 4.81 pm V −1 , [13] and nanoporous BNNT thin films are predicted to possess piezoelectric responses competitive with commercial piezoelectric polymers. [14] Of particular interest are stretchable BNNT composites which are optimal for use as flexible thermal interconnects [15] and platforms for strain aligning nanotubes [16] Boron nitride nanotubes (BNNT) uniformly dispersed in stretchable materials, such as poly(dimethylsiloxane) (PDMS), could create the next generation of composites with augmented mechanical, thermal, and piezoelectric characteristics. This work reports tunable piezoelectricity of multifunctional BNNT/PDMS stretchable composites prepared via co-solvent blending with tetrahydrofuran (THF) to disperse BNNTs in PDMS while avoiding sonication or functionalization. The resultant stretchable BNNT/PDMS composites demonstrate augmented Young's modulus (200% increase at 9 wt% BNNT) and thermal conductivity (120% increase at 9 wt% BNNT) without losin...

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“…Among piezoelectric nanomaterials, BNNTs have great potential in nanomedicine due to their good biocompatibility verified in vitro and in vivo studies. BNNTs can convey the electric field due to their piezoelectrical properties [139]. This property can be used in neural regeneration studies.…”

Section: Use Of Bnnts In Biomedical Applicationsmentioning

confidence: 99%

Properties and applications of boron nitride nanotubes

et al. 2022

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Nanomaterials have received increasing attention due to their controllable physical and chemical properties and their improved performance over their bulk structures during the last years. Carbon nanostructures are one of the most widely searched materials for use in different applications ranging from electronic to biomedical because of their exceptional physical and chemical properties. However, BN nanostructures surpassed the attention of the carbon-based nanostructure because of their enhanced thermal and chemical stabilities in addition to structural similarity with the carbon nanomaterials. Among these nanostructures, one dimensional-BN nanostructures are on the verge of development as new materials to fulfill some necessities for different application areas based on their excellent and unique properties including their tunable surface and bandgap, electronic, optical, mechanical, thermal and chemical stability. Synthesis of high quality boron nitride nanotubes (BNNTs) in large quantities with novel techniques provided greater access, and increased their potential use in nanocomposites, biomedical fields and nanodevices as well as hydrogen uptake applications. In this review, properties and applications of one-dimensional BN (1D) nanotubes, nanofibers and nanorods in hydrogen uptake, biomedical field and nanodevices are discussed in depth. Additionally, research on native and modified forms of BNNTs and also their composites with different materials to further improve electronic, optical, structural, mechanical, chemical and biological properties are also reviewed. BNNTs find many applications in different areas, however, they still need to be further studied for improving the synthesis methods and finding new possible future applications.

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The piezoelectric and dielectric properties of flexible, nanoporous, self-assembled boron nitride nanotube thin films

Cited by 14 publications

References 42 publications

Solvent-Free Nonthermal Destruction of PFAS Chemicals and PFAS in Sediment by Piezoelectric Ball Milling

Solvent-Free Nonthermal Destruction of PFAS Chemicals and PFAS in Sediment by Piezoelectric Ball Milling

Tunable Piezoelectricity of Multifunctional Boron Nitride Nanotube/Poly(dimethylsiloxane) Stretchable Composites

Properties and applications of boron nitride nanotubes

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