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High energy density in PVDF nanocomposites using an optimized nanowire array

Abstract

TiO2 nanowire arrays are often utilized to prepare high performance polymer nanocomposites, however, the contribution to energy density is limited due to its non-ferroelectric characteristic. Nanocomposite with an optimized nanowire array combining the ferroelectric properties of lead zirconate titanate (PZT) with TiO2 (denoted as TiO2-P nanowire arrays) to readily form nanowires is prepared to enhance its permittivity. Poly(vinylidene fluoride) (PVDF) is used as the polymer matrix due to its high breakdown strength, e.g. 600~700 kV/mm. As results, the permittivity and breakdown electric field reach to 53 at 1 kHz and 550 kV/mm, respectively. Therefore, the nanocomposites achieve a higher discharge energy density of 12.4 J/cm3 with excellent cycle stability, which is the highest among the nanocomposites based on the nanowire array as filler in PVDF matrix. This work provides not only a feasible approach to obtain a high performance dielectric nanocomposites, but also a wide range of potential applications in energy storage and energy harvesting field.

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Publication details

The article was accepted on 11 Jun 2018 and first published on 14 Jun 2018


Article type: Paper
DOI: 10.1039/C8CP02958J
Citation: Phys. Chem. Chem. Phys., 2018, Accepted Manuscript
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    High energy density in PVDF nanocomposites using an optimized nanowire array

    R. Guo, H. Luo, W. Liu, X. Zhou, L. Tang, K. Zhou and D. Zhang, Phys. Chem. Chem. Phys., 2018, Accepted Manuscript , DOI: 10.1039/C8CP02958J

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