UM
High-energy-density polymer nanocomposites composed of newly structured one-dimensional BaTiO3@Al2O3 nanofibers
Pan Z.; Yao L.; Zhai J.; Fu D.; Shen B.; Wang H.
2017
Source PublicationACS Applied Materials and Interfaces
ISSN19448244
Volume9Issue:4Pages:4024
AbstractFlexible electrostatic capacitors are potentially applicable in modern electrical and electric power systems. In this study, flexible nanocomposites containing newly structured one-dimensional (1D) BaTiO3@Al2O3 nanofibers (BT@ AO NFs) and the ferroelectric polymer poly(vinylidene fluoride) (PVDF) matrix were prepared and systematically studied. The 1D BT@AO NFs, where BaTiO3 nanoparticles (BT NPs) were embedded and homogeneously dispersed into the AO nanofibers, were successfully synthesized via an improved electrospinning technique. The additional AO layer, which has moderating dielectric constant, was introduced between BT NPs and PVDF matrixes. To improve the compatibility and distributional homogeneity of the nanofiller/matrix, dopamine was coated onto the nanofiller. The results show that the energy density due to high dielectric polarization is about 10.58 J cm-3 at 420 MV m-1 and the fast charge.discharge time is 0.126 μs of 3.6 vol % BT@AO-DA NFs/PVDF nanocomposite. A finite element simulation of the electric-field and electric current density distribution revealed that the novel-structured 1D BT@AO-DA NFs significantly improved the dielectric performance of the nanocomposites. The large extractable energy density and high dielectric breakdown strength suggest the potential applications of the BT@AO-DA NFs/PVDF nanocomposite films in electrostatic capacitors and embedded devices. © 2017 American Chemical Society.
KeywordBaTiO3 nanoparticles Capacitors Dielectric properties Energy density Nanocomposites One-dimensional
DOI10.1021/acsami.6b13663
URLView the original
Language英语
The Source to ArticleScopus
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Cited Times [WOS]:83   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
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GB/T 7714
Pan Z.,Yao L.,Zhai J.,et al. High-energy-density polymer nanocomposites composed of newly structured one-dimensional BaTiO3@Al2O3 nanofibers[J]. ACS Applied Materials and Interfaces,2017,9(4):4024.
APA Pan Z.,Yao L.,Zhai J.,Fu D.,Shen B.,&Wang H..(2017).High-energy-density polymer nanocomposites composed of newly structured one-dimensional BaTiO3@Al2O3 nanofibers.ACS Applied Materials and Interfaces,9(4),4024.
MLA Pan Z.,et al."High-energy-density polymer nanocomposites composed of newly structured one-dimensional BaTiO3@Al2O3 nanofibers".ACS Applied Materials and Interfaces 9.4(2017):4024.
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