Hierarchically Structured Porous Piezoelectric Polymer Nanofibers for Energy Harvesting

被引：83

作者：

Abolhasani, Mohammad Mahdi ^{[1
,2
]}

Naebe, Minoo ^{[3
]}

Amiri, Morteza Hassanpour ^{[1
]}

Shirvanimoghaddam, Kamyar ^{[3
]}

Anwar, Saleem ^{[1
,4
]}

Michels, Jasper J. ^{[1
]}

Asadi, Kamal ^{[1
]}

机构：

[1] Max Planck Inst Polymer Res, Ackermannweg 10, D-55128 Mainz, Germany

[2] Univ Kashan, Chem Engn Dept, Kashan 8731753153, Iran

[3] Deakin Univ, Inst Frontier Mat, Carbon Nexus, Geelong, Vic 3217, Australia

[4] Natl Univ Sci & Technol, Sch Chem & Mat Engn, Sect H-12, Islamabad, Pakistan

来源：

ADVANCED SCIENCE | 2020年 / 7卷 / 13期

基金：

澳大利亚研究理事会;

关键词：

finite element simulations; nanogenerators; phase diagrams; piezoelectric nanogenerators; porous nanofibers; POLY(VINYLIDENE FLUORIDE); SEPARATION; MEMBRANES; POROSITY; PHASE; FABRICATION; MORPHOLOGY; FIGURES; FIBERS; LIQUID;

D O I：

10.1002/advs.202000517

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

Hierarchically porous piezoelectric polymer nanofibers are prepared through precise control over the thermodynamics and kinetics of liquid-liquid phase separation of nonsolvent (water) in poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) solution. Hierarchy is achieved by fabricating fibers with pores only on the surface of the fiber, or pores only inside the fiber with a closed surface, or pores that are homogeneously distributed in both the volume and surface of the nanofiber. For the fabrication of hierarchically porous nanofibers, guidelines are formulated. A detailed experimental and simulation study of the influence of different porosities on the electrical output of piezoelectric nanogenerators is presented. It is shown that bulk porosity significantly increases the power output of the comprising nanogenerator, whereas surface porosity deteriorates electrical performance. Finite element method simulations attribute the better performance to increased volumetric strain in bulk porous nanofibers.

引用

页数：9

共 46 条

[1]

Poly(vinylidene fluoride)-acrylic rubber partially miscible blends: Crystallization within conjugated phases induce dual lamellar crystalline structure [J].