Review of Electrospinning in the Fabrication of Nanogenerators

Abstract

In recent years, research on nanogenerators (NGs) has shown great interest in utilizing mechanical and thermal energy that is freely and easily available in nature to meet the future needs for sustainable technologies. The macroscopic properties of NGs are determined by the multifaceted effects of surface and material properties on the nanoscale, and various fabrication and preparation strategies for surfaces and materials are required to achieve the desired nanogenerator properties. NGs prepared by spinning or electrospinning have good performance in wearable electronic sensor tables. Wearable devices prepared by electrospinning have designable breathability, stretchability, mechanical properties, and can be easily loaded with functional particles, thus enabling rich multifunctional designs and convenient wearable designs. Therefore, this paper reviews the advantages of electrospinning in the preparation of NGs and highlights the recent advances in electrospinning NGs in the fields of sensors, biomedicine, agriculture, and air filtration. In the future, electrospinning NGs can be fabricated and the ultrahigh pressure property of NGs can be utilized to design forms of electrospinning.

Advanced Applications of Porous Materials in Triboelectric Nanogenerator Self-Powered Sensors

“…Electrospinning is a versatile technique capable of producing 1D nanofibers (NFs), 2D nanofiber membranes, and complex 3D fiber structures [ 30 ]. Nanofiber membranes and 3D fiber structures prepared by electrospinning exhibit prominent features such as a high specific surface area, inherent rough structure, layered porous structure, and intrinsic porosity, which significantly enhance the surface charge density, flexibility, and breathability, making them highly suitable for frictional electric materials in TENGs [ 31 ].…”

Crumpled Nanogenerator Based on Elastic Modulus Design for Fully Self-Powered High-Speed Rail Speed Measurement

“…A crumpled structure was used to increase the response of membranes to the wind. The crumpled structure makes the film have ultrahigh stretchability and significantly improves the surface roughness, thereby enhancing the energy harvesting performance and strain sensing sensitivity of the TENG. − The surface modification of nanostructures can be made by the crumpled method to generate the crumpled morphology. Graphene is considered an ideal electrode material because of its excellent electrical conductivity.…”

Triboelectric nanogenerator based on electrospun molecular ferroelectric composite nanofibers for energy harvesting

“…To obtain a polymer matrix with high surface roughness and high surface-to-volume ratio, electrospinning is highly attractive. 30 It not only increases the contact surface, but also adjusts dipole orientations so that higher polarizability and a higher dielectric constant can be achieved. To accomplish this, herein we combine the unique advantages of electrospinning and remarkable features of an organic ferroelectric, DIPAB, to formulate an electrospun DIPAB/P(VDF-TrFE) composite film as a negative triboelectric layer.…”