Abstract
Triboelectric nanogenerators (TENGs) as a revolutionary system for harvesting mechanical energy have demonstrated high vitality and great advantage, which open up great prospects for their application in various areas of the society of the future. The past few years have seen exponential growth in many new classes of self-healing polymers (SHPs) for TENGs. This review presents and evaluates the SHP range for TENGs, and also attempts to assess the impact of modern polymer chemistry on the development of advanced materials for TENGs. Among the most widely used SHPs for TENGs, the analysis of non-covalent (hydrogen bond, metal–ligand bond), covalent (imine bond, disulfide bond, borate bond) and multiple bond-based SHPs in TENGs has been performed. Particular attention is paid to the use of SHPs with shape memory as components of TENGs. Finally, the problems and prospects for the development of SHPs for TENGs are outlined.
Highlights
The rapid growth in global energy consumption is leading to the overuse of fossil fuels, which greatly exacerbates the world’s energy and environmental problems
Work on solving important problems in the field of self-healing polymers (SHPs) for triboelectric nanogenerators (TENGs) will require the cooperation of scientists from different areas, and all of them are aimed at the development of new advanced technologies that contribute to solving global problems of green energy
TENGs represent an advanced system for harvesting mechanical energy, which has allowed them to demonstrate high vitality and enormous advantages, creating great prospects for their use in various fields of human activity
Summary
The rapid growth in global energy consumption is leading to the overuse of fossil fuels, which greatly exacerbates the world’s energy and environmental problems. While significant progress has been made in the field of extrinsic SHPs, there are still drawbacks, including the tedious manufacturing process and limited healing cycles If these complex SHPs are to be introduced into TENGs, the effect on the electrochemical performance and mechanical properties of TENGs is still unknown. Unlike extrinsic SHPs, intrinsic SHPs are characterized by the functionalization of the polymer by various self-healing groups and multi-time reversible healing Another advantage of using the intrinsic polymer is the fast healing due to the absence of diffusion and polymerization control steps, which is a decisive factor in their use in wearable devices, where it is necessary to avoid signal interruption due to damage as much as possible. Work on solving important problems in the field of SHPs for TENGs will require the cooperation of scientists from different areas (chemists, materials scientists, bioengineers and physicists), and all of them are aimed at the development of new advanced technologies that contribute to solving global problems of green energy
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