Magnetic Material in Triboelectric Nanogenerators: A Review

• Published in: Nanomaterials (Basel, Switzerland) Vol. 14; no. 10; p. 826
• Main Authors: Sun, Enqi, Zhu, Qiliang, Rehman, Hafeez Ur, Wu, Tong, Cao, Xia, Wang, Ning
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 08.05.2024
• Subjects: Amorphous materials; Composite materials; Electric currents; Electrodes; Energy conversion; Energy harvesting; Energy industry; Energy resources; harvest energy; Identification and classification; Injection molding; Intelligence; Internet of Things; Magnetic fields; magnetic material; Magnetic materials; Magnetic properties; Mechanical properties; Nanoalloys; Nanogenerators; Nanoparticles; Power sources; self-powered sensing; Sensors; Sliding friction; triboelectric nanogenerator; Wearable computers; China; magnetic material; triboelectric nanogenerator; self-powered sensing; harvest energy
• ISSN: 2079-4991; 2079-4991
• DOI: 10.3390/nano14100826

Nowadays, magnetic materials are also drawing considerable attention in the development of innovative energy converters such as triboelectric nanogenerators (TENGs), where the introduction of magnetic materials at the triboelectric interface not only significantly enhances the energy harvesting efficiency but also promotes TENG entry into the era of intelligence and multifunction. In this review, we begin from the basic operating principle of TENGs and then summarize the recent progress in applications of magnetic materials in the design of TENG magnetic materials by categorizing them into soft ferrites and amorphous and nanocrystalline alloys. While highlighting key role of magnetic materials in and future opportunities for improving their performance in energy conversion, we also discuss the most promising choices available today and describe emerging approaches to create even better magnetic TENGs and TENG-based sensors as far as intelligence and multifunctionality are concerned. In addition, the paper also discusses the integration of magnetic TENGs as a power source for third-party sensors and briefly explains the self-powered applications in a wide range of related fields. Finally, the paper discusses the challenges and prospects of magnetic TENGs.