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Self‐Powered Sensing
In article number 2307282, Bin Li, Yejing Dai, and co‐workers report a triboelectric‐electromagnetic‐piezoelectric wind energy harvester (TEP‐WEH), which integrates the advantages of triboelectric nanogenerator, electromagnetic generator, and piezoelectric nanogenerator. With efficient harvesting of low‐frequency wind energy, TEP‐WEH enables wide‐scale distributed self‐powered...
Wind energy is the most promising alternative to fossil fuels as a clean, nonpolluting, and renewable source of energy. However, how to achieve stable and efficient harvesting of wind energy has been a major challenge. Here, a triboelectric‐electromagnetic‐piezoelectric hybrid wind energy harvester (TEP‐WEH) based on the cantilever is proposed. The TEP‐WEH achieves a power density of 62.79 mW (m3...
Hyperbranched polymer with terminal hydroxyl groups (HBPH) was grafted successfully onto carbon fiber (CFs) surface in two‐step polycondensation to improve the interfacial properties of CFs‐reinforced epoxy resin composites. The microstructure and interfacial properties of CFs before and after modification were investigated systematically. Experimental results indicated that HBPH were grafted uniformly...
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