A Green Electromagnetic Energy Harvester with Up-Frequency and Unidirectional Rotation for Smart Pavement.

Smart pavement is composed of a monitor network, communication network, data center, and energy supply system, and it requires reliable and efficient energy sources to power sensors and devices. The mechanical energy is wasted and dissipated as heat in traditional pavement; this energy can be reused to power low-power devices and sensors for smart pavement. Mechanical energy harvesting systems typically perform through electromagnetic, piezoelectric, and triboelectric methods.

MnO/AlO cathode material derived from a metal-organic framework with enhanced cycling performance for aqueous zinc-ion batteries.

Rechargeable aqueous zinc-ion batteries (ZIBs) are considered to be potential candidates for large-scale energy storage due to their high capacity, low cost, high safety and environmental friendliness. A key problem encountered in Mn-based cathodes is the dissolution of Mn2+ that causes significant capacity fading. Herein, a novel Mn2O3/Al2O3 composite material with a microbundle structure was synthesized using a strategy called 'MOFs as precursors'.