Triboelectric Nanogenerators Powered Hydrogen Production System Using MoS2/Ti3C2 as Catalysts

Abstract Hydrogen energy is an alternative to carbon‐based fuels due to its zero pollution and high energy density. The electrolysis of water, driven by triboelectric nanogenerators (TENGs), is considered as a promising green method for hydrogen production. 2D transition metal carbides/nitrides can be used as catalyst carriers, through interface engineering to prepare molybdenum disulfide/titanium dioxide (MoS 2 /Ti 3 C 2 ) composites for accelerating the kinetics of hydrogen evolution reaction (HER). In this work, a multilayered rotating TENG (MR‐TENG) is designed to convert rotating mechanical energy into electrical energy for constructing a self‐powered hydrogen production system. MoS 2 /Ti 3 C 2 composites are utilized as electrodes for electrolyzing water, which can enhance the catalytic activity in the HER. The output performance of the MR‐TENG and its managed charging performance when integrating with a constant voltage power management module are investigated. Besides the application demonstrations of powering a digital thermometer, an anemometer, and a commercial incandescent lamp, the power‐managed MR‐TENG is applied to generate electricity for water electrolysis, and realize a hydrogen evolution rate of 7.1 mL min −1 at the rotation speed of 90 rpm. This work provides an effective approach to the self‐powered production of high‐purity green hydrogen based on renewable blue energy utilization with important industrial application prospects.