A self-powered flexibly-arranged gas monitoring system with evaporating rainwater as fuel for building atmosphere big data

A water-evaporation-induced self-charging hybrid power unit for application in the Internet of Things

“…S10 online). Thus, the hydroxide ions in the water flow were repelled, resulting in excess hydronium ions carried by the water flow uphill [32][33][34][35]. This process resulted in a streaming current and created a higher potential at the top electrode.…”

“…Most recently, a new water-evaporationinduced nanogenerator has been reported [32,33]. Through the coupling effect between streaming potential and a natural water evaporation process on the surface of nano-carbon films, the nanogenerator can efficiently harvest environmental thermal and mechanical energy [34][35][36]. Considering the abundance of water on the earth, the water-evaporation-induced nanogenerator is an ideal power source for integrating with electronic devices in the IoT.…”

Rational Design of MOF‐Based Hybrid Nanomaterials for Directly Harvesting Electric Energy from Water Evaporation

“…It has been recently found that the natural water evaporation can generate a continuous output of electric energy on a porous carbon black film. [ 6 ] However, this research field is still at infancy stage, and only a few materials, including carbon‐based materials [ 6–12 ] and several metal oxides (hydroxides), [ 13–16 ] have been demonstrated to show such capability. Therefore, it is highly desired to further develop other suitable materials in this emerging field of clean energy harvesting.…”

Electrostatic self-assembly enabled flexible paper-based humidity sensor with high sensitivity and superior durability

“…In recent years, with the rapid growth of intelligent technology such as the internet of things and human-machine interface, a variety of devices have been developed for air quality monitoring [1] , [2] , [3] , [4] , disease screening and diagnosis [5] , [6] , [7] , [8] , human motion detecting [9] , [10] , [11] , and so on. Humidity is one of the essential indexes of air, which is important for industrial and agricultural production and our daily life.…”