Probing Contact Electrification between Gas and Solid Surface

Contact electrification exists everywhere and between every phase of matter. However, its mechanism still remains to be studied. The recent triboelectric nanogenerator serves as a probe provides some new clues about the present in solid–solid, solid–liquid, liquid–liquid contact electrification. gas–solid model exploited. Here, we investigated gases solids based on single-electrode nanogenerator. Our work shows that amount transferred charges gas solid particles increases with surface area, movement distance, initial particle increase. Furthermore, find can attract more polar molecules enhance collisions. Since ions are rare, speculate is mainly electron transfer. Further, propose theoretical involving collision particle. study may have great significance interface chemistry.