Fully self-powered electrospray system via triboelectric high voltage generator and its use to control wettability of various surfaces

摘要: Electrospray ionization (ESI) process, which is one of the most widely utilized techniques to produce micro/nanoscale and uniform particles, has become an important tool in various fields owing to its advantages. However, the electrospray process has been considered to have a low degree of freedom for portability because this process conventionally requires an external power supply to high-voltage generation, which is bulky and heavy hardware. To improve the versatility and applicable area of the electrospray process, the stationary power supply with required external wiring, should be replaced in the self-powered high voltage generator. Herein, we report a fully self-powered portable electrospray system (SPES) with the high-voltage generator based on the triboelectric generator (TEG) equipped with the voltage multiplier circuit (VMC), which does not require any fixed external equipment, thereby enabling the …