Piezoelectric sensor design of graphite-aluminium with dynamic surface interaction method as an environmental technology

Abstract

Abstract Today, graphite is a phenomenal material as an environmentally friendly technology in alternative piezoelectric. Graphite materials with electrical conductivity as electrodes have been widely applied in lithium batteries to support electricity with zero-emissions. Many previous studies used graphene electrodes to harvest electrical energy from raindrops colliding on the electrodes. The voltage generated by the impulse of raindrops on the electrodes is about 129 microvolts. Limitations may arise from rain power generation; namely, the space for system installation is proportional to the amount of power generated. Therefore, electrical power is able to generate using immersing the electrodes into seawater. This type of power generation overcomes the space problem as they can be stacked vertically producing a piezoelectric effect. This study aims to design a piezoelectric sensor of graphite and aluminium reacted to seawater after being subjected to pressure. The experimental results show that the increase in graphite composition greatly affects the voltage results and the composition of seawater will decrease the voltage. Voltage arranged in series from the piezoelectric sensor contributes an increase in voltage about twice the voltage of the unit voltage.