(Invited) Novel Fuel Production Based on Sonochemistry and Sonoelectrochemistry

Abstract

Sonochemistry has been used in many applications where it is employed to improve both catalytic and synthetic processes; whereas, sonoelectrochemistry has been used in various studies including organic syntheses, environmental (soil and water) treatments, water disinfection and various analytical procedures. In the ongoing energy transition from a fossil-based energy economy, society requires energy forms that can be readily stored and transported. This can be achieved using rechargeable batteries, biofuels and hydrogen. Hydrogen (H2) is an attractive fuel source due to its rather high specific energy compared to other conventional fuels. Power ultrasound could be an attractive alternative since the ultrasonication of water produces H2. Alternatively, biogas production could be another fuel source. However, lignocellulose presents a bottleneck due to its’ rigid and obstinate structure. Power ultrasound could be adopted as a pretreatment of lignocellulosic materials to improve their utilisation in the production of biogas.