Group 1 - The research team from the University of Leicester has developed an efficient method using acoustic technology to separate materials, enabling effective recovery of fuel cells and extraction of precious metals while preventing harmful chemicals from entering the environment, thus providing a new pathway for sustainable development in clean energy [1] - Fuel cells and electrolyzers are crucial components of hydrogen energy systems, widely used in transportation such as cars, trains, and buses, with catalyst-coated membranes (CCM) containing expensive platinum group metals and fluoropolymer membranes (PFAS) that are difficult to degrade and can contaminate drinking water if not handled properly [1] - Traditional recycling methods struggle to efficiently separate PFAS membranes from CCM due to their strong adhesion, limiting the circular use of fuel cells, prompting researchers to propose an innovative recovery strategy involving organic solvent soaking followed by water ultrasonic treatment to effectively detach PFAS membranes from precious metals [1] Group 2 - The research team has further developed a continuous layered process using a custom blade-type ultrasonic generator that creates tiny bubbles under high-frequency ultrasound, which can release precious catalysts from materials within seconds at room temperature, making the process energy-efficient and environmentally friendly [2] - This innovation not only enhances recovery efficiency but also lays the foundation for large-scale industrial applications, with the potential to be utilized in the hydrogen energy industry for sustainable resource management and environmentally friendly processing, contributing to the establishment of a truly green energy system [2]