Leicester, England – A groundbreaking recycling technique using soundwaves could transform fuel cell technology and help reduce dangerous environmental pollutants.

Scientists at the University of Leicester developed a method to separate valuable materials from fuel cells in seconds. This method uses soundwaves and solvents to recover precious metals and membranes known as PFAS, or “forever chemicals.”

PFAS are harmful substances that can contaminate drinking water and pose serious health risks. They are found in the membranes of fuel cells and have been difficult to remove during recycling.

The research team created a scalable process using organic solvent soaking and ultrasound in water to split apart catalyst-coated membranes. This allows recovery of both the precious platinum group metals and the fluorinated membranes without harsh chemicals.

Dr. Jake Yang from the University of Leicester said the new method could revolutionize recycling. He added that it brings clean energy technologies like fuel cells closer to widespread use by lowering the cost through reuse of materials.

A follow-up study introduced a continuous process using a special ultrasound blade. This blade creates collapsing bubbles that separate materials at room temperature within seconds.

The project was conducted in partnership with Johnson Matthey, a leader in sustainable technologies. Their Principal Research Scientist, Ross Gordon, called the technique a “game-changer” for the future of hydrogen energy.

As fuel cell use increases, this innovation supports a circular economy and a greener future by solving both economic and environmental challenges.

Podcast: Play in new window | Download