Researchers at the University of Groningen in the Netherlands have developed a more energy-efficient cooling method for liquefying hydrogen, which could lead to broader use of hydrogen in powering airplanes or cars. Published in the Nature Communications journal, the study details the use of magnetocaloric materials to cool hydrogen without the need for rare-earth materials, making the process more environmentally friendly and cost-effective.
Traditional methods of cooling hydrogen to liquefy it require energy-intensive processes and polluting refrigerant gases. The new method developed by the researchers involves using magnetic refrigeration and magnetocaloric materials to transfer heat from the materials to a heat sink with the use of a magnetic field. This innovative approach could reduce both costs and environmental impact.
Hydrogen has long been seen as a clean energy source that emits only water vapor and steam when burned, making it an attractive option for reducing pollution and combating climate change. With the rising interest in hydrogen-powered vehicles and other applications, finding efficient ways to produce and store hydrogen is crucial for its widespread adoption.
The researchers believe that further improvements can be made to their cooling method by incorporating transition metals with larger magnetic moments. As the world shifts towards cleaner energy sources, developments like these are key to unlocking the full potential of hydrogen technology. Subscribe to their newsletter for the latest updates on innovations in clean energy and sustainability.
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