AI Insight
Researchers used X-ray imaging to observe in real time how platinum catalysts oxidize during operation in hydrogen electrolysers and fuel cells. The study reveals the mechanisms behind platinum catalyst degradation under high operating loads, which has been a limiting factor in the performance and longevity of hydrogen energy systems. This direct observation of the oxidation process provides new insights into why these catalysts "wear out" prematurely during intensive use.
Why it matters
Understanding the real-time degradation mechanisms of platinum catalysts could lead to more durable and cost-effective hydrogen technologies, which are essential for renewable energy storage and the broader energy transition. Improved catalyst longevity would directly reduce the operational costs of electrolysers and fuel cells, making hydrogen energy more economically viable.
Electrolysers produce hydrogen. Fuel cells, in turn, generate electricity from hydrogen. Both technologies are considered key building blocks of the energy transition, offering well-established solutions for storing, transporting and producing renewable energy. However, there is a challenge: The platinum catalysts often used in these systems gradually lose performance under high operating loads. In a sense, they “wear out” too quickly, increasing the costs of hydrogen technologies.
Source: X-rays reveal how platinum oxidizes in real time inside hydrogen devices