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Optical Sensor Based on Plasmonics Quickly Detects Hydrogen Gas

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A new optical nanosensor could be used to quickly detect leaks when hydrogen mixes with air. Hydrogen, a clean and renewable energy carrier, is highly flammable when mixed with air. According to the research team from Chalmers University of Technology, the new sensor is the first to meet the future performance targets for use in hydrogen-powered vehicles. The nanosensor is based on an optical phenomenon, a plasmon, which occurs when metal nanoparticles are illuminated and capture visible light. The sensor contains millions of metal nanoparticles of a palladium-gold alloy, a material that...Read full article

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