The world’s fastest hydrogen sensor, is being claimed by Chalmers University in Sweden, which can detect 0.1% hydrogen in air in less than a second. It consists of millions of palladium-gold alloy nano-particles – a material which is known for its sponge-like ability to absorb large amounts of hydrogen. The plasmon phenomenon then causes the sensor ...
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from Electronics Weekly https://www.electronicsweekly.com/news/research-news/plasmonic-hydrogen-sensor-rebuffs-poisoning-gasses-2019-04/
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