Harry is a U.K.-based senior staff writer at Live Science. He studied marine biology at the University of Exeter before training to become a journalist. He covers a wide range of topics including space exploration, planetary science, space weather, climate change, animal behavior, evolution and paleontology.
For the first time, researchers have captured nanoscale video footage of hydrogen and oxygen atoms combining into water out of"thin air" — thanks to a rare metal catalyst. The super-efficient reaction, which could one day help astronauts make water in space, also produced the smallest bubble of water ever seen, researchers say.
The team induced the reaction using a special ultra-thin glassy membrane that holds gas molecules within honeycomb-shaped"nanoreactor" chambers. This means the tests can be viewed in real time using electron microscopes, enabling the researchers to learn more about how the reaction works. By submitting your information you agree to the Terms & Conditions and Privacy Policy and are aged 16 or over.The new study revealed that the gaseous atoms first squeeze between the palladium atoms, which are arranged in a square lattice. This expands the lattice and enables water droplets to form on the catalyst's surface. The team also found that the process can be sped up by adding hydrogen atoms to the palladium first, because they are smaller than oxygen atoms.
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