Scientists have pulled off a rare feat of watching platinum crystals grow inside liquid metal in real time, a process that has remained elusive to researchers for decades.

The breakthrough offers a striking window into how delicate metallic structures take shape under extreme conditions.

More importantly, it opens a path to designing new materials that could advance hydrogen production and support emerging quantum technologies.

 The work, led by the University of Sydney, used platinum crystals grown inside gallium to build an electrode capable of efficiently splitting water to generate hydrogen.

The ability to make and tune such crystals could help unlock cleaner, more scalable hydrogen systems.

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