Water can transport electrical charge surprisingly efficiently when confined to extremely narrow channels. A research team from Hamburg University of Technology, working within the Cluster of Excellence “BlueMat: Water-Driven Materials”, has now harnessed this behaviour in a novel supercapacitor. Measurements at DESY’s PETRA III X-ray light source showed that water forms films only a few molecular layers thick inside the tiny channels. This observation helped explain how the energy storage device works. The findings could open up new pathways towards sustainable energy-storage technologies in the future.
Deutsches Elektronen-Synchrotron DESY
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