(Photo: Daniel Esposito / Columbia Engineer)
A chart shows how the research team's electrolytic system works: red lines indicate that the catalyst is mounted on one side of each electrode, H2 gas bubbles form along the lateral surface. must be collected into the collection chamber, while O2 bubbles will escape from another vent.
Instead of using membranes, the Columbia system uses two grid electrodes, which are asymmetrically designed. Each pole is coated with a catalyst only on the outside, and air bubbles will be on these surfaces. H2 bubbles formed on one electrode and O2 on the other, and to obtain these gases, this device uses simple physics - in particular, they wait for the bubble to grow large enough to emerge. surface. O2 gas that floats to the surface will escape into the air, while floating H2 (Hydro) bubbles are collected into a collection chamber.
This unique electrolytic mechanism is connected to a photovoltaic cell, producing the required current with the energy obtained from sunlight on an open sensor platform. The whole system can be mounted on a floating surface.
The study is published in the International Hydrogen Energy Journal.
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