New material can generate hydrogen from salt and polluted water

EurekAlert  July 21, 2020
Researchers in Czech Republic developed a three-layer structure with a lower layer made of a thin film of gold, the second one made of 10-nanometer platinum, and the third a film of metal-organic frameworks of chromium compounds and organic molecules. The total thickness is 1-micrometer. The material was watered and sealed in a container. Infrared light caused the excitation of plasmon resonance on the sample surface. Hot electrons generated on the gold film were transferred to the platinum layer. They initiated the reduction of protons at the interface with the organic layer. Periodic gas samples were taken to determine the amount of hydrogen produced. The MOF filtering impurities purifying water without depositing impurities to the metal layer. The device generates hydrogen from fresh, salt, and polluted water. The material shows absorption in the visible spectrum, but its efficiency is slightly lower than in the infrared spectrum…read more. TECHNICAL ARTICLE
Tags: Alternate energy, Energy, Hydrogen generation,


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