27/07/2020

New material can generate hydrogen from salt and polluted water

Scientists of Tomsk Polytechnic University jointly with teams from the University of Chemistry and Technology, Prague and Jan Evangelista Purkyne University in Ústí nad Labem have developed a new 2-D material to produce hydrogen. The developed material is a three-layer structure with a 1-micrometer thickness. The lower layer is a thin film of gold, the second one is made of 10-nanometer platinum, and the third is a film of metal-organic frameworks of chromium compounds and organic molecules. The material efficiently generates hydrogen molecules from fresh, salt, and polluted water by exposure to sunlight.

Experiments have demonstrated that 100 square centimeters of the material can generate 0.5 liters of hydrogen in an hour. It is one of the highest rates recorded for 2-D materials. In the future, scientists hope to improve the material to make it efficient for both infrared and visible spectra.

The results are published in ACS Applied Materials & Interfaces.

Read More: https://phys.org/news/2020-07-material-hydrogen-salt-polluted.html

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