Researchers Discover More Efficient Way to Split Water, Produce Hydrogen
https://ssl.uh.edu/news-events/stories/2016/09192016Water-Splitting-Hydrogen.php[font face=Serif][font size=5]Researchers Discover More Efficient Way to Split Water, Produce Hydrogen[/font]
[font size=4]Inexpensive, Nontoxic Catalyst Could Help Reduce Global Reliance on Fossil Fuels[/font]
By Jeannie Kever 713-743-0778
September 19, 2016
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A team of researchers from the University of Houston and the California Institute of Technology has reported a more efficient catalyst, using molybdenum sulfoselenide particles on three-dimensional porous nickel diselenide foam to increase catalytic activity.
The foam, made using commercially available nickel foam, significantly improved catalytic performance because it exposed more edge sites, where catalytic activity is higher than it is on flat surfaces, said Zhifeng Ren, MD Anderson Professor of physics at UH.
Molybdenum sulfoselenide and similar layered compounds have shown promise as catalysts, but so far no one has boosted their performance to viable levels in bulk form. The researchers say most active catalysis on those layered compounds, known as layered transition-metal dichalcogenides, or LTMDs, takes place at the edges, making the idea of a substrate with a large number of exposed edges more desirable. Also, they wrote, arranging two different materials into hybrids might lead to synergistic effects that utilize the best properties of each component.
Their hybrid catalyst is composed of molybdenum sulfoselenide particles with vertically aligned layers on a 3-D porous conductive nickel diselenide scaffold.
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http://dx.doi.org/10.1038/ncomms12765