Artificial Leaf Successfully Produces Clean Syngas

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psk836
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Artificial Leaf Successfully Produces Clean Syngas

Post by psk836 » Fri Oct 25, 2019 1:15 pm

https://techxplore.com/news/2019-10-art ... y-gas.html

"On the artificial leaf, two light absorbers, similar to the molecules in plants that harvest sunlight, are combined with a catalyst made from the naturally abundant element cobalt.

When the device is immersed in water, one light absorber uses the catalyst to produce oxygen. The other carries out the chemical reaction that reduces carbon dioxide and water into carbon monoxide and hydrogen, forming the syngas mixture."

"As an added bonus, the researchers discovered that their light absorbers work even under the low levels of sunlight on a rainy or overcast day.

"This means you are not limited to using this technology just in warm countries, or only operating the process during the summer months," said Ph.D. student Virgil Andrei, first author of the paper. "You could use it from dawn until dusk, anywhere in the world."'

"Syngas is already used as a building block in the production of liquid fuels. "What we'd like to do next, instead of first making syngas and then converting it into liquid fuel, is to make the liquid fuel in one step from carbon dioxide and water," said Reisner, who is also a Fellow of St John's College.

Although great advances are being made in generating electricity from renewable energy sources such as wind power and photovoltaics, Reisner says the development of synthetic petrol is vital, as electricity can currently only satisfy about 25% of our total global energy demand. "There is a major demand for liquid fuels to power heavy transport, shipping and aviation sustainably," he said.

"We are aiming at sustainably creating products such as ethanol, which can readily be used as a fuel," said Andrei. "It's challenging to produce it in one step from sunlight using the carbon dioxide reduction reaction. But we are confident that we are going in the right direction, and that we have the right catalysts, so we believe we will be able to produce a device that can demonstrate this process in the near future."'
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Evil
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Re: Artificial Leaf Successfully Produces Clean Syngas

Post by Evil » Fri Oct 25, 2019 5:06 pm

"The research was carried out in the Christian Doppler Laboratory for Sustainable SynGas Chemistry in the University's Department of Chemistry. It was co-funded by the Austrian government and the Austrian petrochemical company OMV, which is looking for ways to make its business more sustainable."

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nolaxride
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Re: Artificial Leaf Successfully Produces Clean Syngas

Post by nolaxride » Sat Oct 26, 2019 9:20 am

It's an interesting idea that's been around for a while. The issue is always producing at scale.
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Shred
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Re: Artificial Leaf Successfully Produces Clean Syngas

Post by Shred » Mon Nov 04, 2019 12:37 pm

That's pretty clever.
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