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The key to reducing carbon dioxide emissions is made of metal



The key to reducing CO2 emissions is made of metal

The apparent velocities for ME catalyzed malate (v0) under NADPH, pyruvate, sodium bicarbonate and ME containing aluminum ions (red). Credit: Yutaka Amao, Osaka City University

Carbon dioxide (CO2) levels are rising and our planet is warming up. So, what shall we do? What if we used this excess CO2 as a raw material for the production of things we need ̵

1; similar to the way plants use it to produce oxygen.

This is one thing that artificial photosynthesis has set itself to do.

Artificial photosynthesis is a chemical process that mimics the natural process of photosynthesis to turn sunlight, water, and carbon dioxide into useful things like carbohydrates and oxygen. The problem is that modern technology can only produce molecules with 1 carbon atom. These molecules are too weak to be used to produce more complex materials. Standard experimental conditions were not stable enough to allow molecules with bonds of more than one carbon atom to form.

A new study at the University of Osaka found that simply adding metal ions such as aluminum and iron is enough to allow the production of malic acid, which contains four carbon atoms. The study appeared recently online at New journal of chemistry published by the Royal Society of Chemistry.

“I was surprised that the solution was found in something as common as aluminum ions,” said lead author Takeyuki Katagiri.

“Our goal is to create groups of molecules with up to 100 carbon atoms,” added supporting author Yutaka Amao. “Then we can finally explore the possibilities of using CO2 as a raw material. ”


Format dehydrogenase reduces carbon dioxide to formic acid


More information:
Takayuki Katagiri et al. Trivalent metal ions promote the enzyme-catalyzed formation of carbon-carbon bonds from CO2 and pyruvate, New journal of chemistry (2020). DOI: 10.1039 / D0NJ03449E

Provided by Osaka City University

Quote: The key to reducing carbon emissions is made of metal (2020, September 29), extracted on September 30, 2020 from https://phys.org/news/2020-09-key-lowering-carbon- dioxide-emissions.html

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