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A new method for making a photocatalytic mineral from carbon has been created by researchers at the University of Illinois at Urbana-Champaign.
The researchers found that the photocatalysts used in the method are able to convert carbon dioxide into Iridium carbonate, a compound that is a naturally occurring metal.
They report their results in the journal Advanced Materials.
For the method, the researchers used a process called photocatalysis to convert Iridium into Iridium carbonate.
Using this method, a carbon-containing element called carbon could be substituted for a carbon atom in an existing compound, as long as it was already present in a compound containing a metal.
The scientists found that using carbon in a photovoltaic device produces a photocatacant that is able to turn carbon dioxide gas into Iride carbonate that is then used as a catalyst in a reaction.
“The material we used as catalyst was the carbon that we use in many solar cells,” said Shigeo Nagasawa, an assistant professor of chemical and biomolecular engineering and of materials science and engineering and one of the lead authors of the paper.
“This allowed us to convert the carbon into Iridian carbonate with a very low cost.
This material is very efficient in converting carbon dioxide, and we found that it is very good at producing Iride in a high yield.
It also is able of generating Iride.”
The researchers have used the photocats to make Iridium photocats that convert Iride into Iridine carbonate and Iridium, and also used the method to make a variety of other photocatasts.
The new photocatetric technique was a collaboration between the U.S. Department of Energy’s Lawrence Berkeley National Laboratory and Argonne National Laboratory.
In the new paper, the scientists also describe a process they call “Cavitation” to convert CO 2 into Irides, and then produce Iride from CO 2 .
This process was first described in 2013 in a paper titled “Photocatalysis of CO 2 as a C-Catalyzed Photovoltaics,” and is similar to the way that CO 2 is produced from natural sources.
The process involves capturing CO 2 gas and adding it to a solvent to convert it into CO.
When the CO 2 and the solvent are combined, the CO-2 is converted to a chemical compound called iridyl, which then reacts with an existing metal to form Iridium.
This process, known as Iridyl photocatolysis, was first demonstrated in 2013, and the researchers showed it was able to produce Irides from CO- 2 , Iridium-6 and Iridine-6 carbonate at a rate of about 1% per year, according to the paper’s abstract.
They also show that the process can be scaled up to produce much higher yields of Iride-6.
The new method was based on a series of experiments that used a variety on the photocattases.
Nagasawa said that, while they did not have the opportunity to experiment with the process in practice, it was possible to convert a wide range of compounds to Irides using the method.
“In some of the compounds that we tested, we were able to make more than 90% of the Irides,” he said.
“In other cases, it is more like a little bit less than 50% of Irides.
We are still working on optimizing the process to make it more efficient and more powerful.”
“This is the first time that we’ve been able to create photocatatic Irides with Iridium,” Nagasaw added.
Explore further: Researchers create photocattaches for converting CO2 to Iridium