Oregon State Unveils New Study Advancing DAC Technology

Oregon State Unveils New Study Advancing DAC Technology - Carbon Herald

Oregon State University researchers have made a significant stride to advance direct air capture (DAC), the technology used for capturing carbon directly from the air, with a recent study that unveils the potential of vanadium for carbon scrubbing.

Vanadium peroxide molecules display an optimal level of reactivity, making them promising candidates for binding carbon dioxide (CO2), a crucial step in enhancing technologies for atmospheric carbon removal, the university said in a statement on its website.

While carbon filtering facilities are emerging worldwide, they remain nascent, whereas technologies for mitigating carbon emissions at their source, such as power plants, are more mature.

However, scientists emphasize the importance of both approaches to mitigate the impacts of climate change effectively.

In 2021, Oregon State’s May Nyman, leading one of nine DAC projects funded by the U.S. Department of Energy (DOE), spearheaded research into transition metal complexes’ potential to remove CO2 from the air.

Relevant: New Oxford Institute Study Examines What Is Needed To Scale Direct Air Capture

Nyman’s team focused on vanadium, renowned for its visual appeal, and the study found that vanadium peroxide molecules effectively bind CO2, aided by alkali cations for charge balance.

Attempts with other metals or substituting alkali compounds yielded less favorable results.

Vanadium’s unique properties also enable the relatively low release temperature of captured CO2, offering potential energy and cost savings in carbon capture processes.

“Being able to rerelease the captured CO2 enables reuse of the carbon capture materials, and the lower the temperature required for doing that, the less energy that’s needed and the smaller the cost,” Nyman said in a comment.

The research, published in Chemical Science, involved collaboration with scientists from Pacific Northwest National Laboratory and the University of Oregon.

Nyman highlighted the contributions of her team and emphasized the challenges and opportunities in exploring new frontiers of research.

Read more: U.S. DOE Earmarks $1.3M For DAC Innovations

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