Non-thermal plasma-chemical CO2 utilization: COx polymer formation | Conference Paper individual record

As concerns about climate change are growing carbon dioxide utilization is becoming an important idea. It is well known that carbon dioxide dissociation using a plasma process can have efficiencies reaching as high as 90%. We present here the idea that once the carbon dioxide is dissociated the carbon monoxide can be polymerized. Non-equilibrium plasma-chemistry of carbon monoxide can lead to solid carbon oxides. Using a dielectric barrier discharge (DBD) we are able to create depositions readily at atmospheric pressure conditions. Converting carbon dioxide to a solid polymer effectively fixates the carbon and may be cheaper than other methods such as sequestration. Furthermore, attractive utilizations of the polymers may be realized. Here we present some of our analysis of the solids that we have produced in our plasma. Using XPS and FTIR to analyze the solids samples we see that the polymers are similar to high-energy-density CO polymers that are typically formed at pressures around 5 GPa.

author list (cited authors)
Geiger, R., & Staack, D.
publication date
published in