Characterization of Materials for Direct Air Capture Applications
Direct air capture is becoming more and more critical in today’s world of rising levels of CO2 in the atmosphere. There has been increasing interest in removing CO2 from the atmosphere directly at any location, rather than straight at the point source. One strategy for CO2 removal is to use solid porous materials to adsorb, either physically or chemically, the CO2.
In order to understand an adsorbents ability to capture CO2, the material’s structural properties, including surface area and pore size and volume, must be determined. Gas adsorption is well-suited for this characterization and the choice of adsorptive for characterization, as well as the state-of-the-art data reduction methods will be presented.
Finally, gas adsorption can also be used to study a material’s ability to adsorb CO2, as well as other competing molecules such as water, at the low pressures, and sometimes low temperatures, that are applicable to direct air capture. Examples of CO2 and water isotherms at these relevant conditions will be presented.
Dr. Struckhoff, Anton Paar QuantaTec’s head of applications, has more than 10 years of experience in powder and porous materials characterization. Dr. Struckhoff graduated from the University of Michigan with a PhD in materials chemistry. She is the author on 30 scientific publications in the porous materials field, has presented at major conferences around the world, and advises researchers daily in experimental design and data interpretation.
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