Speaker
Description
Understanding the kinetics and thermodynamics of the crystallization processes involved in carbon-rich materials is a critical knowledge gap that hinders a realistic assessment of the risks and benefits of potential climate-change-mitigation strategies [1]. Toward this end, we investigated the thermal and aqueous stabilities of single-phase and multi-phase mixtures of calcium carbonate and magnesian carbonate, including both laboratory-synthesized and biogenic sources. Building on earlier work from our group [2], we use a suite of materials characterization techniques (including infrared spectroscopy, differential scanning calorimetry, and thermogravimetric analyses) to track changes to the solid phases over time after thermal treatments and/or exposure to water-based solutions. Our results are framed in the context of how to design experiments that help to identify - and ultimately reduce - the uncertainties and associated risks associated with climate mitigation strategies that rely on controlling carbonate mineral formation.
[1] Basic Energy Sciences Roundtable: Foundational Science for Carbon Dioxide Removal Technologies (Brochure). United States: 2022. Web. doi:10.2172/1868525.
[2] B. Gao and K. M. Poduska. Solids 2022. 3(4) 684-696. doi: 10.3390/solids3040042.
| Keyword-1 | carbon-based materials |
|---|---|
| Keyword-2 | materials physics |
