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A Data-Science Approach to Predict the Heat Capacity of Nanoporous Materials

The heat capacity of a material is a fundamental property that is of great practical importance. For example, in a carbon capture process, the heat required to regenerate a solid sorbent is directly related to the heat capacity of the material. However, for most materials suitable for carbon capture...

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Detalles Bibliográficos
Autores principales: Moosavi, Seyed Mohamad, Novotny, Balázs Álmos, Ongari, Daniele, Moubarak, Elias, Asgari, Mehrdad, Kadioglu, Özge, Charalambous, Charithea, Ortega-Guerrero, Andres, Farmahini, Amir H., Sarkisov, Lev, Garcia, Susana, Noé, Frank, Smit, Berend
Formato: Online Artículo Texto
Lenguaje:English
Publicado: 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7613869/
https://www.ncbi.nlm.nih.gov/pubmed/36229651
http://dx.doi.org/10.1038/s41563-022-01374-3
Descripción
Sumario:The heat capacity of a material is a fundamental property that is of great practical importance. For example, in a carbon capture process, the heat required to regenerate a solid sorbent is directly related to the heat capacity of the material. However, for most materials suitable for carbon capture applications the heat capacity is not known, and thus the standard procedure is to assume the same value for all materials. In this work, we developed a machine-learning approach, trained on density functional theory simulations, to accurately predict the heat capacity of these materials, i.e., zeolites, metal-organic frameworks, and covalent-organic frameworks. The accuracy of our prediction is confirmed with experimental data. Finally, for a temperature swing adsorption process that captures carbon from the flue gas of a coal-fired power plant, we show that for some materials the heat requirement is reduced by as much as a factor of two using the correct heat capacity.