López-Olvera Alfredo, Zárate J Antonio, Obeso Juan L, Sánchez-González Elí, de Los Reyes José Antonio, Peralta Ricardo A, González-Zamora Eduardo, Ibarra Ilich A
Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Del Coyoacán, 04510 México D.F., México.
Department of Materials and Environmental Chemistry, Stockholm University, Stockholm 106 91, Sweden.
Inorg Chem. 2023 Dec 25;62(51):20901-20905. doi: 10.1021/acs.inorgchem.3c03179. Epub 2023 Dec 12.
Not only is excellent performance in SO capture by porous materials (uptake above 17 mmol g) relevant, but also finding a correlation between the architecture changes into a family and their SO adsorption is very useful. In this contribution, we studied the SO adsorption behavior (at very low pressure) of an Al(III)-MOF family that shares the pore architecture of MIL-53. The results indicate an inversely proportional trend for the SO capture and pore expansion, since by increasing the length of the channel pore, the SO uptake gradually decreases. In addition, this trend is clearly observed in the heat of adsorption, which describes the interaction between the SO molecule and the μ-OH functional group. These finding are supported by experimental analysis and computational studies.
