Adsorption of 1-Propanol in the Channel-Like InOF-1 Metal-Organic Framework and Its Influence on the CO2 Capture Performances
Por:
Raziel Álvarez J., Mileo P.G.M., Sánchez-González E., Antonio Zárate J., Rodríguez-Hernández J., González-Zamora E., Maurin G., Ibarra I.A.
Publicada:
15 mar 2018
Resumen:
The n-PrOH adsorption properties of the one-dimensional-channel-like metal-organic framework InOF-1 were first explored and evidenced a high affinity for this host-guest system owing to the shape of the adsorption isotherms at a low relative pressure, the presence of a hysteresis loop during the desorption process, and a relatively high isosteric heat of adsorption. Monte Carlo simulations revealed that this thermodynamic behavior is related to a preferential interaction between n-PrOH and the µ2-OH groups of the InOF-1 surface at low loading, whereas n-PrOH self-aggregates at higher guest concentration to first form dimers and then clusters. In complement to this thermodynamic exploration, the kinetics of n-PrOH were further characterized and the mobility of the guests was shown to be slow most probably due to the formation of these guest clusters. Finally, we revealed that in contrast to other solvents we have reported in the past, the n-PrOH confinement does not enhance the CO2 capture in InOF-1. This observation was supported by grand canonical Monte Carlo simulations. Finally, we observed that the filling of the micropores of InOF-1 by CO2 inhibits the adsorption of n-PrOH, demonstrating the absence of oversolubility of n-PrOH in the presence of CO2. © 2018 American Chemical Society.
Filiaciones:
Raziel Álvarez J.:
Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Delegación Coyoacán Ciudad de México, Mexico
Mileo P.G.M.:
Institut Charles Gerhardt Montpellier, UMR-5253, Université de Montpellier, CNRS, ENSCM, Place E. Bataillon, Montpellier cedex 05, France
Sánchez-González E.:
Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Delegación Coyoacán Ciudad de México, Mexico
Antonio Zárate J.:
Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Delegación Coyoacán Ciudad de México, Mexico
Rodríguez-Hernández J.:
Departamento de Materiales Avanzados, Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna No. 140, Saltillo Coahuila, Mexico
González-Zamora E.:
Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Delegacion Iztapalapa Ciudad de Mexico, Mexico
Maurin G.:
Institut Charles Gerhardt Montpellier, UMR-5253, Université de Montpellier, CNRS, ENSCM, Place E. Bataillon, Montpellier cedex 05, France
Ibarra I.A.:
Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Delegación Coyoacán Ciudad de México, Mexico
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