Materials (Apr 2020)

Bottleneck Effect Explained by Le Bail Refinements: Structure Transformation of Mg-CUK-1 by Confining H<sub>2</sub>O Molecules

  • Elí Sánchez-González,
  • J. Gabriel Flores,
  • Julio C. Flores-Reyes,
  • Ivette Morales-Salazar,
  • Roberto E. Blanco-Carapia,
  • Mónica A. Rincón-Guevara,
  • Alejandro Islas-Jácome,
  • Eduardo González-Zamora,
  • Julia Aguilar-Pliego,
  • Ilich A. Ibarra

DOI
https://doi.org/10.3390/ma13081840
Journal volume & issue
Vol. 13, no. 8
p. 1840

Abstract

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The structure transformation of Mg-CUK-1 due to the confinement of H2O molecules was investigated. Powder X-ray diffraction (PXRD) patterns were collected at different H2O loadings and the cell parameters of the H2O-loaded Mg-CUK-1 material were determined by the Le Bail strategy refinements. A bottleneck effect was observed when one hydrogen-bonded H2O molecule per unit cell (18% relative humidity (RH)) was confined within Mg-CUK-1, confirming the increase in the CO2 capture for Mg-CUK-1.

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