Paving the way for methane hydrate formation on metal-organic frameworks (MOFs)

Chemical Science
M E CascoJ Silvestre-Albero

Abstract

The presence of a highly tunable porous structure and surface chemistry makes metal-organic framework (MOF) materials excellent candidates for artificial methane hydrate formation under mild temperature and pressure conditions (2 °C and 3-5 MPa). Experimental results using MOFs with a different pore structure and chemical nature (MIL-100 (Fe) and ZIF-8) clearly show that the water-framework interactions play a crucial role in defining the extent and nature of the gas hydrates formed. Whereas the hydrophobic MOF promotes methane hydrate formation with a high yield, the hydrophilic one does not. The formation of these methane hydrates on MOFs has been identified for the first time using inelastic neutron scattering (INS) and synchrotron X-ray powder diffraction (SXRPD). The results described in this work pave the way towards the design of new MOF structures able to promote artificial methane hydrate formation upon request (confined or non-confined) and under milder conditions than in nature.

References

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Citations

Sep 25, 2019·Research : a Science Partner Journal·Jia LiuRuqiang Zou
May 7, 2020·Frontiers in Chemistry·Jun-Li ChenEn-Bao Zou
Mar 15, 2018·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Lars BorchardtJoaquin Silvestre-Albero
Jul 15, 2016·Physical Chemistry Chemical Physics : PCCP·Lars BorchardtJoaquín Silvestre-Albero
Nov 3, 2020·Frontiers in Chemistry·Guodong ZhangFei Wang
Feb 6, 2018·Journal of the American Chemical Society·Stephen J CoxAngelos Michaelides
Nov 7, 2019·ACS Applied Materials & Interfaces·Muqing RenAlmaz S Jalilov
Jul 14, 2020·Journal of the American Chemical Society·Carlos Cuadrado-ColladosJoaquin Silvestre-Albero

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Methods Mentioned

BETA
inelastic
X-ray
thermal treatment
inelastic neutron scattering
neutron scattering

Software Mentioned

INS

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