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    Methane Hydrates: Nucleation in Microporous Materials

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    Type
    Article
    Authors
    Andres-Garcia, Eduardo cc
    Dikhtiarenko, Alla
    Fauth, Francois
    Silvestre-Albero, Joaquin cc
    Ramos-Fernández, Enrique V.
    Gascon, Jorge cc
    Corma, Avelino
    Kapteijn, Freek cc
    KAUST Department
    Chemical Engineering Program
    KAUST Catalysis Center (KCC)
    Physical Science and Engineering (PSE) Division
    Date
    2018-11-29
    Online Publication Date
    2018-11-29
    Print Publication Date
    2019-03
    Permanent link to this record
    http://hdl.handle.net/10754/630164
    
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    Abstract
    Clathrates are well-known compounds whose low thermal stability makes them extremely rare and appreciated. Although their formation mechanism is still surrounded by many uncertainties, these ice-like structures have the potential to be an alternative for transport and storage of different gases, especially methane. For the formation of methane clathrates extreme pressure conditions and a narrow temperature window are needed. Microporous materials have been proposed to provide nucleation sites that, theoretically, promote clathrate formation at milder conditions. While activated carbons and Metal-Organic Frameworks (MOFs) have already been studied, very little is known about the role of zeolites in this field. In this work, we study the formation of methane clathrates in the presence of RHO zeolite. Experimental results based on adsorption and operando synchrotron X-Ray diffraction demonstrate the formation of clathrates at the surface of the zeolite crystals and reveal mechanistic aspects of this formation at mild conditions.
    Citation
    Andres-Garcia E, Dikhtiarenko A, Fauth F, Silvestre-Albero J, Ramos-Fernández EV, et al. (2018) Methane Hydrates: Nucleation in Microporous Materials. Chemical Engineering Journal. Available: http://dx.doi.org/10.1016/j.cej.2018.11.216.
    Sponsors
    ITQ belongs to University of Valencia (UPV) and to the Superior Council of Scientific Investigations (CSIC - Consejo Superior de Investigaciones Científicas), also located in the UPV Campus. Financial support from Generalitat Valenciana (project PROMETEOII/2014/004) and MINECO (Project MAT2013-45008-P) is gratefully acknowledged. EVRF also thanks MINECO for his Ramon y Cajal fellow RYC-2012-11427 and the following projects: MAT2016-81732-ERC and MAT2017-86992-R. Alba synchrotron is also acknowledged for the experiment 2016021678.
    Publisher
    Elsevier BV
    Journal
    Chemical Engineering Journal
    DOI
    10.1016/j.cej.2018.11.216
    Additional Links
    https://www.sciencedirect.com/science/article/pii/S1385894718324501
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.cej.2018.11.216
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Chemical Engineering Program; KAUST Catalysis Center (KCC)

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