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Multiscale investigation of adsorption properties of novel 3D printed UTSA-16 structures

Grande, CA; Blom, R; Middelkoop, V; Matras, D; Vamvakeros, A; Jacques, SDM; Beale, AM; ... Bouzga, AM; + view all (2020) Multiscale investigation of adsorption properties of novel 3D printed UTSA-16 structures. Chemical Engineering Journal , 402 , Article 126166. 10.1016/j.cej.2020.126166. Green open access

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Abstract

Structuring MOF materials is a fundamental step towards their commercialization. Herein we report intensive characterization of 3D-printed UTSA-16 monoliths, facilitated by the development of a new non-aqueous ink formulation, employing hydroxypropyl cellulose and boehmite to adjust the rheology of the ink. What makes this formulation and printing process different from the printed adsorbents and catalysts published previously, is that the resulting structures in this work were not sintered. The presence of the binder matrix not only produced the physical properties for printability but also ensured a homogeneous dispersion of UTSA-16 in the structures, as well as gas adsorption characteristics. The monoliths were tested for the adsorption of different gases (N_{2}, CH_{4}, CO_{2} and H_{2}O) in order to apply them into separation processes that contribute to defossilizing energy and fuels production. Water is strongly adsorbed in this material (~14 mol/kg at 293 K) and is competing with CO_{2} or adsorption sites. Breakthrough curves showed that the retention time of CO_{2} decreases significantly when the feed stream is saturated with water. In this study, synchrotron XRD-CT data were collected in situ, in a non-destructive way, and phase distribution maps were reconstructed to, for the first time, gain insight into the spatial and temporal evolution of the UTSA-16 containing phases in the operating 3D printed monolith during the exposure to CO_{2}.

Type: Article
Title: Multiscale investigation of adsorption properties of novel 3D printed UTSA-16 structures
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.cej.2020.126166
Publisher version: https://doi.org/10.1016/j.cej.2020.126166
Language: English
Additional information: © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Keywords: Carbon dioxide, Water adsorption, Direct write 3D printing, Shaping, In situ operando XRD-CT
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery.ucl.ac.uk/id/eprint/10105663
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