Direct visualization of supramolecular binding and separation of light hydrocarbons in MFM-300(In)

DOI: 10.1021/acs.chemmater.2c01097

Authors: Lixia Guo (University of Manchester) , Mathew Savage (University of Manchester) , Joe H. Carter (University of Manchester; Diamond Light Source) , Xue Han (University of Manchester) , Ivan Da Silva (ISIS Facility) , Pascal Manuel (ISIS Facility) , Svemir Rudic (ISIS Facility) , Chiu C. Tang (Diamond Light Source) , Sihai Yang (University of Manchester) , Martin Schroeder (University of Manchester)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Chemistry Of Materials

State: Published (Approved)
Published: June 2022

Abstract: The purification of light olefins is one of the most important chemical separations globally and consumes large amounts of energy. Porous materials have the capability to improve the efficiency of this process by acting as solid, regenerable adsorbents. However, to develop translational systems, the underlying mechanisms of adsorption in porous materials must be fully understood. Herein, we report the adsorption and dynamic separation of C2 and C3 hydrocarbons in the metal–organic framework MFM-300(In), which exhibits excellent performance in the separation of mixtures of ethane/ethylene and propyne/propylene. Unusually selective adsorption of ethane over ethylene at low pressure is observed, resulting in selective retention of ethane from a mixture of ethylene/ethane, thus demonstrating its potential for a one-step purification of ethylene (purity > 99.9%). In situ neutron powder diffraction and inelastic neutron scattering reveal the preferred adsorption domains and host–guest binding dynamics of adsorption of C2 and C3 hydrocarbons in MFM-300(In).

Journal Keywords: Adsorption; Hydrocarbons; Materials; Metal organic frameworks; Mixtures

Subject Areas: Chemistry, Materials

Facility: WISH, TOSCA at ISIS

Added On: 08/06/2022 08:44

Documents:
acs.chemmater.2c01097.pdf

Discipline Tags:

Chemistry Materials Science Chemical Engineering Engineering & Technology Metal-Organic Frameworks Metallurgy Organometallic Chemistry

Technical Tags: