Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Neutron Diffraction Structural Study of CO2 Binding in Mixed-Metal CPM-200 Metal-Organic Frameworks

Published

Author(s)

Anthony J. Campanella, Benjamin Trump, Eric J. Gosselin, Eric D. Bloch, Craig Brown

Abstract

Metal-organic frameworks featuring open metal coordination sites have been widely studied for the separation of gas mixtures. For CO2/N2 separations, these materials have shown considerable promise. Herein, we report the characterization of a subset of the well-known PCN-250 class of frameworks upon CO2 adsorption via powder neutron diffraction methods. Noteably, in contrast to previously reported data, they display only moderate CO2 adsorption enthalpies, based on metal cation-CO2 interactions. Further, we show charge balance in these materials is likely achieved via ligand vacancies rather than the presence of υ3-OH groups in the trimetallic cluster that comprises them.
Citation
Chemical Communications
Volume
56
Issue
17

Keywords

Metal Organic Frameworks, Adsorption, Neutron Diffraction, Gas Dosing

Citation

Campanella, A. , Trump, B. , Gosselin, E. , Bloch, E. and Brown, C. (2020), Neutron Diffraction Structural Study of CO<sub>2</sub> Binding in Mixed-Metal CPM-200 Metal-Organic Frameworks, Chemical Communications, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=929201 (Accessed December 14, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created February 27, 2020, Updated October 12, 2021