Using inelastic neutron scattering spectroscopy to probe CO binding in grafted aminosilanes

While a range of in situ characterisation techniques are available to probe CO 2 adsorption processes, inelastic neutron scattering is scarcely used, primarily due to the reliance on hydrogeneous modes. Materials capable of adsorbing CO 2 , such as solid supported-amines contain a range of C-H and N...

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Published in:Physical chemistry chemical physics : PCCP 2024-10, Vol.26 (4), p.25969-25976
Main Authors: Potter, Matthew E, Cavaye, Hamish, Le Brocq, Joshua J. M, Daemen, Luke L, Cheng, Yongqiang
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Summary:While a range of in situ characterisation techniques are available to probe CO 2 adsorption processes, inelastic neutron scattering is scarcely used, primarily due to the reliance on hydrogeneous modes. Materials capable of adsorbing CO 2 , such as solid supported-amines contain a range of C-H and N-H species, which can be probed to explore the adsorption of CO 2 . Here we show the benefits of using inelastic neutron spectroscopy to probe CO 2 adsorption with solid supported-amines, and the complementarity that can be achieved using different world-leading spectrometers. A combination of world-leading inelastic neutron scattering spectrometers have been used to probe CO 2 adsorption on aminosilane systems, allowing for greater detail in different energy ranges, and observing faster transitions.
ISSN:1463-9076
1463-9084
DOI:10.1039/d4cp02316a