ISIS Neutron and Muon Source Data Journal

Neutron Powder Diffraction Studies of Decorated Zeolites for Alkyne/Alkene Separations

Abstract: Efficient removal of alkyne impurities for the production of polymer-grade lower olefins remains an important and challenging target for many industries. We seek to develop highly stable decorated zeolites as efficient alkyne/alkene separation materials and request 3 days on WISH to study the binding sites of adsorbed hydrocarbon molecules (C2D2/C2D4/C3D4/C3D6) within two best-performing zeolites, M@FAU (M=Ni, Cu). This proposal will investigate the locations of hydrocarbon molecules, defining the preferred orientation of molecules with respect to the active Ni/Cu sites. Under ambient conditions, Ni@FAU shows exceptional adsorption of alkynes and efficient separations of acetylene/ethylene and propyne/propylene mixtures with unprecedented separation selectivities of 100 and 92, respectively. The proposed study aims to reveal the nature of this interaction.

Public release date: 20 September 2023

Principal Investigator: Professor Sihai Yang
Experimenter: Dr Jiangnan Li
Experimenter: Mr Weiyao Li
Local Contact: Dr Pascal Manuel
Experimenter: Professor Sandy Blake

DOI: 10.5286/ISIS.E.RB2010123-1

Parent DOI: 10.5286/ISIS.E.RB2010123

ISIS Experiment Number: RB2010123

Part Number: 1

Date of Experiment: 14 September 2020

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Professor Sihai Yang et al; (2020): Neutron Powder Diffraction Studies of Decorated Zeolites for Alkyne/Alkene Separations, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2010123-1

Data is released under the CC-BY-4.0 license.