ISIS Neutron and Muon Source Data Journal

Acidity in zeolites - A MuSR perspective

Abstract: Zeolites are microporous materials that are used as heterogeneous acid catalysts in reactions. It is important to study reactive intermediates in zeolites in order to understand the catalytic reactions in these important materials. Avoided Level Crossing muon Spin Resonance will be used to characterize pyridine radicals in zeolites with the variation of Si/Al ratio and with temperature. The silica to aluminium ratio (Si/Al) of ZSM-5 should determine the number of available Brønsted acid sites that may interact with pyridine molecules. This experiment tries to answer an open question regarding how sensitive is MuSR spectroscopy to the chemistry of the acid sites in the most widely employed acid catalysts. Understanding acidity in zeolites is still an open discussion among the zeolite community and we believe our approach will shed light on the structure of acidity.

Principal Investigator: Dr Ricardo Vieira
Experimenter: Dr Carlos Bornes
Experimenter: Dr Luís Mafra
Experimenter: Dr James Lord
Local Contact: Dr Mark Telling
Experimenter: Professor Joao Gil
Experimenter: Dr Helena Alberto
Experimenter: Dr Rui Vilao
Experimenter: Miss Maria Martins
Experimenter: Mr Eduardo Ribeiro
Experimenter: Dr P.W. Mengyan
Experimenter: Mr Mulder Goeks

DOI: 10.5286/ISIS.E.RB1920585

ISIS Experiment Number: RB1920585

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
Select the data format above to find out more about it.

Data Citation

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

For Example:
Dr Ricardo Vieira et al; (2020): Acidity in zeolites - A MuSR perspective , STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1920585

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