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Updated: May 15, 2025

Synthesis of Zeolites Using the ADOR Assembly-Disassembly-Organization-Reassembly Route
Published on: April 3, 2016
Operando infrared and inelastic neutron scattering studies of zeolite catalysed low-density polyethylene degradation
Emma Campbell1,2, Katie S C Morton2,3, Alexander J O'Malley2,3
1School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK.
Abstract:
The degradation of polyethylene (LDPE) by H-ZSM-5 is investigated by vibrational spectroscopy, using diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) and inelastic neutron scattering (INS). DRIFTS results indicate initial interaction between LDPE and external silanol groups, and hydrogen bonding with some Brønsted acid sites. At low temperatures both techniques suggest minimal interactions between the LDPE and the internal acid site of the zeolite, suggesting initial interactions are primarily with the zeolite surface. At higher reaction temperatures, oligomerisation is observed on Brønsted acid sites.
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