Please use this identifier to cite or link to this item: https://scholarhub.balamand.edu.lb/handle/uob/5349
Title: PET waste as organic linker source for the sustainable preparation of MOF-derived methane dry reforming catalysts
Authors: Karam, Leila
Miglio, Arianna
Specchia, Stefania
Hassan, Nissrine El 
Massiani, Pascale
Reboul, Julien
Affiliations: Department of Chemical Engineering 
Issue Date: 2021
Part of: Materials Advances
Volume: 2
Issue: 8
Start page: 2750
End page: 2758
Abstract: 
A catalyst made of Ni0 nanoparticles highly dispersed on a lamellar alumina support was prepared by an environmentally-friendly route. The latter involved the synthesis of an aluminum-containing metal-organic framework (MOF) MIL-53(Al) in which the linkers were derived from the depolymerization of polyethylene terephthalate (PET) originating from plastic wastes. After demonstrating the purity and structure integrity of the PET-derived MIL-53(Al), this MOF was impregnated with nickel nitrate salt and then calcined to form a lamellar Ni-Al2O3 mixed metal oxide with a high surface area (SBET = 1276 m2 g-1, N2 sorption). This mixed oxide consisted of nickel aluminate nanodomains dispersed within amorphous alumina, as revealed by PXRD and TPR analyses. Subsequent reduction under H2 resulted in the formation of well-dispersed 5 nm Ni0 nanoparticles homogeneously occluded within the interlamellar porosity of the γ-alumina matrix, as attested by electron microscopy. This waste-derived catalyst displayed catalytic performances in the reaction of dry reforming of methane (DRM) as good as its counterpart made from a MOF obtained from commercial benzene-1,4-dicarboxylic acid (BDC). Thus, under similar steady state conditions, at 650 °C and 1 bar, the PET-derived catalyst led to CH4 and CO2 conversions as high as those on the BDC-derived catalyst, and its catalytic stability and selectivity towards DRM were excellent as well (no loss of activity after 13 h and H2 : CO products ratio remaining at 1). Moreover, both catalysts were much better than those of a reference nickel alumina catalyst prepared by conventional impregnation route. This work therefore demonstrates the possibility of using plastic wastes instead of commercial chemicals to prepare efficient porous nickel-alumina DRM catalysts from MOFs, fostering the concept of circular economy.
URI: https://scholarhub.balamand.edu.lb/handle/uob/5349
DOI: 10.1039/d0ma00984a
Open URL: Link to full text
Type: Journal Article
Appears in Collections:Department of Chemical Engineering

Show full item record

SCOPUSTM   
Citations

4
checked on Jul 2, 2022

Record view(s)

20
checked on Jul 3, 2022

Google ScholarTM

Check

Dimensions Altmetric

Dimensions Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.