Green Chemistry for the Transformation of Chlorinated Wastes: Catalytic Hydrodechlorination on Pd-Ni and Pd-Fe Bimetallic Catalysts Supported on SiO[sub.2]

Monometallic catalysts based on Fe, Ni and Pd, as well as bimetallic catalysts based on Fe-Pd and based on Ni-Pd supported on silica, were synthesized using a sol-gel cogelation process. These catalysts were tested in chlorobenzene hydrodechlorination at low conversion to consider a differential rea...

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Bibliographic Details
Published in:Gels 2023-03, Vol.9 (4)
Main Authors: Mahy, Julien G, Delbeuck, Thierry, Tran, Kim Yên, Heinrichs, Benoît, Lambert, Stéphanie D
Format: Article
Language:English
Subjects:
Alloys
Green chemistry
Green technology
Palladium
Palladium catalysts
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Summary:Monometallic catalysts based on Fe, Ni and Pd, as well as bimetallic catalysts based on Fe-Pd and based on Ni-Pd supported on silica, were synthesized using a sol-gel cogelation process. These catalysts were tested in chlorobenzene hydrodechlorination at low conversion to consider a differential reactor. In all samples, the cogelation method allowed very small metallic nanoparticles of 2-3 nm to be dispersed inside the silica matrix. Nevertheless, the presence of some large particles of pure Pd was noted. The catalysts had specific surface areas between 100 and 400 m[sup.2]/g. In view of the catalytic results obtained, the Pd-Ni catalysts are less active than the monometallic Pd catalyst (
ISSN:2310-2861
2310-2861
DOI:10.3390/gels9040275