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- Title
Cationic cellulose nanofibrils as a green support of palladium nanoparticles: catalyst evaluation in Suzuki reactions.
- Authors
Nabili, Abdelkader; Majdoub, Hatem; Jebali, Zayneb; Granados, Albert; Vallribera, Adelina; Boufi, Sami; do Rego, Ana Maria B.
- Abstract
Abstract: Cationic cellulose nanofibrils (C-CNF) were used as a support for the growth and the immobilization of Pd NPs using PdCl2 as precursor. The ensuing Pd@C-CNF nanocomposite was tested as a catalyst for the Suzuki coupling reactions between aryl halides and arylboronic acid. Several characterization methods including TEM, HR-TEM, XRD, FT-IR, TGA and XPS were used to confirm the immobilization of Pd NPs onto the C-CNF surface and probe the surface composition after interaction with PdCl2. A quasi total coupling of phenyl boronic acid and 4-bromoacetophenone in DMF at 110 °C was found to occur after 4 h when only 0.02% of Pd@C-CNF of catalyst was used. Furthermore, the Pd@C-CNF could be easily recovered and reused for three consecutive Suzuki reaction cycles without significant loss of its catalytic activity and the loaded percent of palladium nanoparticles was maintained.Graphical Abstract:
- Subjects
CELLULOSE fibers; PALLADIUM; NANOPARTICLES; SUZUKI reaction; HETEROGENEOUS catalysts
- Publication
Cellulose, 2018, Vol 25, Issue 12, p6963
- ISSN
0969-0239
- Publication type
Article
- DOI
10.1007/s10570-018-2085-8