We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Mesoporous Silica (MCM‐41) Containing Dispersed Palladium Nanoparticles as Catalyst for Dehydrogenation, Methanolysis, and Reduction Reactions.
- Authors
Ul Huda, Noor; Ul‐Hamid, Anwar; Khan, Muhammad Abdullah; Shahida, Shabnam; Zaheer, Muhammad
- Abstract
Generating highly dispersed metal NPs of the desired size on surfaces such as porous silica is challenging due to wettability issues. Here, we report highly active and well‐dispersed Pd incorporated mesoporous MCM‐41 (Pd@MCM) using a facile impregnation via a molecular approach based on hydrogen bonding interaction of a palladium β‐diketone complex with surface silanol groups of mesoporous silica. Controlled thermal treatment of so obtained materials in air, argon, and hydrogen provided the catalysts characterized by electron microscopy, nitrogen physisorption, X‐ray diffraction and spectroscopy. Gratifyingly, our catalyst provided the lowest ever activation energy (14.3 kJ/mol) reported in literature for dehydrogenation of NaBH4. Moreover, the rate constant (7×10−3 s−1) for the reduction of 4‐nitrophenol outperformed the activity of commercial Pd/C (4×10−3 s−1) and Pd/Al2O3 (5×10−3 s−1) catalysts.
- Subjects
PALLADIUM catalysts; POROUS silica; METHANOLYSIS; DEHYDROGENATION; CATALYTIC dehydrogenation; HYDROGEN bonding interactions; MESOPOROUS silica; PALLADIUM compounds
- Publication
ChemPlusChem, 2023, Vol 88, Issue 10, p1
- ISSN
2192-6506
- Publication type
Article
- DOI
10.1002/cplu.202300338