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|Title: ||MCM-41-supported organometallic-derived nanopalladium as a selective hydrogenation catalyst|
|Authors: ||MAITY, N|
|Keywords: ||heterogeneous catalysis|
|Issue Date: ||2008|
|Publisher: ||AMER CHEMICAL SOC|
|Citation: ||JOURNAL OF PHYSICAL CHEMISTRY C, 112(25), 9428-9433|
|Abstract: ||Palladium nanocatalysts have been prepared by anchoring (eta(3)-C3H5)(2)Pd2Cl2 onto dian-tine-functionalized MCM-41 supports followed by reaction with hydrogen under catalytic conditions. The catalyst precursor and used catalyst have been studied by solid-state NMR (C-13, Si-29), XPS, and TEM. The organometallic-derived catalyst exhibits the best performance (activity and selectivity) to date toward the selective hydrogenation of industrially relevant o- and m-chloronitrobenzene to the corresponding chloroaniline derivatives and is distinctly superior to 5% Pd/C. Grazing angle XPS studies reveal that conversion of the tethered molecular species to the nanoparticles of palladium produces a core-shell nanostructure.|
|Appears in Collections:||Article|
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