Pd(II) loaded on diamine functionalized LDH for oxidation of primary alcohol using water as solvent

Authors: Mitarani Sahoo, K.M. Parida

Abstract:
Hybrid inorganic–organic materials which comprise organic functional groups tethered from layered double hydroxide surfaces are versatile, heterogeneous catalysts. This functional group can bind with palladium that provides catalytic activity superior to what can be obtained from homogeneous catalysts. This work reports synthesis of heterogeneous and recyclable Pd(II) (supported on diamine functionalized layered double hydroxide) catalyst for oxidation of primary alcohol using water as solvent and molecular O₂ as a terminal oxidant. The organometallic-derived catalyst has been studied by XRD, FTIR, UV–vis DRS, solid-state NMR (13C, 29Si), XPS, TGDTA, SEM and EDX. Here the ligand N-[3-(trimethoxysilyl)- propyl] ethylenediamine (TPED) is covalently attached to the surface of LDH, which is shown by NMR spectroscopy.XPS results strongly suggestthatitinvolves the formation of N Pd coordination bonds. EDX confirmed that all the elements were present in the LDH/Pd(II) complex. The heterogeneous catalyst can be easily recovered and reused multiple times without significant loss of catalytic activity and selectivity, which is a better green alternative for practical applications.

Keywords:
Layered double hydroxide
Oxidation reaction
Pd(II)-complex
Water
Functionalization

Published in: Applied catalysis A: General  (Volumes 460–461, Pages 1-132, 10 June 2013)

Publisher: Elsevier

ISSN Information: 0926-860X

Pd(II) loaded on diamine functionalized LDH for oxidation of primary alcohol using water as solvent

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