Abstract
A rugged lead ruthenate pyrochlore (Py, Pb 2Ru 2O 6O′) Nafion ® 417 membrane catalyst (|NPy|) has been prepared by an in situ precipitation method and characterized by physico-chemical techniques. The Nafion ® 417 membrane enhanced the Py crystallization to form a stable and continuous agglomerate-like structure in the |NPy| network. The cationic exchange characteristics of Nafion ® 417 membrane was not fully suppressed after Py modification. Catalytic performance was demonstrated for the one pot and selective oxidation of benzyl alcohol to benzaldehyde via a perruthenate (RuO 4 −) intermediate with 30% H 2O 2 (as a sacrificial co-oxidant) in a triphasic condition (i.e. CH 2Cl 2/NPy/H 2O 2). Four repeated experiments with the |NPy| entailed a weight loss of ∼0.07% with virtually the same catalytic performance. With these inherent features, this membrane catalyst is useful in diverse research fields including organic synthesis, fuel cells, charge storage systems, etc.
Published Version
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