A rugged lead ruthenate pyrochlore (Py, Pb2Ru2O 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 (RuO4-) intermediate with 30% H2O2 (as a sacrificial co-oxidant) in a triphasic condition (i.e. CH 2Cl2/NPy/H2O2). 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.
All Science Journal Classification (ASJC) codes
- Process Chemistry and Technology
- Physical and Theoretical Chemistry