A Highly Selective Vanadyl Pyrophosphate Synthesized by Exfoliation-Reduction in Mixed Alcohols for n-Butane Oxidation

摘要

Intercalation-exfoliation of VOPO_4-2H_2O crystallites (10 μm in size) in three kinds of butanol (1-, 2- and iso-butanol) and reduction with the butanol brought about thin layers of precursor, VOHPO_40.5H_2O, with the different shape and size. A small fragment-shape vanadyl pyrophosphate obtained by exfoliation in 2-butanol and the sequent reduction in a mixture of 2-butanol-ethanol was highly selective for the oxidation of n-butane.