Publisher Summary This chapter describes the essence of the catalytic chemistry of
heteropoly compounds in solution and in the solid state. The catalytic properties of …

Decades of heavy reliance on petroleum refineries for energy have led to perpetual
environmental pollution. These emissions include sulfur oxides, nitrogen oxides, carbon …

In this work, we have explored the catalytic activity of Keggin-type heteropolyanions PMo12−
nVnO40 (3+ n)−(n= 0, 1, 2, or 3) in the form of sodium salts in green oxidation routes of …

Raman characterization revealed that the Keggin anion structure of H4PVMo11O40 is
inherently unstable upon heat treatment and loss of water. Vanadyl and molybdenyl species …

The structural changes of the title compound during heating and under conditions of catalytic
conversion of isobutyric acid to methacrylic acid were followed in situ by powder X-ray …

In this work, vanadium-doped phosphomolybdic acids were evaluated as catalysts in green
oxidation routes of terpene alcohols with hydrogen peroxide. A series of phosphomolybdic …

Chemical modifications of the 12-phosphomolybdic acid by substitution of a Mo atom by a V
in the so-called Keggin primary structure and/or by introduction of counter-cations (NH4+ …

H4PVMo11O40⋅ 8H2O was studied during thermal activation as well as during isobutane
oxidation by simultaneous in situ-EPR/UV–vis/Raman spectroscopy, in situ-FTIR …

Phosphomolybdic compounds were first described as active catalysts in heterogeneous
catalytic reactions some twenty-five years ago. Research on these catalysts underwent a …

The thermal stability and isobutane oxidation activity of catalysts with Fe selectively placed
in the Keggin anion have been studied. For the Cs3H1PMo11FeO39 salt, Fe was released …