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 …

The mechanisms of sorption which control the uptake of ionic species from solution at
mineral surfaces are of fundamental importance in colloid science, but are poorly …

Pairing of a Keggin or Lindqvist polyoxometalate (POM) anion with an appropriate
tetraalkylphosphonium cation is shown to yield the first members of a new family of ionic …

The tungsten (W) species in marine ferromanganese oxides were investigated by
wavelength dispersive XAFS method. We found that the W species are in distorted Oh …

WO3/Nb2O5-supported samples prepared by impregnation are characterised by X-ray
diffraction (XRD), Raman spectroscopy and X-ray absorption spectroscopy (XAS) at the W …

X-ray absorption fine structure (XAFS) is a powerful technique used to analyze a local
electronic structure, local atomic structure, and structural dynamics. In this review, I present …

The solution chemistry of Mo (VI) and W (VI) in mixtures of sulfuric and phosphoric acids is
relevant to the development of practicable hydrometallurgical processes for the recovery …

X-ray absorption spectra for molybdenum (VI) in acidic solutions were measured and their
XANES and EXAFS were analysed. The cationic monomer MoO 2 2+ is present in HClO 4, H …

The surface structure of vanadyl pyrophosphate ((VO) 2P2O7) and its changes upon
controlled oxidation and reduction have been investigated comprehensively by means of …

Polyoxotantalates, clusters of tantalum (Ta) oxide, are promising catalysts for CO2 fixation
reactions because of their exceptional Lewis basicity facilitating CO2 activation. Here, we …