Vanadium-doped zirconias

The appearance of common peaks for tetragonal and monoclinic vanadium-doped zirconias suggests that identical electrochemical pathways are operative for vanadium centers in these materials. Additional peaks recorded in t-V ZrOj materials can be attributed, however, to vanadium centers with a coordinative arrangement characteristic of tetragonal zirconias. 

Chiral electrocatalysis can be achieved via formation of chiral surfaces (Attard, 2001 Pleus and Schulte, 2001 Hazzazi et al., 2004) but also by inserting chiral centers into the inorganic matrix. This should apply to the case of monoclinic and cerium- and vanadium-doped zirconias (Domenech and Alarcon, 2007), which will be presented in Chapter 9. 

Domenech, A., and Alarcon, J. 2002a. Determination of hydrogen peroxide using glassy carbon and graphite/polyester composite electrodes modified by vanadium-doped zirconias. AnfiiZyficfii Chimica Acta 452, 11-22. 

Vanadium oxide and cerium oxide have also been used to dope titania-zirconia mixed oxides. Their results will be discussed in the next section. 

Titania-zirconia mixed oxides doped with vanadium and cerium oxides were also explored. The Ti02-Zr02 mixed oxide support, synthesized by a co-precipitation... 

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