Yttrium and Rare Earth Vanadates

Self‐Assembled Heavy Lanthanide Orthovanadate Architecture with Controlled Dimensionality and Morphology

“…[15] Stimulated by both the promising applications and the interesting properties, much attention has been directed to the controlled Abstract: Nearly monodisperse YVO 4 architectures with persimmon-like, cube-like and nanoparticle shapes have been synthesised on a large scale by means of a complexing-agent-assisted solution route. The shape and size of these as-prepared architectures can be tuned effectively by controlling the reaction conditions, such as reaction time, the molar ratio of complexing agent/Y 3 + and different complexing agents.…”

“…The ionic radius of rare earth elements decreases from atomic number 57 to 71, and the ionic radius of Y 3 + lies between that of Dy 3 + and Ho 3 + . [24] In this paper, CeVO 4 (samples 17-19), GdVO 4 (samples [20][21][22], DyVO 4 (samples [11][12][13] and ErVO 4 (samples [14][15][16] have also been synthesised under similar reaction conditions with these three complexing agents, respectively. It is found that DyVO 4 and ErVO 4 have similar morphology variation to that of YVO 4 ( Figure 10) and only nanoparticles are obtained for CeVO 4 and GdVO 4 (see Figure S4 in the Supporting Information).…”

Monodisperse Samarium and Cerium Orthovanadate Nanocrystals and Metal Oxidation States on the Nanocrystal Surface

“…Rare earth orthovanadate (Re−V−O) crystals have potential applications as catalysts and support owing to their high surface area, thermal stability, and oxygen storage/release capacity (OSC). − These materials have been used as oxygen ion conductors in solid oxide fuel cells, as three way catalysts (TWCs), and as high-activity catalysts in oxidative dehydrogenation of propane to propene and selective oxidation of hydrogen sulfide to elemental sulfur at low reaction temperatures. − …”

Electron transport and magnetic properties of rare-earth ortho-titanites and -vanadites, LnTiO3 and LnVO3

“…LnVO, compounds (Ln = La, E d , Sm, Eu, Gd, Dy, Yb, TI) were prepared by reducing the corresponding LnVO, compounds in hydrogen for 6 to 8 h at 1000 "C [8]. LnVO, compounds were prepared by heating the corresponding h , O , with a slight excess of V,O, at 1000 "C for 34 h with intermittent grinding, washing off the excess V,O, with aninionia, and heating t,he residue in oxygen a t 900 "C for 6 h [9]. The weight loss on reduction of LnVO, corresponded to more than 99.90,; reduction.…”