Phase relations and thermal expansion studies in the CeO2–NdO1.5 system

Non-stoichiometries of (Nd0.1Ce0.9)O2−x and (Gd0.1Nd0.1Ce0.8)O2−x

“…Lattice parameters of prepared CNO10 and CGNO20 were 0.5430 and 0.5434 nm, respectively. The lattice parameter of CNO10 agreed with those in the literature [8], as shown in Fig. 1.…”

Microstructure and reactivity effects on the performance of Nd2NiO4+δ oxygen electrode on Ce0.9Gd0.1O1.95 electrolyte

“…For the mixtures annealed at 900 and 1000 C during 1 h, only the diffraction peaks of the starting materials (NNO and CGO) are present. For the mixture treated at 1100 C for 1 h, additional peaks assigned to the fluorite Ce 1Àx Nd x O (2Àx)/2 phase are observed [21,22]. Pt is usually used as current collector but chemical reactivity between this metal and La 2 NiO 4 has been previously reported [23,24].…”

XRD investigations in the Nd2O3–Y2O3 system and structural studies of a stabilized monoclinic phase

“…This stabilization of B-type lattice of NdO 1.5 can be attributed to decrease in average cationic size in Nd 1−x Y x O 1.5 , which then comes in the B-type stability range. It may be noted that in our earlier studies [9] a stabilization of actually a C-type phase of NdO 1.5 was observed on incorporating of about 32.5 mol% CeO 2 into the NdO 1.5 lattice. Here, for the Ce 4+ doped NdO 1.5 , the average ionic size of Ce 1−x Nd x O 2−x/2 appears to decrease further to an extent that it falls in the Ctype stability region.…”