Unravelling the crystal structure of NdWO and NdWMoO mixed ionic electronic conductors.

Mixed ionic electronic conducting ceramics Nd WO (δ is the oxygen deficiency) provide excellent stability in harsh environments containing strongly reactive gases such as CO, CO, H, HO or HS. Due to this chemical stability, they are promising and cost-efficient candidate materials for gas separation, catalytic membrane reactors and protonic ceramic fuel cell technologies. As in La WO, the ionic/electronic transport mechanism in Nd WO is expected to be largely controlled by the crystal structure, the conclusive determination of which is still lacking.

Investigation of short-range structural order in Zr69.5Cu12Ni11Al7.5 and Zr41.5Ti41.5Ni17 glasses, using X-ray absorption spectroscopy and ab initio molecular dynamics simulations.

Short-range order has been investigated in Zr69.5Cu12Ni11Al7.5 and Zr41.

Synthesis and characterization of nonsubstituted and substituted proton-conducting La(6-x)WO(12-y).

Mixed proton-electron conductors (MPEC) can be used as gas separation membranes to extract hydrogen from a gas stream, for example, in a power plant. From the different MPEC, the ceramic material lanthanum tungstate presents an important mixed protonic-electronic conductivity. Lanthanum tungstate La(6-x)WO(12-y) (with y = 1.

[Cerebral MRT in x chromosome linked adrenoleukodystrophy].

Adrenoleukodystrophy (ALD) is a rare lipid storage disease, characterized among other symptoms by a progressive demyelinization of white matter. Changes are well demonstrated by MRT: Leukencephalopathy begins symmetrically in the occipital lobes of the cerebrum and involves furthermore the splenium of the corpus callosum, the nucleus dentatus and the descending tracts. As neurologic signs may precede signs of adrenal insufficiency, MRT may be important to suspect the diagnosis of ALD, which generally is diagnosed by biochemical tests.