Abstract: A compound represented by one of the formulae: BaaMobOc??(1), MOdPeOf??(2) or BagMohPiOj??(3) wherein for formula (1) the ratio of a:b is from 1:100 to 100:1, wherein for formula (2) the ratio of d:e is from 1:100 to less than 1:1 or from greater than 1:1 to 100:1, wherein for formula (3) the ratio of g:h is from 1:100 to less than 1.5:1, wherein for formula (3) the ratio of g:i is from 1:100 to 100:1, wherein for formula (3) the ratio of h:i is from 1:100 to less than 1:2, or from greater than 1:2 to less than 2:1, or from greater than 2:1 to 100:1, and wherein the molybdenum present within the compound is in the 5+ oxidation state.

Abstract: A compound represented by one of the formulae: BaaMobOc??(1), MOdPeOf??(2) or BagMohPiOj??(3) wherein for formula (1) the ratio of a:b is greater than 1:1, wherein for formula (2) the ratio of d:e is from 1:100 to 0.45:1 or from 0.55:1 to 100:1, wherein for formula (3) the ratio of g:h is from 1:7 to 1:2 and the ratio of g:i is from 1:3 to 1:1, or the ratio of g:h is from 0.6:1 to 100:1 and the ratio of g:i is from 2.2:1 to 100:1, and wherein the molybdenum present within the compound is in the 4+ oxidation state.

Abstract: A film comprising a set of layers including a first layer, a third layer and a second layer therebetween is described. The first layer comprises and/or is a transparent conductive oxide, TCO, having a formula: A1B1O3-?1; The third layer comprises and/or is a transparent wide-bandgap semiconductor oxide having a formula: A3B303-?3; The second layer comprises and/or is an oxide layer having a formula: A1?A31-?B1O3-?2 or A1?A31-?B3O3-?2 or A3B1?B31-?O3-?2 or A1?A31-?B1?B31-?O3-?2; wherein 0<?, ?<1, ?0.5??1, ?2, ?3?0.5.

Abstract: Perovskite structures are disclosed comprising: a first element X which may be barium and/or a lanthanide, strontium, iron, cobalt, oxygen, magnesium and tungsten; the structure comprising a region of single perovskite and a region of double perovskite. Also disclosed are methods for forming such structures, electrodes comprising such structures and solid oxide cells using such structures.

Abstract: A solid crystalline material of formula (I): AzDY4Xx, wherein each A is independently selected from Li, Na, K and Mg; D is selected from Si, Al, P, B, Ga, Ge, S, Mo, W, V, Sn, Sb, Nb and Ta, or a mixture thereof; each Y is independently selected from O, S, F, Cl, Br or a mixture thereof; each X is independently selected from F, Cl, Br, I, O, S, BH4 or a mixture thereof; z is from 2 to 8; and x is from 1 to 3. The solid crystalline material suitably provides a solid ionic conductor for use in a solid-state battery. A mixed solid crystalline material comprising the solid crystalline material, a solid-state battery comprising the solid crystalline material and a method of preparing the solid crystalline are also disclosed.

Abstract: To provide a new compound with pores finely tunable in size so as to take up a specific element and release the specific element taken up in the pores as necessary, a synthesis method of the new compound, and a separation and recovery agent. The new compound represented by the following molecular formula: (NH4)[Ln(C2O4)2(H2O)] wherein Ln represents a lanthanide selected from Sm, Eu, Tb, Dy, Ho, Er, Tm, Yb, and Lu.

Abstract: To provide a new compound with pores finely tunable in size so as to take up a specific element and release the specific element taken up in the pores as necessary, a synthesis method of the new compound, and a separation and recovery agent. The new compound represented by the following molecular formula: (NH4)[Ln(C2O4)2(H2O)] wherein Ln represents a lanthanide selected from Sm, Eu, Tb, Dy, Ho, Er, Tm, Yb, and Lu.

Abstract: Perovskite structures are provided for use in fuel cells. Specifically, perovskite structures are provided for use as electrodes in solid oxide fuel cells (SOFCs) and methods of making the same. The perovskite structure may include a first element X, strontium, iron, cobalt, oxygen and tungsten; wherein the first element X is barium, a lanthanide, or a mixture thereof, and wherein the structure comprises a region of single perovskite and a region of double perovskite.

Abstract: To provide a new compound with pores finely tunable in size so as to take up a specific element and release the specific element taken up in the pores as necessary, a synthesis method of the new compound, and a separation and recovery agent. The new compound represented by the following molecular formula: (NH4)[Ln(C2O4)2(H2O)] wherein Ln represents a lanthanide selected from Sm, Eu, Tb, Dy, Ho, Er, Tm, Yb, and Lu.

Abstract: The invention relates to structures for use in fuel cells. Specifically, perovskite structures for use as electrodes in solid oxide fuel cells (SOFCs) and methods of making the same.

Abstract: The present invention relates to a mixed metal oxide exhibiting perovskite-type structural characteristics in which there are cations of Ba, Ca or Sr, a rare earth metal and Fe, Cr, Cu, Co or Mn present in three different coordination sites or a composition thereof, to a cathode composed of the mixed metal oxide or composition thereof and to a solid oxide fuel cell comprising the cathode.

Abstract: The present invention relates to a cathode composed of a perovskite-type or fluorite-type mixed metal oxide containing molybdenum, to a composite comprising the mixed metal oxide and to a solid oxide fuel cell comprising the cathode. The cathode mixed metal oxide has an empirical formula unit: EaTbMocOn wherein: T is one or more transition metal elements other than Mo; E is one or more metal elements selected from the group consisting of lanthanide metal elements, alkali metal elements, alkaline earth metal elements, Pb and Bi; and a, b, c, and n are non-zero numerals which may be the same or different for each element.

Abstract: The present invention relates to a mixed metal oxide of formula SrM1-xTixO3 wherein x is 0>x>1 and M is Hf or Zr, such as a strontium-hafnium-titanium oxide orstrontium-zirconium-titanium oxide, and to a functional device comprising the mixed metal oxide.