Determination of Stoichiometry in Lanthanum Strontium Manganates(III)(IV) by Wet Chemical Methods

Autor: I.G. Krogh Andersen, E. Krogh Andersen, Eivind Morten Skou, Poul Norby

Publikováno v: Journal of Solid State Chemistry. 113:320-326

Wet chemical analyses and powder diffractometry were used to characterize lanthanum strontium manganates(III)(IV) with a composition La1-xSrxMnO3+δ (0.00 ≤ x ≤ 0.50). Two series prepared by different thermal treatments were investigated. In seri

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https://doi.org/10.1006/jssc.1994.1377

Preparation and Crystal Structure of (NH4)8Ni(HPO4)2(PO4)2Mo10O30.12H2O

Autor: Yngve Stenstrøm, Marit Trætteberg, Akos Sveiczer, Rolf Carlson, J. Villadsen, Harald Møllendal, Vernon D. Parker, Ahmad Nasiri, E. Krogh Andersen, Tadashi Tsuda

Publikováno v: Acta Chemica Scandinavica. 47:748-752

Crystal structure: P1, a=15.541, b=10.196, c=9.360A, α=110.46, β=97.51, γ=94.94°, Z=1, R=0.028 for 7222 reflections. The Ni ions are on symmetry centers and are octahedrally coordinated by four water molecules and two oxygen atoms from tertiary p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::980e9ef0f9a13f4ec64819bfd8f3752c
https://doi.org/10.3891/acta.chem.scand.47-0748

Study of preparation and ac/dc conductivity of tin-zeolite-Y materials

Autor: E. Krogh Andersen, Eivind Morten Skou, N. Knudsen, I.G. Krogh Andersen

Publikováno v: Solid State Ionics. 46:89-93

Tin-zeolite-Y materials were prepared by heating zeolite H-Y mixed with tin (II) chloride dihydrate. Excess of tin (II) was oxidized to tin (IV) oxide by oxygen. The ac and dc conductivities were measured in atmospheres of constant relative humidity

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https://doi.org/10.1016/0167-2738(91)90134-w

Synthesis and structure of an ABW type thallium aluminosilicate

Autor: M. de'Gennaro, Poul Norby, C. Colella, I.G. Krogh Andersen, E. Krogh Andersen

Publikováno v: Zeolites. 11:149-154

TlABW, TlAlSiO 4 was prepared hydrothermally in presence of Li + , Na + , and K + ions, and its structure was determined from X-ray powder diffraction data. The unit cell is a = 8.297 (1), b = 9.417 (1), c = 5.413 (1) A, and the space group is Pna2 1

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https://doi.org/10.1016/0144-2449(91)80409-s

Kinetics of Oxidation of Fuel Cell Cathode Materials Lanthanum Strontium Manganates(III)(IV) at Actual Working Conditions:In SituPowder Diffraction Studies

Autor: I.G. Krogh Andersen, Jonathan C. Hanson, Poul Norby, E. Krogh Andersen

Publikováno v: Andersen, E K, Andersen, I G K, Norby, P & Hanson, J C 1998, ' Kinetics of Oxidation of Fuel Cell Cathode Materials Lanthanum Strontium Manganates(III)(IV) at Actual Working Conditions:In SituPowder Diffraction Studies ', Journal of Solid State Chemistry, vol. 141, no. 1, pp. 235-240 . https://doi.org/10.1006/jssc.1998.7964

Time resolved synchrotron X-ray powder diffraction methods have been used to study the kinetics of oxidation of lanthanum strontium manganates(III, IV) in a flow of oxygen. The process studied is La1−xSrxMnO3.00+δ/2O2↔La1−xSrxMnO3.00+δ(forx=0

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9cde9bc053f540c4509923412e217f2
https://portal.findresearcher.sdu.dk/da/publications/04ff3de5-abab-498f-8f53-1f4ee8ed24c1