Zobrazeno 1 - 10
of 38
pro vyhledávání: '"E. Krogh Andersen"'
Publikováno v:
Journal of Solid State Chemistry. 119:191-196
Orthorhombic stoichiometric LaMnO3 is prepared by heating rhombohedral LaMaO3+δ under N2 at 1173 K and cooling to room temperature under N2. The thermal transformations of orthorhombic lanthanum manganate(III) were investigated using high-temperatur
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
Publikováno v:
Solid State Ionics. 61:153-161
By preparation of tin-ferrierites, tin-silicalites, tin-mordenites and tin-zeolite-Y's it has been shown that the treatment of H-zeolites with tin (II) chloride dihydrate is a general method for preparing tin-zeolites. In the syntheses a part of the
Publikováno v:
Zeitschrift für Kristallographie - Crystalline Materials. 194:221-228
An X-ray diffraction study of single crystals of acuminite, a strontium aluminium fluoride mineral from Ivigtut, Greenland [SrAIF4(OH)' H20, a = 13.223(1) A, b = 5.175(1) A, c = 14.251(1) A, p=111.61(2), C2jc, Z=8, Dm= 3.295 gcm-3, Dc=3.305gcm-3] use
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
Publikováno v:
Zeolites. 11:248-253
X-ray powder diffraction studies of synthetic cancrinites were undertaken to elucidate the role of lithium ions and large cations (Cs, Tl) in zeolite crystallizations. Li 4.56 Cs 1.50 Al 6 Si 6 O 24 , 4.9 H 2 O (a = b = 12.4328 (12) A, c = 4.9692 (6)
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
Autor:
A. Nørlund Christensen, E. Krogh Andersen, I. G. Krogh Andersen, G. Alberti, M. Nielsen, M. S. Lehmann, Tadashi Tokii
Publikováno v:
Acta Chemica Scandinavica. 44:865-872
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
https://portal.findresearcher.sdu.dk/da/publications/04ff3de5-abab-498f-8f53-1f4ee8ed24c1