Showing papers by "Daniel Louër published in 1998"
TL;DR: A detailed analysis of the microstructural properties of nanocrystalline zinc oxide powders produced by thermal decomposition of four different precursors (hydroxide nitrate, oxalate, hydroxide car) is given in this paper.
Abstract: A detailed analysis of the microstructural properties of nanocrystalline zinc oxide powders produced by thermal decomposition of four different precursors (hydroxide nitrate, oxalate, hydroxide car
138 citations
TL;DR: In this article, the thermal behavior of zinc phenylphosphonate has been studied by temperature-dependent X-ray powder diffraction and thermo-gravimetry in the temperature range 19-600°C.
28 citations
TL;DR: The structure of the new phase LaAl(NO 3 ) 6.12H 2 O has been determined from single-crystal diffraction data as discussed by the authors, which consists of discrete lanthanum and aluminium polyhedra.
6 citations
TL;DR: In this article, a deux solides nanocristallins, un oxyde de cerium and un hydoxyde de nickel are used for diffraction of rayons X.
Abstract: L'analyse des profils de raies de diffraction des rayons X, combinee a la modelisation de l'ensemble du diagramme, est discutee au travers des methodes de Voigt et de Fourier. La procedure est appliquee avec le logiciel ProfFOU a deux solides nanocristallins, un oxyde de cerium et un hydoxyde de nickel. Une interpretation optimale de leurs proprietes microstructurales est presentee et les resultats obtenus par les deux methodes sont discutes. L'analyse de quinze reflexions du diagramme de CeO 2 montre que le solide est exempt de distorsions reticulaires et que les cristallites ont une forme moyenne spherique. Pour Ni(OH) 2 une morphologie en disque est proposee et la presence de microdistorsions est mise en evidence.
1 citations
TL;DR: In this paper, the title compound was synthesized from a nitric acid solution of silver and cerium(III) nitrates at 333 K. The structure is built from irregular icosahedral [Ce(NO3)6]3− anions and Ag+ cations.
Abstract: The title compound was synthesized from a nitric acid solution of silver and cerium(III) nitrates at 333 K. The structure is built from irregular icosahedral [Ce(NO3)6]3− anions and Ag+ cations. The O atoms around one of the two independent Ag atoms form a distorted bicapped trigonal prism, while a non-definite polyhedron is observed around the other. Two types of nitrate groups ensure the continuity and give a three-dimensional aspect to the crystal structure.