Temperature-resolved x-ray powder diffractometry of a new cadmium hydroxide nitrate

Journal Article · Mon Jan 01 04:00:00 EST 1990 · Journal of Solid State Chemistry; (USA)

DOI:https://doi.org/10.1016/0022-4596(90)90184-Y· OSTI ID:6658475

Auffredic, J P; Plevert, J; Loueer, D ^[1]

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1. Universite de Rennes (France)

A new cadmium hydroxide nitrate, Cd{sub 3}(OH){sub 5}NO{sub 3}, was prepared by an interdiffusion method and its X-ray powder diffraction pattern was indexed. The symmetry is orthorhombic and the cell parameters are a = 3.4209(3) {angstrom}, b = 10.0292(6) {angstrom}, and c = 11.0295(6) {angstrom}. The thermal decomposition of this solid was analyzed in a vacuum and in a nitrogen atmosphere by the TG, MS, and TRXD methods. Temperature-resolved diffractometry was carried out by means of a curved position-sensitive detector combined to a conventional X-ray powder diffractometer. A new modification of Cd(OH)NO{sub 3} was displayed during the first stage of the decomposition and a detailed decomposition scheme is proposed. This study shows that the rate of the structural transformation can be quite different from that of the departure of the gaseous molecules. From TRXD, the evolution of microstructural properties of Cd(OH)NO{sub 3} and CdO as a function of temperature is also described.

• OSTI ID: 6658475
• Journal Information: Journal of Solid State Chemistry; (USA), Journal Name: Journal of Solid State Chemistry; (USA) Vol. 84:1; ISSN 0022-4596; ISSN JSSCB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
CADMIUM COMPOUNDS
CADMIUM HYDROXIDES
CADMIUM NITRATES
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DATA
DATA ANALYSIS
DIFFRACTION
EXPERIMENTAL DATA
HYDROGEN COMPOUNDS
HYDROXIDES
INFORMATION
MEASURING INSTRUMENTS
MEASURING METHODS
METALLURGY
NITRATES
NITROGEN COMPOUNDS
NUMERICAL DATA
ORTHORHOMBIC LATTICES
OXYGEN COMPOUNDS
POWDER METALLURGY
SCATTERING
SYNTHESIS
THERMAL ANALYSIS
X-RAY DIFFRACTION