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          Institute: MPI für Festkörperforschung     Collection: FKF Publikationen 2006     Display Documents

ID: 305967.0, MPI für Festkörperforschung / FKF Publikationen 2006
An anhydrous high-pressure synthesis route to rutile type RhO2
Authors:Demazeau, G.; Baranov, A.; Pöttgen, R.; Kienle, L.; Möller, M. H.; Hoffmann, R. D.; Valldor, M.
Date of Publication (YYYY-MM-DD):2006
Title of Journal:Zeitschrift für Naturforschung B
Issue / Number:12
Start Page:1500
End Page:1506
Review Status:Peer-review
Audience:Not Specified
Abstract / Description:A new anhydrous high-pressure synthesis route was developed for rutile
type RhO2. Rhodium(III) chloride was reacted with Na2O2 at 600 degrees
C under an oxygen pressure of 200 MPa yielding RhO2 and NaCl. X-ray
powder diffractometer data and TEM observations confirmed the rutile
structure: P4(2)/mnm, a = 448.7(1), c = 308.9(1) pm, x(O) = 0.3125(8),
leading to Rh-O distances of 195.0 (4x) and 198.3 pm (2x) in the
slightly elongated octahedra. Structural transformations associated
with the production of oxygen vacancies can be initiated by
electron-beam heating.
Free Keywords:high-pressure synthesis; crystal chemistry
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Festkörperforschung
External Affiliations:Univ Munster, Inst Anorgan & Analyt Chem, D-48149 Munster, Germany.
; Univ Bordeaux 1 Sci & Technol, ENSCPB, F-33608 Pessac, France.
; Univ Bordeaux 1 Sci & Technol, CNRS, ICMCB,Ctr Ressources Hautes Press, Inst Chim Mat Condensee Bordeaux, F-33608 Pessac, France.
; Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119992, Russia.
; Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany.
; Tech Univ Carolo Wilhelmina Braunschweig, Inst Phys Kondensierten Mat, D-38106 Braunschweig, Germany.
Identifiers:ISI:000243802000007 [ID No:1]
ISSN:0932-0776 [ID No:2]
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