Pore structure of the products of the thermolysis of ruthenium(IV) hydroxide
Journal Article
·
· Inorg. Mater. (Engl. Transl.); (United States)
OSTI ID:5848600
With an increase in the temperature of Ru(OH)/sub 4/ treatment from 70 to 800/sup 0/C a decrease is observed in the total pore volume with an increase in their size and a decrease in S/sub tot/ and S/sub cum/. The amorphous products are microporous adsorbents up to 150/sup 0/C. The microporosity is retained in specimens isomorphous with Ru(OH)/sub 4/ up to 450/sup 0/C, at which a transformation of spongy RuO/sub 2/ to a mixture of microcrystallites takes place. Over the range 150-450/sup 0/C mixed structures occur where micro- and mesopores are present simultaneously; the appearance of the latter is associated with the commencement of crystallization processes. Over the range 450-600/sup 0/C pores of only transition dimensions are found in the recrystallized specimens of RuO/sub 2/. Above 650/sup 0/C the RuO/sub 2/ powders acquire the characteristics of microporous materials.
- Research Organization:
- Abai Kazakh Pedagogic Institute, USSR
- OSTI ID:
- 5848600
- Journal Information:
- Inorg. Mater. (Engl. Transl.); (United States), Journal Name: Inorg. Mater. (Engl. Transl.); (United States) Vol. 22:12; ISSN INOMA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Formation of the pore structure of brown coal upon thermolysis with potassium hydroxide
Generation of ruthenium dioxide powders during thermal decomposition of Ru(OH)/sub 4/ in a vibrofluidized bed
Thermodynamic data bases for multivalent elements: An example for ruthenium
Journal Article
·
Wed Jul 01 00:00:00 EDT 2009
· Solid Fuel Chemistry (English Translation)
·
OSTI ID:21240320
Generation of ruthenium dioxide powders during thermal decomposition of Ru(OH)/sub 4/ in a vibrofluidized bed
Journal Article
·
Thu Oct 20 00:00:00 EDT 1988
· J. Appl. Chem. USSR (Engl. Transl.); (United States)
·
OSTI ID:6368283
Thermodynamic data bases for multivalent elements: An example for ruthenium
Conference
·
Sat Feb 28 23:00:00 EST 1987
·
OSTI ID:60189
Related Subjects
36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ADSORBENTS
ADSORPTION ISOTHERMS
CHALCOGENIDES
CHEMICAL COATING
CHEMICAL REACTIONS
CHEMICAL VAPOR DEPOSITION
COHERENT SCATTERING
CRYSTAL STRUCTURE
DECOMPOSITION
DEPOSITION
DIFFRACTION
EPITAXY
HYDROGEN COMPOUNDS
HYDROXIDES
ISOTHERMS
MICROSTRUCTURE
OXIDES
OXYGEN COMPOUNDS
POROSITY
PYROLYSIS
PYROLYSIS PRODUCTS
RECRYSTALLIZATION
REFRACTORY METAL COMPOUNDS
RUTHENIUM COMPOUNDS
RUTHENIUM HYDROXIDES
RUTHENIUM OXIDES
SCATTERING
SORPTIVE PROPERTIES
SURFACE COATING
SURFACE PROPERTIES
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
VAPOR PHASE EPITAXY
X-RAY DIFFRACTION
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ADSORBENTS
ADSORPTION ISOTHERMS
CHALCOGENIDES
CHEMICAL COATING
CHEMICAL REACTIONS
CHEMICAL VAPOR DEPOSITION
COHERENT SCATTERING
CRYSTAL STRUCTURE
DECOMPOSITION
DEPOSITION
DIFFRACTION
EPITAXY
HYDROGEN COMPOUNDS
HYDROXIDES
ISOTHERMS
MICROSTRUCTURE
OXIDES
OXYGEN COMPOUNDS
POROSITY
PYROLYSIS
PYROLYSIS PRODUCTS
RECRYSTALLIZATION
REFRACTORY METAL COMPOUNDS
RUTHENIUM COMPOUNDS
RUTHENIUM HYDROXIDES
RUTHENIUM OXIDES
SCATTERING
SORPTIVE PROPERTIES
SURFACE COATING
SURFACE PROPERTIES
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
VAPOR PHASE EPITAXY
X-RAY DIFFRACTION