An electrochemical study of the mixed beta-vanadium bronzes Li /SUB y/ Na /SUB x/ V/sub 2/O/sub 5/ and Li /SUB y/ K /SUB x/ V/sub 2/O/sub 5/
Journal Article
·
· Mater. Res. Bull.; (United States)
It has been found that lithium may be rapidly inserted into ..beta..-phase sodium and potassium vanadium bronzes to yield phases of composition Li /SUB y/ Na /SUB x/ V/sub 2/O/sub 5/ and Li /SUB y/ K /SUB x/ V/sub 2/O/sub 5/. For (x + y) values less than about 2/3, a single phase region is found. For higher lithium contents two additional narrow phases are formed; the maximum alkali metal content appears to correspond to a vanadium oxidation state of 4. The reversibility of the insertion reactions and x-ray powder diffraction indicate that the structures of the higher lithium content phases are closely related to the ..beta..-phase. Thermodynamic data have been derived from the electrochemical results.
- Research Organization:
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305
- OSTI ID:
- 5668320
- Journal Information:
- Mater. Res. Bull.; (United States), Journal Name: Mater. Res. Bull.; (United States) Vol. 18:3; ISSN MRBUA
- Country of Publication:
- United States
- Language:
- English
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Phase equilibrium study of the LiV/sub 2/O/sub 5/-V/sub 2/O/sub 4/-V/sub 2/O/sub 5/ system at 923 K: a series of lithium vanadium bronzes, Li/sub x/V/sub 6n/O/sub 15n-m/
Conference
·
Sat Oct 01 00:00:00 EDT 1983
· Proc. - Electrochem. Soc.; (United States)
·
OSTI ID:6312855
Electronic properties of beta-vanadium bronzes Li{sub x}Na{sub y}V{sub 2}O{sub 5} (0.23 {le} x + y {le} 0.37) obtained by the sol-gel process
Journal Article
·
Tue Aug 01 00:00:00 EDT 1995
· Journal of Solid State Chemistry
·
OSTI ID:146447
Phase equilibrium study of the LiV/sub 2/O/sub 5/-V/sub 2/O/sub 4/-V/sub 2/O/sub 5/ system at 923 K: a series of lithium vanadium bronzes, Li/sub x/V/sub 6n/O/sub 15n-m/
Journal Article
·
Sat Oct 31 23:00:00 EST 1987
· J. Solid State Chem.; (United States)
·
OSTI ID:5649778
Related Subjects
36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
ALKALI METAL COMPOUNDS
ALKALI METALS
CHEMICAL REACTIONS
CHEMISTRY
COHERENT SCATTERING
DIFFRACTION
ELECTROCHEMISTRY
ELEMENTS
LITHIUM COMPOUNDS
METALS
OXIDATION
OXYGEN COMPOUNDS
PHASE STUDIES
POTASSIUM COMPOUNDS
SCATTERING
SODIUM COMPOUNDS
THERMODYNAMICS
TRANSITION ELEMENT COMPOUNDS
VANADATES
VANADIUM COMPOUNDS
X-RAY DIFFRACTION
360602* -- Other Materials-- Structure & Phase Studies
ALKALI METAL COMPOUNDS
ALKALI METALS
CHEMICAL REACTIONS
CHEMISTRY
COHERENT SCATTERING
DIFFRACTION
ELECTROCHEMISTRY
ELEMENTS
LITHIUM COMPOUNDS
METALS
OXIDATION
OXYGEN COMPOUNDS
PHASE STUDIES
POTASSIUM COMPOUNDS
SCATTERING
SODIUM COMPOUNDS
THERMODYNAMICS
TRANSITION ELEMENT COMPOUNDS
VANADATES
VANADIUM COMPOUNDS
X-RAY DIFFRACTION