New oxide ion conducting solid electrolytes, Bi4V2O11: M; M = B, Al, Cr, Y, La
The compositional ranges of Bi4V2O11 solid solutions containing trivalent cations: B, Al, Cr, Y and La have been determined by means of a phase diagram study at solidus temperatures, ca. 850°C. At least three mechanisms for accommodating variable cation contents are required. These are nominally V →...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English English |
| Published: |
Royal Society of Chemistry
1996
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/35672/1/35672.pdf http://psasir.upm.edu.my/id/eprint/35672/7/jm9960600331.pdf http://psasir.upm.edu.my/id/eprint/35672/ http://pubs.rsc.org/en/content/articlelanding/1996/jm/jm9960600331#!divAbstract |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
my.upm.eprints.35672 |
|---|---|
| record_format |
eprints |
| spelling |
my.upm.eprints.356722024-08-05T06:41:18Z http://psasir.upm.edu.my/id/eprint/35672/ New oxide ion conducting solid electrolytes, Bi4V2O11: M; M = B, Al, Cr, Y, La Lee, Chnoong Kheng Bay, Boon Hong West, Anthony R. The compositional ranges of Bi4V2O11 solid solutions containing trivalent cations: B, Al, Cr, Y and La have been determined by means of a phase diagram study at solidus temperatures, ca. 850°C. At least three mechanisms for accommodating variable cation contents are required. These are nominally V → Bi, V → M, Bi → M; the first two also involve the formation of anion vacancies. The detailed mechanisms by which ions as different in size as B and La can enter the Bi4V2O11 structure cannot, however, be inferred from the phase diagrams. Phase diagrams at 500°C have much smaller solid-solution areas, indicating the stability and extent of the solid solutions to be very temperature-dependent. Conductivity studies show that La-, Y- and Al-doped materials, with a composition around Bi4V1.8M0.2O10.8, are the best conductors at 300°C with a conductivity value of up to 1.4 × 10–4Ω–1 cm–1. At 600°C, Al-doped materials have the highest conductivity, ca. 1 × 10–1Ω–1 cm–1. Conductivity Arrhenius plots show changes of slope associated with the phase transitions: α→β→γ for B, Al, Cr and β→γ for Y: data for La (γ-polymorph only) are almost linear. Royal Society of Chemistry 1996 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/35672/1/35672.pdf text en http://psasir.upm.edu.my/id/eprint/35672/7/jm9960600331.pdf Lee, Chnoong Kheng and Bay, Boon Hong and West, Anthony R. (1996) New oxide ion conducting solid electrolytes, Bi4V2O11: M; M = B, Al, Cr, Y, La. Journal of Materials Chemistry, 6 (3). pp. 331-335. ISSN 0959-9428; ESSN: 1364-5501 http://pubs.rsc.org/en/content/articlelanding/1996/jm/jm9960600331#!divAbstract 10.1039/JM9960600331 |
| institution |
Universiti Putra Malaysia |
| building |
UPM Library |
| collection |
Institutional Repository |
| continent |
Asia |
| country |
Malaysia |
| content_provider |
Universiti Putra Malaysia |
| content_source |
UPM Institutional Repository |
| url_provider |
http://psasir.upm.edu.my/ |
| language |
English English |
| description |
The compositional ranges of Bi4V2O11 solid solutions containing trivalent cations: B, Al, Cr, Y and La have been determined by means of a phase diagram study at solidus temperatures, ca. 850°C. At least three mechanisms for accommodating variable cation contents are required. These are nominally V → Bi, V → M, Bi → M; the first two also involve the formation of anion vacancies. The detailed mechanisms by which ions as different in size as B and La can enter the Bi4V2O11 structure cannot, however, be inferred from the phase diagrams. Phase diagrams at 500°C have much smaller solid-solution areas, indicating the stability and extent of the solid solutions to be very temperature-dependent. Conductivity studies show that La-, Y- and Al-doped materials, with a composition around Bi4V1.8M0.2O10.8, are the best conductors at 300°C with a conductivity value of up to 1.4 × 10–4Ω–1 cm–1. At 600°C, Al-doped materials have the highest conductivity, ca. 1 × 10–1Ω–1 cm–1. Conductivity Arrhenius plots show changes of slope associated with the phase transitions: α→β→γ for B, Al, Cr and β→γ for Y: data for La (γ-polymorph only) are almost linear. |
| format |
Article |
| author |
Lee, Chnoong Kheng Bay, Boon Hong West, Anthony R. |
| spellingShingle |
Lee, Chnoong Kheng Bay, Boon Hong West, Anthony R. New oxide ion conducting solid electrolytes, Bi4V2O11: M; M = B, Al, Cr, Y, La |
| author_facet |
Lee, Chnoong Kheng Bay, Boon Hong West, Anthony R. |
| author_sort |
Lee, Chnoong Kheng |
| title |
New oxide ion conducting solid electrolytes, Bi4V2O11: M; M = B, Al, Cr, Y, La |
| title_short |
New oxide ion conducting solid electrolytes, Bi4V2O11: M; M = B, Al, Cr, Y, La |
| title_full |
New oxide ion conducting solid electrolytes, Bi4V2O11: M; M = B, Al, Cr, Y, La |
| title_fullStr |
New oxide ion conducting solid electrolytes, Bi4V2O11: M; M = B, Al, Cr, Y, La |
| title_full_unstemmed |
New oxide ion conducting solid electrolytes, Bi4V2O11: M; M = B, Al, Cr, Y, La |
| title_sort |
new oxide ion conducting solid electrolytes, bi4v2o11: m; m = b, al, cr, y, la |
| publisher |
Royal Society of Chemistry |
| publishDate |
1996 |
| url |
http://psasir.upm.edu.my/id/eprint/35672/1/35672.pdf http://psasir.upm.edu.my/id/eprint/35672/7/jm9960600331.pdf http://psasir.upm.edu.my/id/eprint/35672/ http://pubs.rsc.org/en/content/articlelanding/1996/jm/jm9960600331#!divAbstract |
| _version_ |
1806690463374114816 |
| score |
13.211869 |