Ge-Doped bismuth vanadate solid electrolytes: synthesis, phase diagram and electrical properties
The location of Ge-doped Bi4V2O11 solid solutions in the Bi2O3-V2O5-GeO 2 ternary phase diagram has been determined; a more detailed study of the Bi4V2O11-Bi2GeO5 join has been carried out and the phase diagram presented. The main mechanisms for solid solution formation appear to involve substitutio...
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| Format: | Article |
| Language: | English |
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Royal Society of Chemistry (RSC)
1994
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| Online Access: | http://psasir.upm.edu.my/id/eprint/112928/ http://psasir.upm.edu.my/id/eprint/112928/1/112928.pdf |
| _version_ | 1848866079251628032 |
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| author | Lee, Chnoong Kheng Tan, Meow Peng West, Anthony R. |
| author_facet | Lee, Chnoong Kheng Tan, Meow Peng West, Anthony R. |
| author_sort | Lee, Chnoong Kheng |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The location of Ge-doped Bi4V2O11 solid solutions in the Bi2O3-V2O5-GeO 2 ternary phase diagram has been determined; a more detailed study of the Bi4V2O11-Bi2GeO5 join has been carried out and the phase diagram presented. The main mechanisms for solid solution formation appear to involve substitution of both Ge and Bi into V sites, giving rise to the general formula Bi4+yV 2-2x-yGe2xO11-x-y: -0.04<y<0.23; 0<x<0.45 (not all values of x and y in these ranges). Conductivity of the α and γ polymorphs both on and off the Bi4V 2O11-Bi2GeO5 join generally decreases with increasing x after an initial increase. In addition, conductivity of the γ polymorph decreases with increasing Bi2O3 content, y; the highest conductivity was obtained at x = 0.305 and y = 0.07. |
| first_indexed | 2025-11-15T14:14:54Z |
| format | Article |
| id | upm-112928 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:14:54Z |
| publishDate | 1994 |
| publisher | Royal Society of Chemistry (RSC) |
| recordtype | eprints |
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| spelling | upm-1129282025-01-27T06:57:55Z http://psasir.upm.edu.my/id/eprint/112928/ Ge-Doped bismuth vanadate solid electrolytes: synthesis, phase diagram and electrical properties Lee, Chnoong Kheng Tan, Meow Peng West, Anthony R. The location of Ge-doped Bi4V2O11 solid solutions in the Bi2O3-V2O5-GeO 2 ternary phase diagram has been determined; a more detailed study of the Bi4V2O11-Bi2GeO5 join has been carried out and the phase diagram presented. The main mechanisms for solid solution formation appear to involve substitution of both Ge and Bi into V sites, giving rise to the general formula Bi4+yV 2-2x-yGe2xO11-x-y: -0.04<y<0.23; 0<x<0.45 (not all values of x and y in these ranges). Conductivity of the α and γ polymorphs both on and off the Bi4V 2O11-Bi2GeO5 join generally decreases with increasing x after an initial increase. In addition, conductivity of the γ polymorph decreases with increasing Bi2O3 content, y; the highest conductivity was obtained at x = 0.305 and y = 0.07. Royal Society of Chemistry (RSC) 1994 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/112928/1/112928.pdf Lee, Chnoong Kheng and Tan, Meow Peng and West, Anthony R. (1994) Ge-Doped bismuth vanadate solid electrolytes: synthesis, phase diagram and electrical properties. Journal of Materials Chemistry, 4 (4). pp. 525-528. ISSN 0959-9428; eISSN: 1364-5501 https://pubs.rsc.org/en/content/articlelanding/1994/jm/jm9940400525 10.1039/jm9940400525 |
| spellingShingle | Lee, Chnoong Kheng Tan, Meow Peng West, Anthony R. Ge-Doped bismuth vanadate solid electrolytes: synthesis, phase diagram and electrical properties |
| title | Ge-Doped bismuth vanadate solid electrolytes: synthesis, phase diagram and electrical properties |
| title_full | Ge-Doped bismuth vanadate solid electrolytes: synthesis, phase diagram and electrical properties |
| title_fullStr | Ge-Doped bismuth vanadate solid electrolytes: synthesis, phase diagram and electrical properties |
| title_full_unstemmed | Ge-Doped bismuth vanadate solid electrolytes: synthesis, phase diagram and electrical properties |
| title_short | Ge-Doped bismuth vanadate solid electrolytes: synthesis, phase diagram and electrical properties |
| title_sort | ge-doped bismuth vanadate solid electrolytes: synthesis, phase diagram and electrical properties |
| url | http://psasir.upm.edu.my/id/eprint/112928/ http://psasir.upm.edu.my/id/eprint/112928/ http://psasir.upm.edu.my/id/eprint/112928/ http://psasir.upm.edu.my/id/eprint/112928/1/112928.pdf |