XRD and Raman Spectroscopy Study of Fe solubility in Cerium Oxide
The solubility of Fe in CeO 2 was investigated for 3-50 mol% Fe. Powders were synthesized by the Pechini method in air. Raman spectroscopy and lattice parameter analysis revealed that the solubility limit of Fe in CeO 2 is less than 3 mol% for the present preparation conditions. The low solubility l...
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| creator | Zhao, Liang Bishop, Sean R. Hyodo, Junji Ishihara, Tatsumi Sasaki, Kazunari |
| description | The solubility of Fe in CeO
2
was investigated for 3-50 mol% Fe. Powders were synthesized by the Pechini method in air. Raman spectroscopy and lattice parameter analysis revealed that the solubility limit of Fe in CeO
2
is less than 3 mol% for the present preparation conditions. The low solubility limit was rationalized in terms of the much smaller ionic radius of Fe versus Ce. As a consequence, an approach to increase the Fe radii size through annealing in reducing conditions (humidified H
2
at 1100 ℃) was attempted. In this case, the more stable CeFeO
3
phase was observed by XRD, thereby indicating difficulty in obtaining Fe doped CeO
2
under reducing conditions, as well. |
| doi_str_mv | 10.1149/05040.0053ecst |
| format | Conference Proceeding |
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2
was investigated for 3-50 mol% Fe. Powders were synthesized by the Pechini method in air. Raman spectroscopy and lattice parameter analysis revealed that the solubility limit of Fe in CeO
2
is less than 3 mol% for the present preparation conditions. The low solubility limit was rationalized in terms of the much smaller ionic radius of Fe versus Ce. As a consequence, an approach to increase the Fe radii size through annealing in reducing conditions (humidified H
2
at 1100 ℃) was attempted. In this case, the more stable CeFeO
3
phase was observed by XRD, thereby indicating difficulty in obtaining Fe doped CeO
2
under reducing conditions, as well.</description><identifier>ISSN: 1938-5862</identifier><identifier>EISSN: 1938-6737</identifier><identifier>DOI: 10.1149/05040.0053ecst</identifier><language>eng</language><ispartof>ECS transactions, 2013, Vol.50 (40), p.53-58</ispartof><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c276t-79b6b98cc120670e17d1c7fb89df36c9d067e5b579a620db598561d3776703e23</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Zhao, Liang</creatorcontrib><creatorcontrib>Bishop, Sean R.</creatorcontrib><creatorcontrib>Hyodo, Junji</creatorcontrib><creatorcontrib>Ishihara, Tatsumi</creatorcontrib><creatorcontrib>Sasaki, Kazunari</creatorcontrib><title>XRD and Raman Spectroscopy Study of Fe solubility in Cerium Oxide</title><title>ECS transactions</title><description>The solubility of Fe in CeO
2
was investigated for 3-50 mol% Fe. Powders were synthesized by the Pechini method in air. Raman spectroscopy and lattice parameter analysis revealed that the solubility limit of Fe in CeO
2
is less than 3 mol% for the present preparation conditions. The low solubility limit was rationalized in terms of the much smaller ionic radius of Fe versus Ce. As a consequence, an approach to increase the Fe radii size through annealing in reducing conditions (humidified H
2
at 1100 ℃) was attempted. In this case, the more stable CeFeO
3
phase was observed by XRD, thereby indicating difficulty in obtaining Fe doped CeO
2
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2
was investigated for 3-50 mol% Fe. Powders were synthesized by the Pechini method in air. Raman spectroscopy and lattice parameter analysis revealed that the solubility limit of Fe in CeO
2
is less than 3 mol% for the present preparation conditions. The low solubility limit was rationalized in terms of the much smaller ionic radius of Fe versus Ce. As a consequence, an approach to increase the Fe radii size through annealing in reducing conditions (humidified H
2
at 1100 ℃) was attempted. In this case, the more stable CeFeO
3
phase was observed by XRD, thereby indicating difficulty in obtaining Fe doped CeO
2
under reducing conditions, as well.</abstract><doi>10.1149/05040.0053ecst</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1938-5862 |
| ispartof | ECS transactions, 2013, Vol.50 (40), p.53-58 |
| issn | 1938-5862 1938-6737 |
| language | eng |
| recordid | cdi_crossref_primary_10_1149_05040_0053ecst |
| source | IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link |
| title | XRD and Raman Spectroscopy Study of Fe solubility in Cerium Oxide |
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