Multicomponent equiatomic rare earth oxides
Multicomponent rare earth oxide (REO) nanocrystalline powders containing up to seven equiatomic rare earth elements were successfully synthesized in a single-phase CaF2-type (Fm-3 m) structure. The addition of more than six elements resulted in the formation of a secondary phase. Annealing at 1000°C...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2017-03-01
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| Series: | Materials Research Letters |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/21663831.2016.1220433 |
| _version_ | 1818187263595511808 |
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| author | Ruzica Djenadic Abhishek Sarkar Oliver Clemens Christoph Loho Miriam Botros Venkata S. K. Chakravadhanula Christian Kübel Subramshu S. Bhattacharya Ashutosh S. Gandhi Horst Hahn |
| author_facet | Ruzica Djenadic Abhishek Sarkar Oliver Clemens Christoph Loho Miriam Botros Venkata S. K. Chakravadhanula Christian Kübel Subramshu S. Bhattacharya Ashutosh S. Gandhi Horst Hahn |
| author_sort | Ruzica Djenadic |
| collection | DOAJ |
| description | Multicomponent rare earth oxide (REO) nanocrystalline powders containing up to seven equiatomic rare earth elements were successfully synthesized in a single-phase CaF2-type (Fm-3 m) structure. The addition of more than six elements resulted in the formation of a secondary phase. Annealing at 1000°C for 1 h led to the formation of a single-phase (Ia-3) even in the 7-component system. In the absence of cerium (Ce4+), secondary phases were observed irrespective of the number of cations or the extent of thermal treatment indicating that cerium cations played a crucial role in stabilizing the multicomponent REOs into a phase pure structure. |
| first_indexed | 2024-12-11T23:08:15Z |
| format | Article |
| id | doaj.art-c46fea70a34f4e58b1b07ab40124823f |
| institution | Directory Open Access Journal |
| issn | 2166-3831 |
| language | English |
| last_indexed | 2024-12-11T23:08:15Z |
| publishDate | 2017-03-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Materials Research Letters |
| spelling | doaj.art-c46fea70a34f4e58b1b07ab40124823f2022-12-22T00:46:51ZengTaylor & Francis GroupMaterials Research Letters2166-38312017-03-015210210910.1080/21663831.2016.12204331220433Multicomponent equiatomic rare earth oxidesRuzica Djenadic0Abhishek Sarkar1Oliver Clemens2Christoph Loho3Miriam Botros4Venkata S. K. Chakravadhanula5Christian Kübel6Subramshu S. Bhattacharya7Ashutosh S. Gandhi8Horst Hahn9Helmholtz Institute Ulm—Electrochemical Energy StorageInstitute of Nanotechnology, Karlsruhe Institute of TechnologyJoint Research Laboratory Nanomaterials—Technische Universität Darmstadt and Karlsruhe Institute of TechnologyJoint Research Laboratory Nanomaterials—Technische Universität Darmstadt and Karlsruhe Institute of TechnologyJoint Research Laboratory Nanomaterials—Technische Universität Darmstadt and Karlsruhe Institute of TechnologyHelmholtz Institute Ulm—Electrochemical Energy StorageInstitute of Nanotechnology, Karlsruhe Institute of TechnologyIndian Institute of Technology MadrasIndian Institute of Technology BombayHelmholtz Institute Ulm—Electrochemical Energy StorageMulticomponent rare earth oxide (REO) nanocrystalline powders containing up to seven equiatomic rare earth elements were successfully synthesized in a single-phase CaF2-type (Fm-3 m) structure. The addition of more than six elements resulted in the formation of a secondary phase. Annealing at 1000°C for 1 h led to the formation of a single-phase (Ia-3) even in the 7-component system. In the absence of cerium (Ce4+), secondary phases were observed irrespective of the number of cations or the extent of thermal treatment indicating that cerium cations played a crucial role in stabilizing the multicomponent REOs into a phase pure structure.http://dx.doi.org/10.1080/21663831.2016.1220433rare earth oxideentropysingle phasenanocrystalline |
| spellingShingle | Ruzica Djenadic Abhishek Sarkar Oliver Clemens Christoph Loho Miriam Botros Venkata S. K. Chakravadhanula Christian Kübel Subramshu S. Bhattacharya Ashutosh S. Gandhi Horst Hahn Multicomponent equiatomic rare earth oxides Materials Research Letters rare earth oxide entropy single phase nanocrystalline |
| title | Multicomponent equiatomic rare earth oxides |
| title_full | Multicomponent equiatomic rare earth oxides |
| title_fullStr | Multicomponent equiatomic rare earth oxides |
| title_full_unstemmed | Multicomponent equiatomic rare earth oxides |
| title_short | Multicomponent equiatomic rare earth oxides |
| title_sort | multicomponent equiatomic rare earth oxides |
| topic | rare earth oxide entropy single phase nanocrystalline |
| url | http://dx.doi.org/10.1080/21663831.2016.1220433 |
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