Nanoscale chemical and structural investigation of solid solution polyelemental transition metal oxide nanoparticles
Summary: Although it has been shown that configurational entropy can improve the structural stability in transition metal oxides (TMOs), little is known about the oxidation state of transition metals under random mixing of alloys. Such information is essential in understanding the chemical reactivit...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-02-01
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| Series: | iScience |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004223001098 |
| _version_ | 1797903321607962624 |
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| author | Abhijit H. Phakatkar Tolou Shokuhfar Reza Shahbazian-Yassar |
| author_facet | Abhijit H. Phakatkar Tolou Shokuhfar Reza Shahbazian-Yassar |
| author_sort | Abhijit H. Phakatkar |
| collection | DOAJ |
| description | Summary: Although it has been shown that configurational entropy can improve the structural stability in transition metal oxides (TMOs), little is known about the oxidation state of transition metals under random mixing of alloys. Such information is essential in understanding the chemical reactivity and properties of TMOs stabilized by configurational entropy. Herein, utilizing electron energy loss spectroscopy (EELS) technique in an aberration-corrected scanning transmission electron microscope (STEM), we systematically studied the oxidation state of binary (Mn, Fe)3O4, ternary (Mn, Fe, Ni)3O4, and quinary (Mn, Fe, Ni, Cu, Zn)3O4 solid solution polyelemental transition metal oxides (SSP-TMOs) nanoparticles. Our findings show that the random mixing of multiple elements in the form of solid solution phase not only promotes the entropy stabilization but also results in stable oxidation state in transition metals spanning from binary to quinary transition metal oxide nanoparticles. |
| first_indexed | 2024-04-10T09:31:02Z |
| format | Article |
| id | doaj.art-82a57e3e238c48c1a70cfb1e6c5d3aef |
| institution | Directory Open Access Journal |
| issn | 2589-0042 |
| language | English |
| last_indexed | 2024-04-10T09:31:02Z |
| publishDate | 2023-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj.art-82a57e3e238c48c1a70cfb1e6c5d3aef2023-02-19T04:27:00ZengElsevieriScience2589-00422023-02-01262106032Nanoscale chemical and structural investigation of solid solution polyelemental transition metal oxide nanoparticlesAbhijit H. Phakatkar0Tolou Shokuhfar1Reza Shahbazian-Yassar2Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, USADepartment of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, USA; Corresponding authorDepartment of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, IL, USA; Corresponding authorSummary: Although it has been shown that configurational entropy can improve the structural stability in transition metal oxides (TMOs), little is known about the oxidation state of transition metals under random mixing of alloys. Such information is essential in understanding the chemical reactivity and properties of TMOs stabilized by configurational entropy. Herein, utilizing electron energy loss spectroscopy (EELS) technique in an aberration-corrected scanning transmission electron microscope (STEM), we systematically studied the oxidation state of binary (Mn, Fe)3O4, ternary (Mn, Fe, Ni)3O4, and quinary (Mn, Fe, Ni, Cu, Zn)3O4 solid solution polyelemental transition metal oxides (SSP-TMOs) nanoparticles. Our findings show that the random mixing of multiple elements in the form of solid solution phase not only promotes the entropy stabilization but also results in stable oxidation state in transition metals spanning from binary to quinary transition metal oxide nanoparticles.http://www.sciencedirect.com/science/article/pii/S2589004223001098ChemistryInorganic materialsMaterials scienceMaterials chemistryMaterials synthesis |
| spellingShingle | Abhijit H. Phakatkar Tolou Shokuhfar Reza Shahbazian-Yassar Nanoscale chemical and structural investigation of solid solution polyelemental transition metal oxide nanoparticles iScience Chemistry Inorganic materials Materials science Materials chemistry Materials synthesis |
| title | Nanoscale chemical and structural investigation of solid solution polyelemental transition metal oxide nanoparticles |
| title_full | Nanoscale chemical and structural investigation of solid solution polyelemental transition metal oxide nanoparticles |
| title_fullStr | Nanoscale chemical and structural investigation of solid solution polyelemental transition metal oxide nanoparticles |
| title_full_unstemmed | Nanoscale chemical and structural investigation of solid solution polyelemental transition metal oxide nanoparticles |
| title_short | Nanoscale chemical and structural investigation of solid solution polyelemental transition metal oxide nanoparticles |
| title_sort | nanoscale chemical and structural investigation of solid solution polyelemental transition metal oxide nanoparticles |
| topic | Chemistry Inorganic materials Materials science Materials chemistry Materials synthesis |
| url | http://www.sciencedirect.com/science/article/pii/S2589004223001098 |
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