Non-equilibrium oxidation states of zirconium during early stages of metal oxidation
The chemical state of Zr during the initial, self-limiting stage of oxidation on single crystal zirconium (0001), with oxide thickness on the order of 1 nm, was probed by synchrotron x-ray photoelectron spectroscopy. Quantitative analysis of the Zr 3d spectrum by the spectrum reconstruction method d...
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| Format: | Article |
| Language: | en_US |
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American Institute of Physics (AIP)
2016
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| Online Access: | http://hdl.handle.net/1721.1/104888 https://orcid.org/0000-0003-0060-9417 https://orcid.org/0000-0002-2688-5666 |
| _version_ | 1811073148050735104 |
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| author | Senanayake, Sanjaya D. Ma, Wen Herbert, Francis William Yildiz, Bilge |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Senanayake, Sanjaya D. Ma, Wen Herbert, Francis William Yildiz, Bilge |
| author_sort | Senanayake, Sanjaya D. |
| collection | MIT |
| description | The chemical state of Zr during the initial, self-limiting stage of oxidation on single crystal zirconium (0001), with oxide thickness on the order of 1 nm, was probed by synchrotron x-ray photoelectron spectroscopy. Quantitative analysis of the Zr 3d spectrum by the spectrum reconstruction method demonstrated the formation of Zr[superscript 1+], Zr[superscript 2+], and Zr[superscript 3+] as non-equilibrium oxidation states, in addition to Zr[superscript 4+] in the stoichiometric ZrO2. This finding resolves the long-debated question of whether it is possible to form any valence states between Zr[superscript 0] and Zr[superscript 4+] at the metal-oxide interface. The presence of local strong electric fields and the minimization of interfacial energy are assessed and demonstrated as mechanisms that can drive the formation of these non-equilibrium valence states of Zr. |
| first_indexed | 2024-09-23T09:29:12Z |
| format | Article |
| id | mit-1721.1/104888 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:29:12Z |
| publishDate | 2016 |
| publisher | American Institute of Physics (AIP) |
| record_format | dspace |
| spelling | mit-1721.1/1048882022-09-26T11:44:11Z Non-equilibrium oxidation states of zirconium during early stages of metal oxidation Senanayake, Sanjaya D. Ma, Wen Herbert, Francis William Yildiz, Bilge Massachusetts Institute of Technology. Department of Materials Science and Engineering Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Massachusetts Institute of Technology. Laboratory for Electrochemical Interfaces Ma, Wen Herbert, Francis William Yildiz, Bilge The chemical state of Zr during the initial, self-limiting stage of oxidation on single crystal zirconium (0001), with oxide thickness on the order of 1 nm, was probed by synchrotron x-ray photoelectron spectroscopy. Quantitative analysis of the Zr 3d spectrum by the spectrum reconstruction method demonstrated the formation of Zr[superscript 1+], Zr[superscript 2+], and Zr[superscript 3+] as non-equilibrium oxidation states, in addition to Zr[superscript 4+] in the stoichiometric ZrO2. This finding resolves the long-debated question of whether it is possible to form any valence states between Zr[superscript 0] and Zr[superscript 4+] at the metal-oxide interface. The presence of local strong electric fields and the minimization of interfacial energy are assessed and demonstrated as mechanisms that can drive the formation of these non-equilibrium valence states of Zr. United States. Department of Energy. Office of Basic Energy Sciences(Contract No. DE-AC02-98CH10886) 2016-10-20T19:02:06Z 2016-10-20T19:02:06Z 2015-03 2015-01 Article http://purl.org/eprint/type/JournalArticle 0003-6951 1077-3118 http://hdl.handle.net/1721.1/104888 Ma, Wen, F. William Herbert, Sanjaya D. Senanayake, and Bilge Yildiz. "Non-equilibrium oxidation states of zirconium during early stages of metal oxidation." Applied Physics Letters, vol. 106, 2015, pp.101603. © 2015 AIP Publishing LLC. https://orcid.org/0000-0003-0060-9417 https://orcid.org/0000-0002-2688-5666 en_US http://dx.doi.org/10.1063/1.4914180 Applied Physics Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Institute of Physics (AIP) MIT web domain |
| spellingShingle | Senanayake, Sanjaya D. Ma, Wen Herbert, Francis William Yildiz, Bilge Non-equilibrium oxidation states of zirconium during early stages of metal oxidation |
| title | Non-equilibrium oxidation states of zirconium during early stages of metal oxidation |
| title_full | Non-equilibrium oxidation states of zirconium during early stages of metal oxidation |
| title_fullStr | Non-equilibrium oxidation states of zirconium during early stages of metal oxidation |
| title_full_unstemmed | Non-equilibrium oxidation states of zirconium during early stages of metal oxidation |
| title_short | Non-equilibrium oxidation states of zirconium during early stages of metal oxidation |
| title_sort | non equilibrium oxidation states of zirconium during early stages of metal oxidation |
| url | http://hdl.handle.net/1721.1/104888 https://orcid.org/0000-0003-0060-9417 https://orcid.org/0000-0002-2688-5666 |
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