Characterization of Oxygen Dynamics in ZrWO.
The dynamics of oxygen motion in ZrWO have been characterized using O solid-state NMR. Rates of dynamic exchange have been extracted from magnetization transfer experiments over a temperature range of 40 to 226 °C, and distinct values for the associated activation barrier have been observed on eithe...
| Publicado en: | Journal of the American Chemical Society Vol. 127; no. 43; pp. 15175 - 15182 |
|---|---|
| Autores principales: | , , |
| Formato: | Artículo |
| Publicado: |
American Chemical Society
11/2/2005
|
| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=19032115&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 19032115 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 11/2/2005 vid: 127 iid: 43 pid: 997 pub: American Chemical Society artinfo: ui: 19032115 10.1021/ja054063z ppf: 15175 ppct: 7 formats: tig: atl: Characterization of Oxygen Dynamics in ZrWO. aug: au: Hampson, Matthew R. Evans, John S. O. Hodgkinson, Paul affil: Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United Kingdom. su: Ferromagnetism Photosynthetic oxygen evolution Magnetization Optical diffraction Magnetism Oxygen sug: subj: Ferromagnetism Photosynthetic oxygen evolution Magnetization Optical diffraction Magnetism Oxygen ab: The dynamics of oxygen motion in ZrWO have been characterized using O solid-state NMR. Rates of dynamic exchange have been extracted from magnetization transfer experiments over a temperature range of 40 to 226 °C, and distinct values for the associated activation barrier have been observed on either side of the order/disorder phase transition at ∼1 75°C. A detailed model for the dynamical process is proposed, which reconciles the observation of continuing oxygen dynamics in the low-temperature phase with the static order implied by earlier X-ray diffraction studies. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2005 holdings: @attributes: islocal: N |
|---|