Temperature-Dependent Delocalization of Oxygen Vacancies in La-Substituted CeO2
Source abstract
Abstract
Signature of oxygen ion conductivity in hydrothermally synthesized Ce1–xLaxO2−δ (0 ≤ x ≤ 0.50) solid-electrolyte samples has been investigated. Room-temperature Raman spectroscopy clearly shows the presence of intrinsic and extrinsic defect modes related to oxygen vacancies. Evidence of delocalization of oxygen vacancies has been analyzed through the combination of temperature-dependent Raman spectroscopy and optical absorption spectroscopy for the first time in these solid ionic conductors. Therefore, the temperature-dependent softening of oxygen defect mode in Raman spectroscopy and broadening of a feature related to oxygen defects in optical absorption spectroscopy can be an efficient tool to probe the signature of oxygen ion conductivity.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advancements in Solid Oxide Fuel Cells · Electronic and Structural Properties of Oxides · Magnetic and transport properties of perovskites and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Material Research Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol, Indore 453552, M.P., India
Advanced Materials Research Laboratory, Department of Physics, RTM Nagpur University, Nagpur 440033, M.S., India
Funding
Science and Engineering Research Board · Department of Science and Technology, Ministry of Science and Technology, India
References (60)
Show source-provided references
1. 10.1021/acs.chemmater.2c0052610.1021/acs.chemmater.2c00526 ↗
2. 10.1002/aenm.20210065410.1002/aenm.202100654 ↗
3. 10.1016/j.ssi.2018.03.00510.1016/j.ssi.2018.03.005 ↗
4. 10.1021/cm201617d10.1021/cm201617d ↗
5. 10.1021/acsaem.1c0411610.1021/acsaem.1c04116 ↗
6. 10.1016/j.actamat.2005.06.02710.1016/j.actamat.2005.06.027 ↗
7. 10.1007/s10008-021-05074-x10.1007/s10008-021-05074-x ↗
8. 10.1007/BF0237561810.1007/BF02375618 ↗
9. 10.1016/j.matchemphys.2019.12234510.1016/j.matchemphys.2019.122345 ↗
10. 10.1016/j.ceramint.2022.04.28510.1016/j.ceramint.2022.04.285 ↗
11. 10.1007/s10854-022-08273-y10.1007/s10854-022-08273-y ↗
12. 10.1016/j.jpowsour.2014.06.00610.1016/j.jpowsour.2014.06.006 ↗
13. 10.1039/D0DT02954H10.1039/D0DT02954H ↗
14. 10.1021/acs.chemmater.9b0204410.1021/acs.chemmater.9b02044 ↗
15. 10.1149/2.1191908jes10.1149/2.1191908jes ↗
16. 10.1021/acs.chemmater.1c0015610.1021/acs.chemmater.1c00156 ↗
17. 10.1016/j.electacta.2006.04.03210.1016/j.electacta.2006.04.032 ↗
18. 10.1016/S0167-2738(02)00121-210.1016/S0167-2738(02)00121-2 ↗
19. 10.1149/1.135919810.1149/1.1359198 ↗
20. 10.1557/JMR.2001.044210.1557/JMR.2001.0442 ↗
21. 10.1016/j.ssi.2010.09.02510.1016/j.ssi.2010.09.025 ↗
22. 10.1002/adfm.20050018610.1002/adfm.200500186 ↗
23. 10.1111/j.1551-2916.2009.03273.x10.1111/j.1551-2916.2009.03273.x ↗
24. 10.5185/amlett.2013.fdm.0310.5185/amlett.2013.fdm.03 ↗
25. 10.1088/1361-648X/ab119510.1088/1361-648X/ab1195 ↗
26. 10.1103/PhysRevB.104.24520510.1103/PhysRevB.104.245205 ↗
27. 10.1063/1.499793910.1063/1.4997939 ↗
28. 10.1016/j.matchemphys.2020.12379210.1016/j.matchemphys.2020.123792 ↗
29. 10.1063/1.501087010.1063/1.5010870 ↗
30. 10.1021/acs.jpcc.0c0913310.1021/acs.jpcc.0c09133 ↗
31. 10.1016/j.ssi.2019.11515710.1016/j.ssi.2019.115157 ↗
32. 10.1021/acsomega.1c0505710.1021/acsomega.1c05057 ↗
33. 10.1016/j.jmmm.2020.16721010.1016/j.jmmm.2020.167210 ↗
34. 10.1021/acs.jpcc.1c0953710.1021/acs.jpcc.1c09537 ↗
35. 10.1103/PhysRevB.104.03510110.1103/PhysRevB.104.035101 ↗
36. 10.1002/jrs.589410.1002/jrs.5894 ↗
37. 10.1021/acs.chemmater.9b0470310.1021/acs.chemmater.9b04703 ↗
38. 10.1088/1748-0221/13/11/T1100310.1088/1748-0221/13/11/T11003 ↗
39. 10.1016/j.solidstatesciences.2021.10658210.1016/j.solidstatesciences.2021.106582 ↗
40. 10.1021/acs.jpcc.1c0020310.1021/acs.jpcc.1c00203 ↗
41. 10.1007/s11356-017-0934-x10.1007/s11356-017-0934-x ↗
42. 10.1016/j.matchemphys.2019.12214810.1016/j.matchemphys.2019.122148 ↗
43. 10.1107/S002188986900655810.1107/S0021889869006558 ↗
44. 10.1002/adma.1990002030410.1002/adma.19900020304 ↗
45. 10.1149/1.156726510.1149/1.1567265 ↗
46. 10.1016/j.ssi.2004.06.01510.1016/j.ssi.2004.06.015 ↗
47. 10.1023/A:102326932665110.1023/A:1023269326651 ↗
48. 10.1016/j.jallcom.2014.01.24210.1016/j.jallcom.2014.01.242 ↗
49. 10.1103/PhysRevB.50.1329710.1103/PhysRevB.50.13297 ↗
50. 10.1016/j.cattod.2020.03.04410.1016/j.cattod.2020.03.044 ↗
51. 10.1021/acs.jpcc.7b0664310.1021/acs.jpcc.7b06643 ↗
52. 10.1039/C4TA04820B10.1039/C4TA04820B ↗
53. 10.1016/j.ssc.2011.03.02910.1016/j.ssc.2011.03.029 ↗
54. 10.1016/j.materresbull.2012.11.07310.1016/j.materresbull.2012.11.073 ↗
55. 10.1364/JOSA.38.00044810.1364/JOSA.38.000448 ↗
56. 10.1364/JOSAA.21.00193310.1364/JOSAA.21.001933 ↗
57. 10.1021/jp203921m10.1021/jp203921m ↗
58. 10.1021/jp505175t10.1021/jp505175t ↗
59. 10.1016/j.cap.2012.07.01410.1016/j.cap.2012.07.014 ↗
60. 10.1021/jp208003410.1021/jp2080034 ↗