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NEXAFS multiple scattering calculations of KO2
Pedio, M; Wu ZY(吴自玉); Wu, ZY; Benfatto, M; Mascaraque, A; Michel, E; Crotti, C; Peloi, M; Comicioli, C
2001
发表期刊JOURNAL OF SYNCHROTRON RADIATION
卷号8期号:2页码:719-721
通讯作者CNR, ISM, Trieste, Italy ; Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy ; Univ Autonoma Madrid, Madrid, Spain ; CNR, IMAI, Trieste, Italy ; Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100039, Peoples R China
文章类型Article; Proceedings Paper
摘要Since many years the oxidation of alkali metals has being attracted much interest due to the catalytic properties of metal promoters and the simple electronic structure of alkali atoms. The alkali-oxides phase diagram indicates that the interaction of oxygen with alkali metals can lead to the formation of different atomic O2- ions and molecular O-2(-) and O-2(2-) ions. Potassium superoxide has been prepared in situ and high resolution O k-edge absorption NEXAFS spectra have been measured at the VUV beam-line at ELETTRA facility. The experimental data have been analyzed by multiple scattering approach deriving many geometrical and electronic details. In particular, we have found that the growth material structure is of the KO2 type with an O-O distance of about 1.35 Angstrom and that the transition involving single pi molecular empty state of the superoxide O-2(-) anion has a fine structure. Multiple Scattering self consistent calculation indicates that the bond between oxygen anion and K atom is totally ionic and that the fine structure is essentially due to solid state effects.
关键词X-ray absorption oxides molecular states
学科领域Instruments & Instrumentation; Optics; Physics
研究领域[WOS]Instruments & Instrumentation ; Optics ; Physics ; Instruments & Instrumentation ; Optics ; Physics
DOI10.1107/S0909049501000206
URL查看原文
语种英语
研究领域[WOS]Instruments & Instrumentation ; Optics ; Physics ; Instruments & Instrumentation ; Optics ; Physics
WOS类目Instruments & Instrumentation ; Optics ; Physics, Applied
WOS记录号WOS:000167298100210
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/238346
专题多学科研究中心
作者单位中国科学院高能物理研究所
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GB/T 7714
Pedio, M,Wu ZY,Wu, ZY,et al. NEXAFS multiple scattering calculations of KO2[J]. JOURNAL OF SYNCHROTRON RADIATION,2001,8(2):719-721.
APA Pedio, M.,吴自玉.,Wu, ZY.,Benfatto, M.,Mascaraque, A.,...&Comicioli, C.(2001).NEXAFS multiple scattering calculations of KO2.JOURNAL OF SYNCHROTRON RADIATION,8(2),719-721.
MLA Pedio, M,et al."NEXAFS multiple scattering calculations of KO2".JOURNAL OF SYNCHROTRON RADIATION 8.2(2001):719-721.
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