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The electronic structure of mesoscopic NiO particles

✍ Scribed by L. Soriano; M. Abbate; J. Vogel; J.C. Fuggle; A. Fernández; A.R. González-Elipe; M. Sacchi; J.M. Sanz

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
430 KB
Volume
208
Category
Article
ISSN
0009-2614

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✦ Synopsis

The electronic structure of mesoscopic NiO particles was studied by means of soft X-ray absorption spectroscopy. The Ni 2p spectra show convincingly that the changes in the electronic structure of mesoscopic NiO do not involve Ni'+ as previously thought. The 0 1s spectra show that the minority Ni es band is split by crystal field distortions related to defects and the large surface-to-volume ratio in this material. Other effects in the spectra, minor changes and extra broadening, are attributed to lattice disorder.

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The electronic structure of an oxygen de
The electronic structure of an oxygen defect in NiO (100)
✍ Lars G.M. Pettersson; Gianfranco Pacchioni 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 550 KB

The electronic structure of an oxygen defect in the NiO ( 100) surface is obtained from embedded N&OS and N&O, cluster models. No evidence of either Ni3+ , or metallic Ni" atoms associated with the defect is found. The peak at the higher binding energy ("Ni3+") in the Ni( 2p) XPS of Ar+-sputtered Ni