Search: onr:"swepub:oai:DiVA.org:uu-77449" >
Phase separation an...
Phase separation and charge localization in UHV-lithiated anatase TiO2 nanoparticles
-
- Richter, Jan Hinnerk (author)
- Uppsala universitet,Fysiska institutionen,Fysik I,Teoretisk magnetism,Fysik 1
-
- Henningsson, Anders (author)
- Uppsala universitet,Fysiska institutionen,Fysik I,Teoretisk magnetism
-
- Sanyal, Biplab (author)
- Uppsala universitet,Fysiska institutionen,Fysik I,Teoretisk magnetism,Theoretical Magnetism
-
show more...
-
- Karlsson, Patrik (author)
- Uppsala universitet,Fysiska institutionen,Fysik I,Teoretisk magnetism,Fysik 1
-
Andersson, M. P. (author)
-
- Uvdal, Per (author)
- Lund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
-
- Siegbahn, Hans (author)
- Uppsala universitet,Fysiska institutionen,Fysik I,Teoretisk magnetism,Fysik 1
-
- Eriksson, Olle (author)
- Uppsala universitet,Fysiska institutionen,Fysik I,Teoretisk magnetism,Theoretical Magnetism
-
- Sandell, Anders (author)
- Uppsala universitet,Fysik I,Teoretisk magnetism,Fysik 1
-
show less...
-
(creator_code:org_t)
- 2005
- 2005
- English.
-
In: Physical Review B. - 1098-0121. ; 71:23, s. 235419-
- Related links:
-
http://link.aps.org/...
-
show more...
-
http://dx.doi.org/10...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
https://lup.lub.lu.s...
-
show less...
Abstract
Subject headings
Close
- The insertion of lithium in anatase TiO2 nanoparticles under ultrahigh vacuum (UHV) conditions is studied using x-ray absorption spectroscopy (XAS) and resonant photoelectron spectroscopy (RPES) at the Ti L2,3 edge. It is demonstrated that XAS can be used to monitor the separation into an anatase phase and a lithium titanate phase of formal stoichiometry Li0.5TiO2. The initial state properties of the Ti 3d states of the lithium titanate phase are investigated using ab initio electronic structure calculations. The calculations show a correlation driven separation of Ti 3d states from the conduction band in agreement with previous studies. It is shown that Ti in different oxidation states (Ti3+ and Ti4+) is formed as a direct consequence of the electron-electron interaction. RPES and XAS spectra confirm the presence of electronically inequivalent Ti sites. The site-sensitivity of the RPES spectra at selected electron binding energies is found to be consistent with the calculations.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Keyword
- X-RAY-ABSORPTION
- TRANSITION-METAL COMPOUNDS
- LITHIUM INTERCALATION
- PHOTOELECTRON-SPECTROSCOPY
- ELECTRONIC-STRUCTURE
- ION INSERTION
- 2P
- LI0.5TIO2
- BATTERIES
- SPECTRA
- Condensed matter physics
- Kondenserade materiens fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database