Heterogeneous reaction between Li and anatase TiO2 nanoparticles under ultra-high vacuum
(2013) In Physical Chemistry Chemical Physics 15(29). p.12283-12290- Abstract
- We demonstrate heterogeneous chemistry between Li and anatase TiO2 nanoparticles under UHV. The reduction of TiO2 upon formation of lithium oxide proceeds via two different schemes: one that reduces Ti4+ to Ti3+ and one that reduces Ti4+ directly to Ti2+. The second scheme sets in only after a critical degree of reduction (i.e. Li amount) has been reached (Li/Ti = 0.28) and is associated with restructuring of the film. Two films with different morphologies were compared and the results demonstrate that the reaction between Li and larger TiO2 structures (30-50 nm) is kinetically restricted while such effects were significantly less prominent for small particles (10 nm).
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3979382
- author
- Sandell, A. ; Walle, L. E. ; Blomquist, Jakob LU ; Uvdal, Per LU and Borg, A.
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Chemistry Chemical Physics
- volume
- 15
- issue
- 29
- pages
- 12283 - 12290
- publisher
- Royal Society of Chemistry
- external identifiers
-
- wos:000321271300033
- scopus:84880001924
- pmid:23775224
- ISSN
- 1463-9084
- DOI
- 10.1039/c3cp51600h
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Max-laboratory (011012005), Chemical Physics (S) (011001060)
- id
- 0f88f349-df9d-40ac-8d29-e385a160293e (old id 3979382)
- date added to LUP
- 2016-04-01 13:58:38
- date last changed
- 2022-02-19 08:30:42
@article{0f88f349-df9d-40ac-8d29-e385a160293e, abstract = {{We demonstrate heterogeneous chemistry between Li and anatase TiO2 nanoparticles under UHV. The reduction of TiO2 upon formation of lithium oxide proceeds via two different schemes: one that reduces Ti4+ to Ti3+ and one that reduces Ti4+ directly to Ti2+. The second scheme sets in only after a critical degree of reduction (i.e. Li amount) has been reached (Li/Ti = 0.28) and is associated with restructuring of the film. Two films with different morphologies were compared and the results demonstrate that the reaction between Li and larger TiO2 structures (30-50 nm) is kinetically restricted while such effects were significantly less prominent for small particles (10 nm).}}, author = {{Sandell, A. and Walle, L. E. and Blomquist, Jakob and Uvdal, Per and Borg, A.}}, issn = {{1463-9084}}, language = {{eng}}, number = {{29}}, pages = {{12283--12290}}, publisher = {{Royal Society of Chemistry}}, series = {{Physical Chemistry Chemical Physics}}, title = {{Heterogeneous reaction between Li and anatase TiO2 nanoparticles under ultra-high vacuum}}, url = {{http://dx.doi.org/10.1039/c3cp51600h}}, doi = {{10.1039/c3cp51600h}}, volume = {{15}}, year = {{2013}}, }