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Persistent URL
http://purl.org/net/epubs/work/36807
Record Status
Checked
Record Id
36807
Title
Large Impact of Particle Size on Insertion Reactions, a case for anatase LixTiO2,
Contributors
M Wagemaker
,
WJH Borghols
,
F M Mulder
Abstract
Insertion reactions are of key importance for Li ion and hydrogen storage materials and energy storage devices. The particle size dependence of insertion reactions has been investigated for lithiated anatase TiO2, revealing progressively increasing Li capacity and Li-ion solubility for decreasing particle sizes, strongly deviating from the expected Li-rich and Li-poor phase separation as occurs in the bulk material. The phase diagram alters significantly, changing the materials properties already at sizes as large as 40 nm. A rationale is found in the surface strain that occurs between the different intercalated phases, which becomes energetically too costly in small particles. In particular the observed particle size-induced solid solution behavior is expected to have fundamental and practical implications for two-phase lithium or hydrogen insertion reactions.
Organisation
CCLRC
,
ISIS-GEM
,
ISIS-POLARIS
Keywords
ISIS 2007
Funding Information
Related Research Object(s):
Licence Information:
Language
English (EN)
Type
Details
URI(s)
Local file(s)
Year
Journal Article
J Am Chem Soc
129, no. 14 (2007): 4323-4327.
doi:10.1021/ja067733p
2007
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