A potential novel rapid screening NMR approach to boundary film formation at solid interfaces in contact with ionic liquids

Forsyth, Maria, Kemp, Thomas F., Howlett, Patrick C., Sun, Jiazeng and Smith, Mark E. 2008, A potential novel rapid screening NMR approach to boundary film formation at solid interfaces in contact with ionic liquids, Journal of physical chemistry Part C : nanomaterials and interfaces, vol. 112, no. 36, pp. 13801-13804.

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Title A potential novel rapid screening NMR approach to boundary film formation at solid interfaces in contact with ionic liquids
Author(s) Forsyth, Maria
Kemp, Thomas F.
Howlett, Patrick C.
Sun, Jiazeng
Smith, Mark E.
Journal name Journal of physical chemistry Part C : nanomaterials and interfaces
Volume number 112
Issue number 36
Start page 13801
End page 13804
Publisher American Chemical Society
Place of publication Washington, D.C.
Publication date 2008-09-11
ISSN 1932-7447
1932-7455
1089-5639
1520-6106
1948-7185
Summary The boundary films generated on a series of inorganic compounds, typical of native films on metal and ceramic surfaces, when exposed to various ionic liquids (ILs) based on the trihexyl(tetradecyl)phosphonium cation have been characterized using multinuclear solid-state NMR. The NMR results indicate that SiO2 and Mg(OH)2 interact strongly with the anion and cation of each IL through a mechanism of adsorption of the anion and subsequent close proximity of the cation in a surface double layer (as observed through 1H−29Si cross polarization experiments). In contrast, Al2O3, MgO, ZnO, and ZrO2 appear less active, strongly suggesting the necessity of hydroxylated surface groups in order to enhance the generation of these interfacial films. Using solid-state NMR to characterize such interfaces not only has the potential to elucidate mechanisms of wear resistance and corrosion protection via ILs, but is also likely to allow their rapid screening for such durability applications.
Language eng
Field of Research 039999 Chemical Sciences not elsewhere classified
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2008, American Chemical Society
Persistent URL http://hdl.handle.net/10536/DRO/DU:30030125

Document type: Journal Article
Collection: Institute for Technology Research and Innovation
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