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A potential novel rapid screening NMR approach to boundary film formation at solid interfaces in contact with ionic liquids
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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 C, Vol.112 (No.36). pp. 13801-13804. doi:10.1021/jp806096w
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Official URL: http://dx.doi.org/10.1021/jp806096w
Abstract
The boundary films generated oil a series of inorganic compounds, typical of native films oil metal and ceramic surfaces, when exposed to various ionic liquids (ILs) based oil the trihexyl(teti-adecyl)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 H-1-Si-29 cross polarization experiments). In contrast, Al2O3, MgO, ZnO, and ZrO2 appear less active, strongly suggesting the necessity of hydroxylated surface groups ill 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.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QD Chemistry | ||||
| Divisions: | Administration > Vice Chancellor's Office Faculty of Science > Physics |
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| Library of Congress Subject Headings (LCSH): | Boundary layer, Solid-liquid interfaces, Ionic solutions, Molecular dynamics -- Mathematical models | ||||
| Journal or Publication Title: | Journal of Physical Chemistry C | ||||
| Publisher: | American Chemical Society | ||||
| ISSN: | 1932-7447 | ||||
| Official Date: | 11 September 2008 | ||||
| Dates: |
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| Volume: | Vol.112 | ||||
| Number: | No.36 | ||||
| Number of Pages: | 4 | ||||
| Page Range: | pp. 13801-13804 | ||||
| DOI: | 10.1021/jp806096w | ||||
| Status: | Not Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC), University of Warwick, Australian Research Council (ARC) | ||||
| Grant number: | EP/17022913 (EPSRC), DP0451444 (ARC) |
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