Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

New insights into the fundamental chemical nature of ionic liquid film formation on magnesium alloy surfaces

Tools
- Tools
+ Tools

Forsyth, Maria, Neil, Wayne C., Howlett, Patrick C., Macfarlane, Douglas R., Hinton, Bruce R. W., Rocher, Nathalie, Kemp, Thomas F. and Smith, Mark E. (2009) New insights into the fundamental chemical nature of ionic liquid film formation on magnesium alloy surfaces. ACS Applied Materials & Interfaces, 1 (5). pp. 1045-1052. doi:10.1021/am900023j ISSN 1944-8244.

Research output not available from this repository.

Request-a-Copy directly from author or use local Library Get it For Me service.

Official URL: http://dx.doi.org/10.1021/am900023j

Request Changes to record.

Abstract

Ionic liquids (ILs) based on trihexyltetradecylphosphonium coupled with either diphenylphosphate or bis(trifluoromethanesulfonyl)amide have been shown to react with magnesium alloy surfaces, leading to the formation a surface film that can improve the corrosion resistance of the alloy. The morphology and microstructure of the magnesium surface seems critical in determining the nature of the interphase, with grain boundary phases and intermetallics within the grain, rich in zirconium and zinc, showing almost no interaction with the IL and thereby resulting in a heterogeneous surface film. This has been explained, on the basis of solid-state NMR evidence, as being due to the extremely low reactivity of the native oxide films on the intermetallics (ZrO2 and ZnO) with the IL as compared with the magnesium-rich matrix where a magnesium hydroxide and/or carbonate inorganic surface is likely. Solid-state NMR characterization of the ZE41 alloy surface treated with the IL based on (Tf)(2)N- indicates that this anion reacts to form a metal fluoride rich surface in addition to an organic component. The diphenylphosphate anion also seems to undergo an additional chemical process on the metal surface, indicating that him formation on the metal is not a simple chemical interaction between the components of the IL and the substrate but may involve electrochemical processes.

Item Type: Journal Article
Subjects: T Technology
T Technology > TA Engineering (General). Civil engineering (General)
Journal or Publication Title: ACS Applied Materials & Interfaces
Publisher: American Chemical Society
ISSN: 1944-8244
Official Date: May 2009
Dates:
DateEvent
May 2009UNSPECIFIED
Volume: 1
Number: 5
Number of Pages: 8
Page Range: pp. 1045-1052
DOI: 10.1021/am900023j
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: Engineering and Physical Sciences Research Council (EPSRC), Australian Research Council (ARC), Australian Centre For Electromaterials Science, Australian Postgraduate Award

Data sourced from Thomson Reuters' Web of Knowledge

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item
twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us