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Direct observation of Au(111) electrode surface structure in bis(trifluoromethylsulfonyl)amide-based ionic liquids using surface X-ray scattering

Author:
Tamura, Kazuhisa  Miyaguchi, Shin-ichiro  Sakaue, Kiyoshi  Nishihata, Yasuo  Mizuki, Jun'ichiro  


Journal:
ELECTROCHEMISTRY COMMUNICATIONS


Issue Date:
2011


Abstract(summary):

The surface structure of Au(111) electrodes in hydrophobic ionic liquids, 1-butyl-1-methylpyrrolidinium bis (trifluoromethylsulfonyl)amide ([BMP]TFSA) and 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl) amide ([BMIM]TFSA) was investigated using surface X-ray scattering. In both [BMP]TFSA and [BMIM]TFSA, the reconstruction of the surface structure was observed and the phase transition between the (1 x 1) and the reconstructed structure was found to be reversible. On the other hand, the area of the reconstructed structure in [BMP]TFSA was larger than that in [BMIM]TFSA. These differences suggest that the [BMIM](+)-Au interaction is stronger than the [BMP](+)-Au interaction. (C) 2011 Elsevier B.V. All rights reserved.


Page:
411---413


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