Dependence on the crystallographic orientation of Au for the potential window of the electrical double-layer region in imidazolium-based ionic liquids

Autor: Hiroyuki Ueda, Soichiro Yoshimoto, Ryuichi Tsuji, Katsuhiko Nishiyama, Ryo Taguchi
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Electrochemistry Communications, Vol 20, Iss, Pp 26-28 (2012)
ISSN: 1388-2481
Popis: The influence of the alkyl chain length of the bis(trifluoromethylsulfonyl)imide-based ionic liquids 1-ethyl-3-methylimidazolium, 1-butyl-3-methylimidazolium, 1-hexyl-3-methylimidazolium, 1-methyl-3-octylimidazolium, and 1-decyl-3-methylimidazolium cation on the potential window was investigated with low-index Au single crystal electrodes by cyclic voltammetry. The potential window of the electrical double-layer region was found to depend on the crystallographic orientation of Au, which indicated a difference in the strength of cation adsorption on the Au substrate. The potential window of the electrical double-layer region was also dependent upon the alkyl chain length of the imidazolium cation. Keywords: Ionic liquid, Au single crystal electrochemistry, Cyclic voltammetry
Databáze: OpenAIRE