期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 62, 期 -, 页码 44-47出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2015.11.005
关键词
Emmim][Tf2N ionic liquid; Gold single crystal; Potential of zero charge; Phase transition; Laser induced temperature jump; Cyclic voltammetry
资金
- MINECTO [CTQ2013-44083-P]
- MECD
The interface between Au(hkl) basal planes and the ionic liquid 1-Ethyl-2,3-dimethyl imidazolium bis(trifluoromethyl)sulfonil imide was investigated by using both cyclic voltammetry and laser,induced temperature jump. Cyclic voltammetry showed characteristic features, revealing surface sensitive processes at the interfaces Au(hkl)/[Ernmim][Tf2N]. From laser-induced heating the potential of maximum entropy (pme) is determined. Pme is close to the potential of zero charge (pzc) and, therefore, the technique provides relevant interfacial information. The following order for the pme values has been found: Au(111) > Au(100) > Au(110). This order correlates well with work function data and values of pzc in aqueous solutions. (c) 2015 Elsevier B.V. All rights reserved.
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