In Situ Probing of Ion Ordering at an Electrified Ionic Liquid/Au Interface

© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 29(2017), 27 vom: 01. Juli
1. Verfasser: Sitaputra, Wattaka (VerfasserIn)
Weitere Verfasser: Stacchiola, Dario, Wishart, James F, Wang, Feng, Sadowski, Jerzy T
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article electric double layers ionic liquids photoemission electron microscopy
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520 |a © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. 
520 |a Charge transport at the interface of electrodes and ionic liquids is critical for the use of the latter as electrolytes. A room-temperature ionic liquid, 1-ethyl-2,3-dimethylimidazolium bis(trifluoromethanesulfonyl)imide (EMMIM TFSI), is investigated in situ under applied bias voltage with a novel method using low-energy electron and photoemission electron microscopy. Changes in photoelectron yield as a function of bias applied to electrodes provide a direct measure of the dynamics of ion reconfiguration and electrostatic responses of the EMMIM TFSI. Long-range and correlated ionic reconfigurations that occur near the electrodes are found to be a function of temperature and thickness, which, in turn, relate to ionic mobility and different configurations for out-of-plane ordering near the electrode interfaces, with a critical transition in ion mobility for films thicker than three monolayers 
650 4 |a Journal Article 
650 4 |a electric double layers 
650 4 |a ionic liquids 
650 4 |a photoemission electron microscopy 
700 1 |a Stacchiola, Dario  |e verfasserin  |4 aut 
700 1 |a Wishart, James F  |e verfasserin  |4 aut 
700 1 |a Wang, Feng  |e verfasserin  |4 aut 
700 1 |a Sadowski, Jerzy T  |e verfasserin  |4 aut 
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