Investigation of Multilayered Structures of Ionic Liquids on Graphite and Platinum Using Atomic Force Microscopy and Molecular Simulations

Autor: Zhichao Chen, Zixuan Li, Wei Zhao, Ray A. Matsumoto, Matthew W. Thompson, Oscar Morales-Collazo, Peter T. Cummings, Filippo Mangolini, Joan F. Brennecke
Rok vydání: 2022
Předmět:
Zdroj: Langmuir. 38:4036-4047
ISSN: 1520-5827
0743-7463
DOI: 10.1021/acs.langmuir.2c00024
Popis: The molecular-level orientation and structure of ionic liquids (ILs) at liquid-solid interfaces are significantly different than in the bulk. The interfacial ordering influences both IL properties, such as dielectric constants and viscosity, and their efficacy in devices, such as fuel cells and electrical capacitors. Here, we report the layered structures of four ILs on unbiased, highly ordered pyrolytic graphite (HOPG) and Pt(111) surfaces, as determined by atomic force microscopy. The ILs investigated are 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([emim][Tf
Databáze: OpenAIRE