Article
Effect of alkyl chain length on the adsorption and frictional behaviour of 1-alkyl-3-methylimidazolium chloride ionic liquid surfactants on gold surfaces
Colloids and Surfaces A: Physicochemical and Engineering Aspects
— 2011 — Elsevier
Key information
Authors:
Published in
03/05/2011
Abstract
A study comprising the adsorption and frictional behaviour of 1-alkyl-3-methylimidazolium chloride ionic liquids, [Cnmim][Cl] (with n = 10,12,14), deposited on gold surfaces at a fixed concentration of 0.07M was carried out using a quartz crystal microbalance (QCM), a nanotribometer and an atomicforce microscope (AFM). The size of the alkyl side-chain of the cation and the corresponding adsorption and frictional results correlate quite well. AFM morphological images support the reasoning put forward for the observed trends. They also suggest that the alkyl chain length of the cation plays an important role in the definition of the structure of the adsorbed aggregates. The ratio between the working concentrations and the critical micelle concentration of the studied ionic liquids is also an important factor.
Publication details
Authors in the community:
Ana Paula Valagão Amadeu do Serro
ist134419
Rogério Anacleto Cordeiro Colaço
ist13267
Benilde de Jesus Vieira Saramago
ist11322
José Nuno Aguiar Canongia Lopes
ist13160
Publication version
VoR - Version of Record
Publisher
Elsevier
Link to the publisher's version
https://www.sciencedirect.com/science/article/pii/S092777571100063X
Title of the publication container
Colloids and Surfaces A: Physicochemical and Engineering Aspects
First page or article number
361
Last page
366
Volume
377
Issue
1-3
Fields of Science and Technology (FOS)
materials-engineering - Materials engineering
Keywords
- Ionic liquid
- Adsorption
- Friction coefficient
- Morphology
- Gold surface
Publication language (ISO code)
eng - English
Rights type:
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