scholarly journals Ionic liquid lubrication: influence of ion structure, surface potential and sliding velocity

2013 ◽  
Vol 15 (35) ◽  
pp. 14616 ◽  
Author(s):  
Hua Li ◽  
Mark W. Rutland ◽  
Rob Atkin
Keyword(s):  
Ionic Liquid ◽  
Surface Potential ◽  
Sliding Velocity ◽  
Ion Structure ◽  
Structure Surface

scholarly journals Study of the Lubricating Ability of Protic Ionic Liquid on an Aluminum–Steel Contact

Lubricants ◽  
2018 ◽  
Vol 6 (3) ◽  
pp. 66 ◽  
Author(s):  
Akshar Patel ◽  
Hong Guo ◽  
Patricia Iglesias
Keyword(s):  
Ionic Liquid ◽  
Friction And Wear ◽  
Constant Load ◽  
Economic Losses ◽  
Contact Friction ◽  
Wear Volume ◽  
Sliding Velocity ◽  
Protic Ionic Liquid ◽  
Wear Reduction ◽  
Pin On Disk

Contact friction between moving components leads to severe wear and failure of engineering parts, resulting in large economic losses. The lubricating ability of the protic ionic liquid, tri-[bis(2-hydroxyethylammonium)] citrate (DCi), was studied as a neat lubricant and as an additive in a mineral oil (MO) at various sliding velocities and constant load on an aluminum–steel contact using a pin-on-disk tribometer. Tribological tests were also performed at different concentrations of DCi. When DCi was used as an additive in MO, friction coefficient and wear volume were reduced for each sliding velocity, with a maximum friction and wear reduction of 16% and 40%, respectively, when 2 wt % DCi was added to MO at a sliding velocity of 0.15 m/s. Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX) were also applied to analyze the wear mechanism of the interface lubricated by MO and DCi as additive.

Exploring the Influence of Ionic Liquid Ion Structure on Cellulose Solvation

2019 ◽  
Vol 16 (49) ◽  
pp. 107-110
Author(s):  
Kathryn Eva Brown ◽  
Xinglian Geng ◽  
William McDanel ◽  
Wesley Henderson
Keyword(s):  
Ionic Liquid ◽  
Ion Structure

scholarly journals Thiol-Ene Click Synthesis of Adsorption Functionalized Poly(Ionic Liquid)s: Influence of the Mole Fraction of Pendant Enes

2021 ◽  
Author(s):  
Wen Li ◽  
Aili Wang ◽  
Tingting Ye ◽  
Siqiang Li ◽  
Minghua Wang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Mole Fraction ◽  
Kinetics Studies ◽  
Adsorption Performance ◽  
Degradation Rates ◽  
Significant Difference ◽  
Structure Surface ◽  
Poly Ionic Liquid ◽  
Click Synthesis

Abstract Adsorption functionalized poly(ionic liquid)s could be thiol-ene click synthesized within surfactant-free ionic liquid microemulsions. However, the influence of the mole fraction of pendant enes on the as-prepared polymer is still unclear. Herein, the influence of the mole fraction of pendant enes on the molecular structure, surface morphology, thermostability and adsorption performance of poly(ionic liquid)s were investigated in detail. To characterize the as-prepared polymers, FTIR, NMR, TGA, DSC, SEM and UV–vis were used, and the adsorption isotherm/kinetics studies were carried out. The results show that the mole fraction of pendant enes had a significant difference on the characterization of poly(ionic liquid)s. The lower mole fraction of pendant enes donated lower T10% value, slower degradation rates and lower Tg, and the value of 0.30 was the boundary of forming structure with various beading sizes and structure with various irregularly shaped apertures. In addition, poly(ionic liquid)s with different mole fraction of pendant enes all showed excellent adsorption performance to DR, also indicate remarkable potential in the application of dying wastewater treatment.

scholarly journals Ion structure controls ionic liquid near-surface and interfacial nanostructure

2015 ◽  
Vol 6 (1) ◽  
pp. 527-536 ◽  
Author(s):  
Aaron Elbourne ◽  
Kislon Voïtchovsky ◽  
Gregory G. Warr ◽  
Rob Atkin
Keyword(s):  
Atomic Force Microscopy ◽  
Ionic Liquid ◽  
Near Surface ◽  
3 Dimensional ◽  
Force Microscopy ◽  
Ion Structure ◽  
Atomic Force

In situ amplitude modulated atomic force microscopy (AM-AFM) has been used to resolve the 3-dimensional nanostructure of five protic ILs at and near the surface of mica.

The effects of surface absorbed monolayer microdiffraction patterns

1988 ◽  
Vol 46 ◽  
pp. 680-681
Author(s):  
M. Pan ◽  
J.M. Cowley
Keyword(s):  
Surface Potential ◽  
Electron Probe ◽  
Potential Distribution ◽  
Crystal Surface ◽  
Normal Direction ◽  
Surface Image ◽  
Extended Surface ◽  
Gas Molecules ◽  
Surface Nature ◽  
Electron Microdiffraction

Electron microdiffraction patterns, obtained when a small electron probe with diameter of 10-15 Å is directed to run parallel to and outside a flat crystal surface, are sensitive to the surface nature of the crystals. Dynamical diffraction calculations have shown that most of the experimental observations for a flat (100) face of a MgO crystal, such as the streaking of the central spot in the surface normal direction and (100)-type forbidden reflections etc., could be explained satisfactorily by assuming a modified image potential field outside the crystal surface. However the origin of this extended surface potential remains uncertain. A theoretical analysis by Howie et al suggests that the surface image potential should have a form different from above-mentioned image potential and also be smaller by several orders of magnitude. Nevertheless the surface potential distribution may in practice be modified in various ways, such as by the adsorption of a monolayer of gas molecules.

Sign in / Sign up

Export Citation Format

Share Document