scholarly journals Structural effects in nanotribology of nanoscale films of ionic liquids confined between metallic surfaces

2021 ◽  
Vol 23 (38) ◽  
pp. 22174-22183
Author(s):  
Silvia Di Lecce ◽  
Alexei A. Kornyshev ◽  
Michael Urbakh ◽  
Fernando Bresme
Keyword(s):  
Ionic Liquids ◽  
Structural Effects ◽  
Metallic Surfaces ◽  
Gold Surfaces ◽  
Orientational Disorder ◽  
Lubrication Performance ◽  
Nanoscale Films

Gold surfaces induce orientational disorder in ionic liquids under nanoconfinement conditions, influencing their lateral order and lubrication performance.

Structural effects on dynamic and energetic properties of mixtures of ionic liquids and water

2017 ◽  
Vol 242 ◽  
pp. 204-212 ◽  
Author(s):  
Pablo B. Sánchez ◽  
Josefa García ◽  
Agílio A.H. Pádua
Keyword(s):  
Ionic Liquids ◽  
Structural Effects ◽  
Energetic Properties

scholarly journals Nanostructure Determines the Wettability of Gold Surfaces by Ionic Liquid Ultrathin Films

2021 ◽  
Vol 9 ◽  
Author(s):  
Francesca Borghi ◽  
Matteo Mirigliano ◽  
Cristina Lenardi ◽  
Paolo Milani ◽  
Alessandro Podestà
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Ultrathin Films ◽  
Gold Nanostructures ◽  
Lateral Extension ◽  
Gold Surfaces ◽  
Energy Devices ◽  
Biomedical Technologies ◽  
Electrified Interfaces

Ionic liquids are employed in energy storage/harvesting devices, in catalysis and biomedical technologies, due to their tunable bulk and interfacial properties. In particular, the wettability and the structuring of the ionic liquids at the interface are of paramount importance for all those applications exploiting ionic liquids tribological properties, their double layer organization at electrified interfaces, and interfacial chemical reactions. Here we report an experimental investigation of the wettability and organization at the interface of an imidazolium-based ionic liquid ([Bmim][NTf2]) and gold surfaces, that are widely used as electrodes in energy devices, electronics, fluidics. In particular, we investigated the role of the nanostructure on the resulting interfacial interactions between [Bmim][NTf2] and atom-assembled or cluster-assembled gold thin films. Our results highlight the presence of the solid-like structured ionic liquid domains extending several tens of nanometres far from the gold interfaces, and characterized by different lateral extension, according to the wettability of the gold nanostructures by the IL liquid-phase.

Structural Effects of Anions and Cations on the Aggregation Behavior of Ionic Liquids in Aqueous Solutions

2008 ◽  
Vol 112 (51) ◽  
pp. 16682-16689 ◽  
Author(s):  
Huiyong Wang ◽  
Jianji Wang ◽  
Shibiao Zhang ◽  
Xiaopeng Xuan
Keyword(s):  
Ionic Liquids ◽  
Aqueous Solutions ◽  
Aggregation Behavior ◽  
Structural Effects ◽  
Anions And Cations

Investigation of Anion Structural Effects on Solute‐Solvent Interactions of Ionic Liquids with DMF by Volumetric, Acoustic, Viscometric Properties and COSMO‐RS Calculations

2021 ◽  
Vol 6 (12) ◽  
pp. 2994-3005
Author(s):  
Venkatramana Losetty ◽  
C. Hazarathaiah Yadav ◽  
Cecilia Devi Wilfred ◽  
Ramesh L. Gardas
Keyword(s):  
Ionic Liquids ◽  
Structural Effects ◽  
Solvent Interactions

scholarly journals Brønsted acidic ionic liquids for cellulose hydrolysis in an aqueous medium: structural effects on acidity and glucose yield

RSC Advances ◽  
2018 ◽  
Vol 8 (26) ◽  
pp. 14623-14632 ◽  
Author(s):  
Shiori Suzuki ◽  
Yuko Takeoka ◽  
Masahiro Rikukawa ◽  
Masahiro Yoshizawa-Fujita
Keyword(s):  
Catalytic Activity ◽  
Ionic Liquids ◽  
Microwave Irradiation ◽  
Theoretical Calculations ◽  
Cellulose Hydrolysis ◽  
Acidity Function ◽  
Structural Effects ◽  
Glucose Yield ◽  
Acidic Ionic Liquids ◽  
Hammett Acidity Function

Using Brønsted acidic ionic liquids with various structures, their acidic catalytic activity for cellulose hydrolysis assisted by microwave irradiation was assessed using the Hammett acidity function (H0) and theoretical calculations.

Composition and structural effects on the adsorption of ionic liquids onto activated carbon

2013 ◽  
Vol 15 (9) ◽  
pp. 1752 ◽  
Author(s):  
Jesús Lemus ◽  
Catarina M. S. S. Neves ◽  
Carlos F. C. Marques ◽  
Mara G. Freire ◽  
João A. P. Coutinho ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Activated Carbon ◽  
Structural Effects

scholarly journals Designing Imidazolium Poly(amide-amide) and Poly(amide-imide) Ionenes and Their Interactions with Mono- and Tris(imidazolium) Ionic Liquids

Polymers ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1254
Author(s):  
Kathryn E. O’Harra ◽  
Danielle M. Noll ◽  
Irshad Kammakakam ◽  
Emily M. DeVriese ◽  
Gala Solis ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Thermal Properties ◽  
Small Molecules ◽  
Self Assembly ◽  
High Performance ◽  
Structural Changes ◽  
Intermolecular Forces ◽  
Polymer Composition ◽  
Structural Effects ◽  
Imidazolium Ionic Liquids

Here we introduce the synthesis and thermal properties of a series of sophisticated imidazolium ionenes with alternating amide-amide or amide-imide backbone functionality, and investigate the structural effects of mono(imidazolium) and unprecedented tris(imidazolium) ionic liquids (ILs) in these ionenes. The new set of poly(amide-amide) (PAA) and poly(amide-imide) (PAI) ionenes represent the intersection of conventional high-performance polymers with the ionene archetype–presenting polymers with alternating functional and ionic elements precisely sequenced along the backbone. The effects of polymer composition on the thermal properties and morphology were analyzed. Five distinct polymer backbones were synthesized and combined with a stoichiometric equivalent of the IL 1-benzyl-3-methylimidazolium bistriflimide ([Bnmim][Tf2N]), which were studied to probe the self-assembly, structuring, and contributions of intermolecular forces when IL is added. Furthermore, three polyamide (PA) or polyimide (PI) ionenes with simpler xylyl linkages were interfaced with [Bnmim][Tf2N] as well as a novel amide-linked tris(imidazolium) IL, to demonstrate the structural changes imparted by the inclusion of functional, ionic additives dispersed within the ionene matrix. This work highlights the possibilities for utilizing concepts from small molecules which exhibit supramolecular self-assembly to guide creative design and manipulate the structuring of ionenes.

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