Here we report the bias-evolution of electrical double layer structure an ionic liquid on highly ordered pyrolytic graphite measured by atomic force microscopy. We observe reconfiguration under applied bias and orientational transitions in Stern layer. The synergy between molecular dynamics simulation experiment provides a comprehensive picture structural phenomena long short-range interactions, which improves our understanding mechanism charge storage level.

Molecular dynamics (MD) simulations of 1-alkyl-1-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide ([CnMPy][Tf2N], n = 3, 4, 6, 8, 10) were conducted using an all-atom model. Radial distribution functions (RDF) computed and structure generated to compare with new X-ray scattering experimental results, reported herein. The peaks in the generally shift lower Q values increased temperature for all liquids this series. However, first sharp diffraction peak (FSDP) longer alkyl chain displays...

Five different ionic liquids containing the tetracyanoborate anion were synthesized and evaluated for CO2 separation performance. Measured solubility values exceptionally high compared to analogous with anions ranged from 0.128 mol L−1 atm−1 0.148 atm−1. In addition, permeability CO2/N2 selectivity measured using a supported liquid membrane architecture separations performance of membranes exceeded Robeson upper bound. These results establish distinct potential tetracyanoborate, [B(CN)4], CO2.

Abstract The search for a better carbon dioxide (CO 2 ) capture material is attracting significant attention because of an increase in anthropogenic emissions. Porous materials are considered to be among the most promising candidates. A series porous, nitrogen‐doped carbons CO have been developed by using high‐yield carbonization reactions from task‐specific ionic liquid (TSIL) precursors. Owing strong interactions between molecules and nitrogen‐containing basic sites within framework,...

In this work, we provide new experimental evidence for chain length-dependent self-aggregation in room temperature ionic liquids (RTILs) using fluorescence correlation spectroscopy (FCS). studying a homologous series of N-alkyl-N-methylpyrrolidinium bis(trifluoromethylsulfonyl) imide, [CnMPy][Tf2N] RTILs varying alkyl length (n = 3, 4, 6, 8, and 10), biphasic rhodamine 6G solute diffusion dynamics were observed; both the fast slow coefficients decreased with increasing length, relative...

Electrochemical double layer capacitors (EDLC) are rapidly emerging as a promising energy storage technology offering extremely large power densities. Despite significant experimental progress, nanoscale operation mechanisms of the EDLCs remain poorly understood and it is difficult to separate processes at multiple time length scales involved in including that charging ionic mass transport. Here we explore functionality EDLC microporous carbon electrodes using combination classical...

Metal-free N-doped carbons with controllable pore texture were derived from carbonization of ionic liquid and served as catalysts for oxygen reduction reaction (ORR) an activity comparable to that Pt/C. The investigation shows both the ORR kinetics are strongly correlated size distribution.

A series of novel thiazolium-bis(triflamide) based ionic liquids has been synthesized and characterized. Physicochemical properties the such as thermal stability, phase transitions, infrared spectra were analyzed compared to imidazolium-based congeners. Several unique classes ancillary substitutions are examined with respect impacts on overall structure, in addition their carbon dioxide absorption supported ionic-liquid membranes for gas separation.

The expansion of porous carbon electrodes in a room temperature ionic liquid (RTIL) is studied using situ atomic force microscopy (AFM). effect surface area and pore size/pore size distribution on the observed strain profile ion kinetics examined. Additionally, influence potential scan rate response investigated. By analyzing data at various rates, information different materials obtained. Molecular dynamics (MD) simulations are performed to compare with provide molecular insights into...

NMR spectroscopy and time-resolved fluorescence anisotropy decay (TRFAD) are two of the most commonly used methods to study solute-solvent interactions. However, only a few studies have been reported date using combined TRFAD approach systematically investigate overall picture diffusional rotational dynamics both solute solvent. In this paper, we probe fluorescent rhodamine dye in pyrrolidinium-based room temperature ionic liquid (RTIL), an emergent environmentally friendly solvent type...

We developed lipid-like ionic liquids, containing 2-mercaptoimidazolium and 2-mercaptothiazolinium headgroups tethered to two long saturated alkyl chains, as carriers for in vitro delivery of plasmid HEK DNA into 293T cells. employed a combination modular design, synthesis, X-ray analysis, computational modeling rationalize the self-assembly desired physicochemical biological properties. The results suggest that thioamide-derived liquids may serve platform lipid-mediated gene delivery. This...

A series of 1,2,4-triazolium-based ionic liquids have been synthesized and evaluated for their use in supported liquid membrane based CO2 separations. The properties these triazolium-based compounds proven sensitive to isomeric substitutions, such as isopropyl propyl groups, well ortho para substitutions the aryl derivative compounds. While physical viscosity did not vary significantly between structural isomers, permeability, selectivity, solubility exhibited significant changes allowing...

Hierarchical nanoporous nitrogen-doped carbons were prepared from task specific ionic liquids having a bis-imidazolium motif linked with various organic groups. While ethyl chains linking the imidazolium ions afforded microporous-mesoporous carbons, long or aromatic groups resulted in microporous samples.

A novel family of nonadentate ligands based on the (5,6-diphenyl-1,2,4-triazin-3-yl)-picolinamide donor moiety has been synthesized from simple starting materials in high yield and purity. This group is an addition to neutral but first incorporate 1,2,4-triazine. Their ability extract a select lanthanides acidic aqueous solution correlated their meet ideal trigonal tricapped prismatic geometry that seen by actinides solution. The rate metallation was determined using UV/VIS spectroscopy with...

Abstract Postcombustion CO 2 capture has become a key component of greenhouse‐gas reduction as anthropogenic emissions continue to impact the environment. We report one‐step synthesis porous carbon materials using series task‐specific ionic liquids for adsorption . By varying structure liquid precursor, we were able control pore architecture and surface functional groups in this process leading adsorbents with high sorption capacities (up 4.067 mmol g −1 ) at 0 °C 1 bar. Added nitrogen led...

Extended metal atom chain (EMAC) complexes of first-row transition metals with metal-metal bonds have the potential to elicit unique magnetic properties and reactivities. Until now, library EMAC late-first-row was incomplete because omission a triiron species Fe-Fe bonding. Herein we report synthesis preliminary investigation first linear, triiron(II) complex containing close interactions. The is supported by three dianionic 2,6-bis[(trimethylsilyl)amido]pyridine ligands (L), an overall...

In recent years, the effect of molecular charge on rotational dynamics probe solutes in room-temperature ionic liquids (RTILs) has been a subject growing interest. For purpose extending our understanding charged solute behavior within RTILs, we have studied three illustrative xanthene fluorescent probes series N-alkylpyrrolidinium bis(trifluoromethylsulfonyl)imide ([Cnmpyr][Tf2N]) RTILs with different n-alkyl chain lengths (n = 3, 4, 6, 8, or 10) using time-resolved fluorescence anisotropy...

New family of SO₂F-functionalized ionic liquids.

Dispersible graphene-type carbon powders were prepared with metal halide-ionic liquids as the source and Magadiite, a layered sodium silicate, template. The halide has major impact on graphene yield, ordering of lattice, adsorption properties.

The replacement of unsaturation with a cyclopropane motif as (bio)isostere is widespread strategy in bacteria to tune the fluidity lipid bilayers and protect membranes when exposed adverse environmental conditions, e.g., high temperature, low pH, etc. Inspired by this phenomenon, we herein address relative effect cyclopropanation, both cis trans configurations, on melting points, packing efficiency, order series lipid-like ionic liquids via combination thermophysical analysis, X-ray...