Unraveling local structures of Salt-in-Water and Water-in-Salt electrolytes via ab initio molecular dynamics

T Malaspina, G Colherinhas, SE Weitzner… - Journal of Molecular …, 2023 - Elsevier
Water-in-salt electrolytes (WiSE) are attractive for electrochemical energy storage
applications owing to their wide electrochemical stability windows and inherent safety. The …

Ab Initio Dynamics of Graphene and Graphyne Electrodes in Vacuum and in the Presence of Electrolytes

T Malaspina, G Colherinhas, SE Weitzner… - The Journal of …, 2023 - ACS Publications
Graphene and graphyne electrodes are both relevant for electrochemical energy storage
applications due to their unique physical, chemical, and electronic properties. Graphyne has …

Microheterogeneity-Induced Vibrational Spectral Dynamics of Aqueous 1-Alkyl-3-methylimidazolium Tetrafluoroborate Ionic Liquids of Different Cationic Chain …

A Biswas, BS Mallik - The Journal of Physical Chemistry B, 2022 - ACS Publications
We have monitored the impacts of an increment in the alkyl chain length of the imidazolium-
based tetrafluoroborate ionic liquids on the local deuteroxyl probe modes of interest. For this …

Revisiting OD-stretching dynamics of methanol‑d4, ethanol-d6 and dilute HOD/H2O mixture with predefined potentials and wavelet transform spectra

A Biswas, BS Mallik - Chemical Physics, 2022 - Elsevier
Classical molecular dynamics simulations were performed to explore the stretching profiles
of hydrogen-bonded liquids using the wavelet transform of classical trajectories to calculate …

Vibrational spectral dynamics and ion-probe interactions of the hydrogen-bonded liquids in 1-ethyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide

A Biswas, BS Mallik - Chemical Physics, 2022 - Elsevier
We investigate ion-probe interactions within the molecular liquid, examine dynamics, and
interpret the vibrational spectral dynamics of the mixtures of ionic liquid, 1-Ethyl-3 …

Direct Correlation between Short-Range Vibrational Spectral Diffusion and Localized Ion-Cage Dynamics of Water-in-Salt Electrolytes

A Biswas, BS Mallik - The Journal of Physical Chemistry B, 2022 - ACS Publications
The molecular dynamics simulations of a “water-in-salt” electrolyte, lithium bis
(trifluoromethyl sulfonyl) imide (LiNTf2), with a varying concentration range of 3 to 20 m were …

2D IR spectra of the intrinsic vibrational probes of ionic liquid from dispersion corrected DFT-MD simulations

A Biswas, BS Mallik - Journal of Molecular Liquids, 2022 - Elsevier
We present the vibrational spectral profile of the intrinsic cationic (NH) and anionic (CO)
probe stretch modes in methylammonium formate (MAF) using first principles molecular …

[HTML][HTML] Density functional theory study of physisorption of ionic liquid pairs on hydroxylated and oxygen terminated α-SiO2 (001) surfaces

X Wang, O Antzutkin, JA Larsson - AIP Advances, 2024 - pubs.aip.org
In this work, we investigate the ion pair tetramethylphosphonium cation,[P 1, 1, 1, 1]+, and
bis (oxalato) borate anion,[BOB]−, as a model system for the study of ionic liquids interacting …

Molecular Simulation-Guided Spectroscopy of Imidazolium-Based Ionic Liquids and Effects of Methylation on Ion-Cage and-Pair Dynamics

A Biswas, BS Mallik - The Journal of Physical Chemistry B, 2022 - ACS Publications
Classical molecular dynamics simulations were performed to assess an atomistic
interpretation of the ion-probe structural interactions in two typical ionic liquids (ILs), 1-butyl …

Ionic Dynamics and Vibrational Spectral Diffusion of a Protic Alkylammonium Ionic Salt through Intrinsic Cationic N–H Vibrational Probe from FPMD Simulations

A Biswas, BS Mallik - The Journal of Physical Chemistry A, 2022 - ACS Publications
We employed density functional theory (DFT)-based molecular dynamics simulations to
explore the structure, dynamics, and spectral properties of the protic ionic entity …