Exchange-mediated transport in battery electrolytes: ultrafast or ultraslow?

B Dereka, NHC Lewis, Y Zhang, NT Hahn… - Journal of the …, 2022 - ACS Publications
Understanding the mechanisms of charge transport in batteries is important for the rational
design of new electrolyte formulations. Persistent questions about ion transport mechanisms …

Liquid structure of a water-in-salt electrolyte with a remarkably asymmetric anion

A Triolo, V Di Lisio, F Lo Celso… - The Journal of …, 2021 - ACS Publications
Water-in-salt systems, ie, super-concentrated aqueous electrolytes, such as lithium bis (
trifluoromethanesulfonyl) imide (21 mol/kgwater), have been recently discovered to exhibit …

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 …

Dynamics of ionic liquid through intrinsic vibrational probes using the dispersion-corrected DFT functionals

A Biswas, BS Mallik - The Journal of Physical Chemistry B, 2021 - ACS Publications
First principles molecular dynamics simulations have been utilized to study the spectral
properties of the protic ionic liquid, methylammonium formate (MAF). All simulations were …

Conformation-induced vibrational spectral dynamics of hydrogen peroxide and vicinal water molecules

A Biswas, BS Mallik - Physical Chemistry Chemical Physics, 2021 - pubs.rsc.org
We studied the conformation-induced spectral response of water molecules due to site-
specific structural alterations of solvated hydrogen peroxide (H2O2) employing DFT-based …

Correlating Ionic Conductivity to Structure and Dynamics of Li-Ion Battery Electrolyte Systems: Raman Spectroscopy, Dielectric Relaxation Measurements, and Streak …

A Mondal, K Kumbhakar, R Biswas - The Journal of Physical …, 2024 - ACS Publications
A correlation between ionic conductivity and electrolyte solution structure and dynamics was
explored by performing electrolyte concentration-and temperature-dependent …

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 …