Publication
Optical imaging of surface chemistry and dynamics in confinement
Related publications (49)
Gas/Surface reactions probed by reflection absorption infrared spectroscopy
In my thesis, I present an investigation of the dissociation reactions of gas phase molecules on single crystal metal surfaces studied by a molecular beam in combination with Reflection Absorption Infrared Spectroscopy (RAIRS). Two gas/surface systems were ...
EPFL2023Electrokinetic, electrochemical, and electrostatic surface potentials of the pristine water liquid-vapor interface
Although conceptually simple, the air-water interface displays rich behavior and is subject to intense experimental and theoretical investigations. Different definitions of the electrostatic surface potential as well as different calculation methods, each ...
AIP Publishing2022Effects of surface wettability on (001)-WO3 and (100)-WSe2: A spin-polarized DFT-MD study
Kevin Sivula, Rangsiman Ketkaew
An extensive understanding of WO3 and WSe2 bulk crystalline structures and explicit solvent effects on (001)-WO3 and (100)-WSe2 facets are essential for design of efficient (photo) electrocatalysts. The atomistic level understanding of both WO(3 )and WSe2 ...
ELSEVIER2022Molecular insights into the electrical double layer of colloidal oxide particles obtained through second harmonic scattering
Photocatalytic applications play an essential role in the search for alternative energy sources and environmental decontamination techniques. It is of fundamental interest to understand on a molecular level the aqueous solid/liquid interface, where photoca ...
EPFL2022Effects of surface rigidity and metallicity on dielectric properties and ion interactions at aqueous hydrophobic interfaces
Using classical molecular dynamics simulations, we investigate the dielectric properties at interfaces of water with graphene, graphite, hexane, and water vapor. For graphite, we compare metallic and nonmetallic versions. At the vapor-liquid water and hexa ...
AIP Publishing2022Structural and analytical identifications of biomolecules by cold ion spectroscopy of non-covalent complexes
Non-covalent interactions are ubiquitous in nature. The diversity and functionality of these interactions are employed by nature as a universal tool for building the molecular mechanism of life. Although weak, these interactions play a key role in both for ...
EPFL2021Charge transfer across C-H center dot center dot center dot O hydrogen bonds stabilizes oil droplets in water
Sylvie Roke, Saranya Pullanchery Sankara Narayanan, Sergey Kulik, Benjamin Rehl
The hydrophobic-water interface plays a key role in biological interactions. However, both the hydrophobic-water interfacial molecular structure and the origin of the negative zeta potential of hydrophobic droplets in water are heavily contested. We report ...
AMER ASSOC ADVANCEMENT SCIENCE2021Molecular ordering effects in bulk and at lipid/water nanoscopic interfaces: A story of water, light, and order
Water is ubiquitous on Earth, playing a critical role for a plethora of structures, processes and chemical reactions in nature. Its unique physicochemical properties originate mainly from its hydrogen bond network. Despite its recognized importance, many a ...
EPFL2021Microhydration of Biomolecules: Revealing the Native Structures by Cold Ion IR Spectroscopy
Andrei Zviagin, Viktoriia Aladinskaia
The native-like structures of protonated glycine and peptide Gly3H+ were elucidated using cold ion IR spectroscopy of these biomolecules hydrated by a controlled number of water molecules. The complexes were generated directly from an aqueous solution usin ...
2021Quantitative electronic structure and work-function changes of liquid water induced by solute
Recent advancement in quantitative liquid-jet photoelectron spectroscopy enables the accurate determination of the absolute-scale electronic energetics of liquids and species in solution. The major objective of the present work is the determination of the ...
ROYAL SOC CHEMISTRY2021