Concept
Dissociation (chimie)
Publications associées (83)
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 ...
EPFL2023Probing Water Dissociation and Oxygen Replacement on Partially Oxygen-Covered Cu(111) by Reflection Absorption Infrared Spectroscopy
Rainer Beck, Mateusz Suchodol, Harmina Vejayan
The presence of chemisorbed oxygen on the Cu(111) surface is known to strongly reduce the activation barrier for water dissociation as compared to bare Cu(111). Here, we present direct experimental evidence for the hydrogen abstraction mechanism responsibl ...
2023Water Orientation at the Anatase TiO2 Nanoparticle Interface: A Probe of Surface pK(a )Values
Arianna Marchioro, Marie Bischoff
The acid-base properties of surfaces significantly influence catalytic and (photo)electrochemical processes. Estimation of acid dissociation constants (pK(a )values) for colloids is commonly performed through electroanalytical techniques or spectroscopic m ...
AMER CHEMICAL SOC2022Water Orientation at the Anatase TiO2 Nanoparticle Interface: A Probe of Surface pKa Values
Arianna Marchioro, Marie Bischoff
The acid-base properties of surfaces significantly influence catalytic and (photo)electrochemical processes. Estimation of acid dissociation constants (pKa values) for colloids is commonly performed through electroanalytical techniques or spectroscopic met ...
AMER CHEMICAL SOC2022Highly Efficient Activation of HCl Dissociation on Au(111) via Rotational Preexcitation
The probability for dissociation of molecules on metal surfaces, which often controls the rate of industrially important catalytic processes, can depend strongly on how energy is partitioned in the incident molecule. There are many example systems where th ...
2021High Sensitivity Detection of a Solubility Limiting Surface Transformation of Drug Particles by DNP SENS
David Lyndon Emsley, Arthur César Pinon, Jasmine Viger-Gravel
We investigate the presence of a surface species for the active pharmaceutical ingredient (API) AZD9496 with dynamic nuclear polarization surface enhanced nuclear spectroscopy (DNP SENS). We show that using DNP we can elucidate the presence of an amorphous ...
ELSEVIER SCIENCE INC2021Structural elucidation and antibacterial activity of new dialkylstannyl- and chlorodialkylstannyl(IV) 3,4-dihydroisoquinoline-2-(1H)-carbodithioate
In extension with growing concern to develop new antimicrobial organometallic drugs, an attempt has been made to synthesize five new antimicrobial organotin(IV) carbodithioates with general formula, Me2SnClL (1), Me2SnL2 (2), Et2SnClL (3), Et2SnL2 (4), Bu2 ...
ELSEVIER2021Trace Iridium Engineering on Nickel Hydroxide Nanosheets as High-active Catalyst for Overall Water Splitting
Designing cost-effective electrocatalysts for electrochemical water splitting to generate the hydrogen energy as a future energy source is pivotal. An excellent catalyst should show high catalytic activity for both hydrogen evolution reaction (HER) and oxy ...
WILEY-V C H VERLAG GMBH2020Thermodynamics and kinetics of protonated merocyanine photoacids in water
Rosario Scopelliti, Kay Severin, Farzaneh Fadaei Tirani, Daniel Maria Busiello, Euro Solari, Cristian Pezzato, Stefano Zamuner, Cesare Berton
Metastable-state photoacids (mPAHs) are chemical species whose photo-activated state is long-lived enough to allow for proton diffusion. Liao's photoacid (1) represents the archetype of mPAHs, and is being widely used on account of its unique capability to ...
2020Systematic model reduction captures the dynamics of extrinsic noise in biochemical subnetworks
We consider the general problem of describing the dynamics of subnetworks of larger biochemical reaction networks, e.g., protein interaction networks involving complex formation and dissociation reactions. We propose the use of model reduction strategies t ...
AMER INST PHYSICS2020