Concept

Streaming current

Publications associées (46)

Redox Electrocatalysis of Floating Nanoparticles: Determining Electrocatalytic Properties without the Influence of Solid Supports

Hubert Girault, Astrid Johana Olaya Avendano, Pekka Eero Peljo, Micheal Diarmaid Scanlon, Evgeny Smirnov, Thomas James Stockmann, Lucie Josette Renée Rivier

Redox electrocatalysis (catalysis of electron-transfer reactions by floating conductive particles) is discussed from the point-of-view of Fermi level equilibration, and an overall theoretical framework is given. Examples of redox electrocatalysis in soluti ...

2017

Single-layer MoS2 nanopores as nanopower generators

Aleksandra Radenovic, Andras Kis, Dumitru Dumcenco, Michael Graf, Ke Liu, Dmitry Ovchinnikov, Jiandong Feng

Making use of the osmotic pressure difference between fresh water and seawater is an attractive, renewable and clean way to generate power and is known as 'blue energy'(1-3). Another electrokinetic phenomenon, called the streaming potential, occurs when an ...

Nature Publishing Group2016

Manipulation of cellulose nanocrystal surface sulfate groups toward biomimetic nanostructures in aqueous media

Justin Orazio Zoppe

We report a facile aqueous procedure to create multivalent displays of sulfonated ligands on CNCs for future applications as viral inhibitors. CNCs were decorated with model compounds containing sulfonate groups via reactions of epoxides and isothiocyanate ...

Elsevier2015

Surface Chemistry of Calcium Aluminosilicate Glasses

Ruben Anton Snellings

The surface chemistry of synthetic calcium aluminosilicate glasses exposed to aqueous solutions of varying pH was described using zeta potential measurements and batch surface titrations. Element release and proton consumption were measured to characterize ...

Wiley-Blackwell2015

Stern Layer Formation Induced by Hydrophobic Interactions: A Molecular Level Study

Sylvie Roke, Yixing Chen, Rüdiger Scheu

The molecular ionic surface structure and charge of the electric double layer around a nanodroplet and its structural change induced by hydrophobic effects are measured using vibrational coherent surface scattering spectroscopy, second harmonic scattering, ...

Amer Chemical Soc2013

Synthesis and Properties of Highly-Charged Cationic Polyelectrolytes

Hamideh Ahmadloo

Polyelectrolytes (PEL) and PEL complexes formed by electrostatic interaction are recognized as compounds with a remarkable potential for a wide field of applications. However, comprehensive knowledge about electrostatic and structural influences on the pol ...

EPFL2013

Colloidal Stability of Self-Assembled Mono layer-Coated Gold Nanoparticles: The Effects of Surface Compositional and Structural Heterogeneity

Francesco Stellacci, Randy Patrick Carney

Surface heterogeneity plays an important role in controlling colloidal phenomena. This study investigated the self-aggregation and bacterial adsorption of self-assembled monolayer coated gold nanoparticles (AuNPs) with different surface compositional and s ...

American Chemical Society2013

Crowding, Intermolecular Interactions, and Shear Flow Effects in the Diffusion Model of Chemical Reactions

Nicolas Dorsaz, Giuseppe Foffi, Francesco Piazza

In the diffusion model of chemical reactions, the encounter (reaction) rate between reactant particles is governed by the Smoluchowski equation, which is a diffusion equation in a field of forces. We consider crowded environments where the particles diffus ...

2011

Adaptive finite elements with large aspect ratio for electroosmotic and pressure-driven microflows

Martinus Gijs, Marco Picasso, Virabouth Prachittham

A space–time adaptive method is presented for the numerical simulation of mass transport in electroosmotic and pressure-driven microflows in two space dimensions. The method uses finite elements with large aspect ratio, which allows the electroosmotic flow ...

Wiley-Blackwell2010

Electrochemical and Electrokinetic Tools for Surface Activity Characterization and Proteomics Analysis

Fernando Cortes Salazar

Scanning electrochemical microscopy (SECM) has developed into an excellent and versatile technique to image heterogeneous chemical reactivities on a surface. Therefore SECM applications cover a wide range of different fields such as biology and forensic sc ...

EPFL2010

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