Publications associées à Enhancement of electrocatalysis through magnetic field effects on mass transport

Publications associées (17)

Sensitivity of the magnetic axis to variations in the magnetic field

Lagrangian variational principles are used to locate the magnetic axis and to determine its sensitivity to variations in the magnetic field. Only the change in the magnetic field on axis is required to determine, to lowest order, the location of the new ma ...

American Institute of Physics (AIP)2025

Oxygen effects on hopping transport in polycrystalline tungsten disulfide transistors via laser-assisted doping

Arindam Bala

Tungsten disulfide (WS2), a transition metal dichalcogenide (TMD), is known for its unique optoelectronic properties, making it ideal for thin-film electronics. However, achieving the necessary improvements for practical applications requires precise contr ...

2025

Efficiency of dynamos from an autonomous generation of chiral asymmetry

Salim Bennouna

At high energies, the dynamics of a plasma with charged fermions can be described in terms of chiral magnetohydrodynamics. Using direct numerical simulations, we demonstrate that chiral magnetic waves (CMWs) can produce a chiral asymmetry μ5=μL-μR from a s ...

American Physical Society2024

Microporous transport layers facilitating low iridium loadings in polymer electrolyte water electrolysis

Manuel Guizar Sicairos

Minimizing the power-specific iridium loading in polymer electrolyte water electrolysis (PEWE) is essential for the commercialization and upscaling of this technology. However, decreasing the iridium loading can severely affect performance and stability. M ...

ROYAL SOC CHEMISTRY2024

Probabilistic Techno-Economic Assessment of Medium-Scale Photoelectrochemical Fuel Generation Plants

Sophia Haussener, Alexandre Dominique M. Cattry

Photoelectrochemical (PEC) systems are promising approaches for sustainable fuel processing. PEC devices, like conventional photovoltaic-electrolyzer (PV-EC) systems, utilize solar energy for splitting water into hydrogen and oxygen. Contrary to PV-EC syst ...

2024

Stretch-independent magnetization in incompressible isotropic hard magnetorheological elastomers

Pedro Miguel Nunes Pereira de Almeida Reis

Recent studies on magnetically hard, particle-filled magnetorheological elastomers (h-MREs) have revealed their stretch-independent magnetization response after full pre-magnetization. We discuss this phenomenon, focusing on incompressible, isotropic, part ...

2024

Proof-of-Principle Positron Source for Future Colliders

Nicolas Vallis

The PSI Positron Production experiment, known as P3 or P-cubed, is a proof-of-principle positron source and capture system that can greatly improve the state-of-the-art positron yield. The P3 project is led by the Paul Scherrer Institute (PSI) under the au ...

EPFL2024

Continuous production prototype for scaling up of graphene oxide/carbon nanotube composite synthesis towards efficient hydrogen storage

Andreas Züttel, Yudong Xue, Yunting Wang

A continuous production prototype for scaling up the synthesis of a graphene oxide/multi-walled carbon nanotubes (GO/MWCNTs) composite as a hydrogen storage material has been proposed in this study. This prototype consists of an automatic feeding and mixin ...

2024

Low-temperature non-equilibrium synthesis of anisotropic multimetallic nanosurface alloys for electrochemical CO2 reduction

Andreas Züttel, Emad Oveisi, Mo Li, Jie Zhang, Cedric David Koolen

Multimetallic nanoparticles are of interest as functional materials due to their highly tunable properties. However, synthesizing congruent mixtures of immiscible components is limited by the need for high-temperature procedures followed by rapid quenching ...

Springernature2023

Precious metal-free (photo)electrochemistry for green hydrogen production

Hannah Elizabeth Johnson

Climate change caused by anthropogenic greenhouse gas emissions necessitates a transition from fossil resources to greener fuels and chemicals. Hydrogen is a promising green energy vector due to its high gravimetric energy density, its potential use in fue ...

EPFL2023

Ink-Based CuIn0.3Ga0.7S2 Nanocrystal Thin Films as Photocathodes for Photoelectrochemical CO2 Reduction Reaction

Kevin Sivula, Jun Ho Yum, Nestor Guijarro Carratala

One of the promising methods to solve the current energyand environmentissues is photoelectrochemical (PEC) water splitting and CO2 reduction reaction. Chalcopyrite copper indium gallium sulfide (CIGS)and CuIn0.3Ga0.7S2 nanocrystal thinfilms have been cons ...

AMER CHEMICAL SOC2023

Complex magnetic structure and spin waves of the noncollinear antiferromagnet Mn5Si3

Nicola Marzari, Flaviano José Dos Santos

The investigations of the interconnection between micro- and macroscopic properties of materials hosting noncollinear antiferromagnetic ground states are challenging. These forefront studies are crucial for unraveling the underlying mechanisms at play, whi ...

AMER PHYSICAL SOC2022

Future Swiss Energy Economy: The Challenge of Storing Renewable Energy

Paul Joseph Dyson, Andreas Züttel, Noris André Gallandat

Fossil fuels and materials on Earth are a finite resource and the disposal of waste into the air, on land, and into water has an impact on our environment on a global level. Using Switzerland as an example, the energy demand and the technical challenges, a ...

FRONTIERS MEDIA SA2022

Design of Frustrated Lewis Pair Catalysts for Direct Hydrogenation of CO2

Paul Joseph Dyson, Anne-Clémence Corminboeuf, Shubhajit Das, Roland Christopher Turnell-Ritson

Despite recent progress in the chemistry of frustrated Lewis pairs (FLPs), direct FLP-catalyzed hydrogenation of CO2 remains elusive. From a near-infinite array of plausible Lewis pairs, it is challenging to identify individual combinations that are approp ...

Wiley-VCH Verlag GmbH2022

van der Waals pi Josephson Junctions

László Forró, Helmuth Berger

Proximity-induced superconductivity in a ferromagnet can induce Cooper pairs with a finite center-of-mass momentum and stabilize Josephson junctions (JJs) with pi phase difference in superconductor-ferromagnet-superconductor heterostructures. The emergence ...

AMER CHEMICAL SOC2022

“Forbidden” Polarisation and Extraordinary Piezoelectric Effect in Organometallic Lead Halide Perovskites

László Forró, Dragan Damjanovic, Endre Horvath, Márton Kollár, Lukas Riemer, Milica Vasiljevic

Organometallic lead halide perovskites are highly efficient materials for solar cells and other optoelectronic applications due to their high quantum efficiency and exceptional semiconducting properties. A peculiarity of these perovskites is the substantia ...

2022

Facile ultrasonic-assisted synthesis of SiO2/ZnO core/shell nanostructures: A selective ethanol sensor at low temperatures with enhanced recovery

Mehrdad Asgari

SiO2/ZnO core/shell and composite sensors with 22-97 wt% ZnO content were synthesized by a facile ultrasonicassisted deposition-precipitation method. As for the core, uniform silica spherical particles were synthesized by a microemulsion technique. The pre ...

ELSEVIER SCIENCE SA2022