Publication
Quantifying mass transport limitations in a microfluidic CO2 electrolyzer with a gas diffusion cathode
Related publications (37)
Membrane electrode assembly simulation of anion exchange membrane water electrolysis
Jan Van Herle, Suhas Nuggehalli Sampathkumar, Khaled Lawand, Zoé Mury
Anion exchange membrane water electrolysis (AEMWE) offers a green hydrogen production method that eliminates the need for platinum group metals (PGM) as electrocatalysts. This study employs a COMSOL (R) 6.0 model to simulate a 1x1 cm(2) Ni fibre - Raney (R ...
Amsterdam2024Pathways to enhance electrochemical CO2 reduction identified through direct pore-level modeling
Sophia Haussener, Etienne Boutin, Evan Fair Johnson, Shuo Liu
Electrochemical conversion of CO2 to fuels and valuable products is one pathway to reduce CO2 emissions. Electrolyzers using gas diffusion electrodes (GDEs) show much higher current densities than aqueous phase electrolyzers, yet models for multi-physical ...
2023Electron imaging of gas diffusion electrodes for proton exchange membrane fuel cells
The current energy crisis demands the development of new sustainable energy sources and devices with low environmental impact, including in the field of electrochemical cells. Mass transport limitations can reduce the overall performance of the device by l ...
EPFL2023Gas generating membrane-less electrolyser
Demetri Psaltis, Pooria Hadikhani
Electrolyser including a reactor (2) comprising a housing (4), fluidic channels (6a, 6b, 6c) within the housing, and electrodes (16a, 16c) comprising an anode (16a) and a cathode (16c). The fluidic channels include an inter-electrode channel (6b) arranged ...
2023Model-assisted identification of solid oxide cell elementary processes by electrochemical impedance spectroscopy measurements
Jan Van Herle, Stefan Diethelm, Arata Nakajo, Priscilla Caliandro
Electrochemical Impedance Spectroscopy (EIS) is extensively used to characterize Solid Oxide Cells (SOCs) to extract information on the elementary loss mechanisms. However, these individual mechanisms usually overlap in the frequency domain, requiring dedi ...
ELSEVIER2019Local Study on Hydrogen and Hydrogen Gas Bubble Formation on a Platinum Electrode
Hubert Girault, Andreas Stephan Lesch, Alberto Battistel, Christopher Raymond Dennison
This work investigates the effect of current density on the hydrogen gas bubble formation during electrolysis on a platinum electrode. Local detection of bubble evolution was performed electrochemically by using a hydrogen-collecting microelectrode placed ...
AMER CHEMICAL SOC2019Compact and General Strategy for Solving Current and Potential Distribution in Electrochemical Cells Composed of Massive Monopolar and Bipolar Electrodes
Hubert Girault, Alejandro Nicolás Colli
A compact, fast and general algorithm based on Dirichlet boundary conditions for the potential field is derived to enable the calculation of local current distribution, shunt currents and the local potential distribution on massive electrodes in electroche ...
2017Challenges towards Economic Fuel Generation from Renewable Ellectricity: The Heed for Efficient Electro-Catalysis
Kevin Sivula, Florian Le Formal, Mathieu Steven Prévot, Wiktor Stefan Bourée
Utilizing renewable sources of energy is very attractive to provide the growing population on earth in the future but demands the development of efficient storage to mitigate their intermittent nature. Chemical storage, with energy stored in the bonds of c ...
Swiss Chemical Soc2015Highly Efficient Metal-Free Sulfur-Doped and Nitrogen and Sulfur Dual-Doped Reduced Graphene Oxide Counter Electrodes for Dye-Sensitized Solar Cells
Michael Graetzel, Lichen Zhao, Hujiang Shen, Shilong Wang
Developing metal-free electrocatalysts with both high performance and low cost for the reduction reaction at the cathode of dye-sensitized solar cells (DSCs) is critical for further cost reduction and large-scale implementation of DSCs. Here, sulfurdoped r ...
American Chemical Society2014Chromium Poisoning
This thesis focuses on Cr-poisoning in solid oxide fuel cells (SOFC), which currently presents a key challenge for the development of this technology. By the implementation of dedicated experimental tools, this work offers a new access to, and comprehensio ...
EPFL2012