Porous transport layers for proton exchange membrane electrolysis under extreme conditions of current density, temperature, and pressure

S Stiber, H Balzer, A Wierhake… - Advanced Energy …, 2021 - Wiley Online Library
Hydrogen produced via water electrolysis powered by renewable electricity or green H2
offers new decarbonization pathways. Proton exchange membrane water electrolysis …

Critical current density as a performance indicator for gas-evolving electrochemical devices

JK Lee, CH Lee, KF Fahy, B Zhao, JM LaManna… - Cell Reports Physical …, 2020 - cell.com
Reaching high current densities is absolutely imperative for electrochemical energy
conversion, from fuel cells to CO 2 reduction. Here, we identify the existence of a …

Spatially graded porous transport layers for gas evolving electrochemical energy conversion: High performance polymer electrolyte membrane electrolyzers

JK Lee, CH Lee, KF Fahy, PJ Kim, JM LaManna… - Energy Conversion and …, 2020 - Elsevier
Decarbonizing society's energy infrastructure is foundational for a sustainable future and
can be realized by harnessing renewable energy for clean hydrogen and on-demand power …

Tailored porous transport layers for optimal oxygen transport in water electrolyzers: combined stochastic reconstruction and lattice Boltzmann method

J Liu, M Li, Y Yang, N Schlüter, D Mimic… - …, 2023 - Wiley Online Library
The porous transport layer (PTL) plays an integral role for the mass transport in polymer
electrolyte membrane (PEM) electrolyzers. In this work, a stochastic reconstruction method …

Accelerating bubble detachment in porous transport layers with patterned through-pores

JK Lee, CH Lee, KF Fahy, PJ Kim… - ACS Applied Energy …, 2020 - ACS Publications
Mass transport losses ultimately suppress gas evolving electrochemical energy conversion
technologies, such as fuel cells and carbon dioxide electrolyzers, from reaching the high …

High-speed characterization of two-phase flow and bubble dynamics in titanium felt porous media for hydrogen production

Y Li, G Yang, S Yu, J Mo, K Li, Z **e, L Ding, W Wang… - Electrochimica …, 2021 - Elsevier
Bubble dynamics and two-phase flow phenomena are closely related to the performance of
proton exchange membrane electrolyzer cells (PEMECs). This paper reports an in-situ study …

Gas compression systematically delays the onset of viscous fingering

LC Morrow, C Cuttle, CW MacMinn - Physical Review Letters, 2023 - APS
Using gas to drive liquid from a Hele-Shaw cell leads to classical viscous fingering.
Strategies for suppressing fingering have received substantial attention. For steady injection …

Lattice Boltzmann method to study the water-oxygen distributions in porous transport layer (PTL) of polymer electrolyte membrane (PEM) electrolyser

S Paliwal, D Panda, S Bhaskaran… - International Journal of …, 2021 - Elsevier
Anodic porous transport layer (PTL) plays a pivotal role in the performance of the polymer
electrolyte membrane (PEM) water electrolyser. In this study, Shen-Chen Lattice Boltzmann …

[HTML][HTML] Superhydrophilic porous transport layer enhances efficiency of polymer electrolyte membrane electrolyzers

B Zhao, CH Lee, JK Lee, KF Fahy, JM LaManna… - Cell Reports Physical …, 2021 - cell.com
A prominent technology for green hydrogen generation is the polymer electrolyte membrane
(PEM) electrolyzer. However, the energy efficiency of PEM electrolyzers must improve …

Transient gas distribution in porous transport layers of polymer electrolyte membrane electrolyzers

CH Lee, JK Lee, B Zhao, KF Fahy… - Journal of The …, 2020 - iopscience.iop.org
Here, we elucidated the dynamic gas transport behavior in the anode porous transport layer
(PTL) of polymer electrolyte membrane (PEM) electrolyzers via in operando synchrotron X …