Characterization of Porous Transport Layers Towards the Development of Efficient Proton Exchange Membrane Water Electrolysis DOI Creative Commons
Genevieve Stelmacovich, Svitlana Pylypenko

ChemElectroChem, Journal Year: 2024, Volume and Issue: 11(20)

Published: Sept. 20, 2024

Abstract The current goals for implementing the hydrogen economy have highlighted a need to further optimize water‐splitting technologies clean production. Proton exchange membrane water electrolysis (PEMWE) is leading technology, but optimizations of anode materials including porous transport layer (PTL) and adjacent catalyst (CL) are required increase overall cell performance reduce cost. This literature review describes advances in PTL development characterization, highlighting early characterization work most common methods capillary flow porometry mercury intrusion porometry, optical imaging, neutron x‐ray radiography, computed tomography. article also discusses protective coatings their characterizations, focusing on platinum group metal (PGM)‐based coatings, alternative non‐PGM‐based post‐treated PTLs, investigations into thin PGM‐based coatings. Furthermore, it highlights integration CL along with associated challenges. Lastly, this future developments needed improve PEMWE's long‐term durability discussed.

Language: Английский

Quaternary ammonium-functionalized crosslinked poly(aryl ether sulfone)s anion exchange membranes with enhanced alkaline stability for water electrolysis DOI

Jiafeng Qian,

Chenyi Wang, Boming Zhang

et al.

Journal of Membrane Science, Journal Year: 2023, Volume and Issue: 685, P. 121946 - 121946

Published: July 18, 2023

Language: Английский

Citations

25
Wettability and wettability modification methods of porous transport layer in polymer electrolyte membrane electrolysis cells (PEMEC): A review DOI

Liu Jianxin,

Zongqi Liu,

Zhang Xiao-lei

et al.

International Journal of Hydrogen Energy, Journal Year: 2023, Volume and Issue: 48(69), P. 26629 - 26651

Published: April 13, 2023

Language: Английский

Citations

24
On the Operational Conditions’ Effect on the Performance of an Anion Exchange Membrane Water Electrolyzer: Electrochemical Impedance Spectroscopy Study DOI Creative Commons
I. V. Pushkareva,

M. A. Solovyev,

S. I. Butrim

et al.

Membranes, Journal Year: 2023, Volume and Issue: 13(2), P. 192 - 192

Published: Feb. 3, 2023

The performance of an anion exchange membrane water electrolyzer under various operational conditions (including voltage, KOH-supporting electrolyte concentration, and flow rate) is studied using conventional time-domain technics electrochemical impedance spectroscopy (EIS). EIS footprint, depending on the variation in conditions, discussed, providing valuable data faradaic non-faradaic processes MEA, considering their contribution to total polarization resistance. distribution AEMWE cell voltage contributions accessing key directions system improvement.

Language: Английский

Citations

23
Design of PEM water electrolysers with low iridium loading DOI Open Access

Cliffton Wang,

Keonhag Lee,

Christopher Pantayatiwong Liu

et al.

International Materials Reviews, Journal Year: 2024, Volume and Issue: 69(1), P. 3 - 18

Published: Jan. 17, 2024

To enable gigawatt-scale deployment of proton exchange membrane water electrolysers (PEMWEs), drastic reductions from current iridium loadings 2–3 mg Ir cm −2 to less than 0.4 must occur due iridium's high cost and scarcity. State-of-the-art systems use these compensate for degradation experienced over prolonged operation. Thus, attain low while meeting commercial lifetime targets, factors such as ink formulation, MEA fabrication, catalyst layer–porous transport layer (CL–PTL) contact, durability be optimised. This review paper discusses the fundamentals PEMWE technology modifications/improvements necessary effective iridium-loading design. Important milestones future research include developing durable layers at loadings, optimising CL–PTL interface, improving roll-to-roll production processes.

Language: Английский

Citations

13
Understanding the Effects of Anode Catalyst Conductivity and Loading on Catalyst Layer Utilization and Performance for Anion Exchange Membrane Water Electrolysis DOI Creative Commons
Melissa E. Kreider, Haoran Yu, Luigi Osmieri

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(14), P. 10806 - 10819

Published: July 3, 2024

Anion exchange membrane water electrolysis (AEMWE) is a promising technology to produce hydrogen from low-cost, renewable power sources. Recently, the efficiency and durability of AEMWE have improved significantly due advances in anion polymers catalysts. To achieve performances lifetimes competitive with proton or liquid alkaline electrolyzers, however, improvements integration materials into electrode assembly (MEA) are needed. In particular, oxygen evolution reaction (OER) catalyst, ionomer, transport layer anode catalyst has significant impacts on utilization voltage losses gases, hydroxide ions, electrons within anode. This study investigates effects properties OER morphology performance. Using cross-sectional electron microscopy in-plane conductivity measurements for four PGM-free catalysts, we determine thickness, uniformity, electronic further use transmission line model relate these resistance utilization. We find that increased loading beneficial catalysts high uniform layers, resulting up 55% increase current density at 2 V decreased kinetic losses, while lower and/or less there minimal impact. work provides important insights role beyond intrinsic activity

Language: Английский

Citations

13
High‐performance porous transport layers for proton exchange membrane water electrolyzers DOI Creative Commons
Youkun Tao, Minhua Wu,

Meiqi Hu

et al.

SusMat, Journal Year: 2024, Volume and Issue: 4(4)

Published: July 18, 2024

Abstract Hydrogen is a favored alternative to fossil fuels due the advantages of cleanliness, zero emissions, and high calorific value. Large‐scale green hydrogen production can be achieved using proton exchange membrane water electrolyzers (PEMWEs) with utilization renewable energy. The porous transport layer (PTL), positioned between flow fields catalyst layers (CLs) in PEMWEs, plays critical role facilitating water/gas transport, enabling electrical/thermal conduction, mechanically supporting CLs membranes. Superior corrosion resistance essential as PTL operates acidic media oxygen saturation working potential. This paper covers development high‐performance titanium‐based PTLs for PEMWEs. heat/electrical conduction mass mechanisms how they affect overall performances are reviewed. By carefully designing controlling substrate microstructure, protective coating, surface modification, performance regulated optimized. two‐phase characteristics enhanced by fine‐tuning microstructure wettability PTL. addition microporous top‐layer effectively improve PTL|CL contact increase availability catalytic sites. anticorrosion coatings, which crucial chemical stability conductivity PTL, compared analyzed terms composition, fabrication, performance.

Language: Английский

Citations

10
Cell-construction-dependent predictive modelling of gas supersaturation in PEM electrolyzers governing corresponding crossover and electrochemical effects DOI Creative Commons

Marcus Tümmler,

Wolfram Münchgesang

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 101, P. 750 - 762

Published: Jan. 5, 2025

Language: Английский

Citations

1
Effect of channel rib on oxygen removal in 3D porous transport layer of proton exchange membrane electrolysis cell, a numerical investigation DOI
Qingquan Wu, Mingming Zhang, Xinhai Xu

et al.

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 106, P. 171 - 185

Published: Feb. 2, 2025

Language: Английский

Citations

1
Sustainable energy prospects: Advancements in green hydrogen production through proton exchange membrane water electrolysis DOI
Fazil Qureshi, Mohammad Asif,

Abuzar Khan

et al.

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

Citations

1
Effect of low voltage limit on degradation mechanism during high‐frequency dynamic load in proton exchange membrane water electrolysis DOI
Anastasiia Voronova, Hyoung‐Juhn Kim, Jong Hyun Jang

et al.

International Journal of Energy Research, Journal Year: 2022, Volume and Issue: 46(9), P. 11867 - 11878

Published: April 20, 2022

With regard to the hydrogen economy, setting criteria for durability evaluation of renewable energy-powered proton exchange membrane water electrolysis (PEMWE) systems is an important milestone. In this study, accelerated stress test (AST) protocols that simulate fluctuating power supply energy were explored. The average load was varied by changing low voltage limit (LVL = 1.4, 1.5, 1.7, and 1.9 V) with fixation a high 2.2 V. AST can accurately reflect real solar profile various loads ramp rates. Protocols LVL 1.4 V 1.5 demonstrated opposite trends even minimal difference in LVL, resulting positive negative degradation slopes, respectively. slope (meaning performance decrease) attributed reversal current, cathode catalyst, which characteristic fuel cell operating mode. On contrary, slight increase observed V, presumably caused thinning creation rougher surface anode/membrane interface. Meanwhile, higher 1.7 showed significant mass transport loss at voltages larger than 1.8 This may be severe delamination catalyst/membrane and/or diffuse layer/catalyst interface, due changes bubble nucleation stress. findings suggest rational guideline establishing unified protocol applicable PEMWE systems, subsequent material development strategies minimize processes.

Language: Английский

Citations

33