Silver‐Based Supportless Membrane Electrode Assemblies for Electrochemical CO2 Reduction DOI Creative Commons
Lydia Weseler, Marco Löffelholz, Jens Osiewacz

et al.

Electrochemical Science Advances, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 7, 2024

ABSTRACT Most commonly, electrochemical CO 2 reduction is performed in a three‐compartment setup employing gas diffusion electrodes (GDEs) to decrease mass transport limitations of the gaseous reactant reaction interface. However recently, there has been rising number investigations on suitable membrane electrode assemblies (MEAs) overcome ohmic potential losses caused by electrolyte gaps systems. While significant majority MEAs exhibited literature based catalyst‐coated layers, this work presents an approach that does not require likewise support. On basis catalyst suspension similar mixtures already employed for GDE production industrial level, method directly transfer resulting layers developed. The Faradaic efficiency carbon monoxide, i.e. target product formation GDEs manufactured according procedure, can be matched or even exceeded individual modifications exchange MEAs. Simultaneously, cell potentials remarkably decreased setup. By gradual adaptation fabrication influence important manufacturing parameters unraveled, also discussing effect hydrogen permeation through membrane.

Language: Английский

Reshaping the energy landscape: Explorations and strategic perspectives on hydrogen energy preparation, efficient storage, safe transportation and wide applications DOI

Kaiyou Shu,

Bin Guan, Zhongqi Zhuang

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 97, P. 160 - 213

Published: Nov. 30, 2024

Language: Английский

Citations

20

Scaling Up Stability: Navigating from Lab Insights to Robust Oxygen Evolution Electrocatalysts for Industrial Water Electrolysis DOI
Faiza Meharban, Chao Lin,

Xiaotong Wu

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 29, 2024

Abstract In the pursuit of sustainable hydrogen production via water electrolysis, paramount importance electrocatalyst stability emerges as a defining factor for long‐term industrial viability. A thorough understanding and enhancement not only ensure extended catalyst lifetimes but also pave way consistent efficient generation. This review focuses on pivotal role in determining practical viability oxygen evolution electrocatalysts (OECs) large‐scale applications electrolysis production. The paper explores over initial activity, citing examples hypothetical scenarios. First, figures merits evaluation are explained along with available benchmarking protocols evaluation. Further, text delves into various strategies that can enhance which include self‐healing/regeneration pathway, reaction (OER) mechanism optimization to achieve highly stable OER stabilization active metals atoms within inhibit dissolution forward application. interplay stability, cost is suit application electrocatalyst. Lastly, it outlines challenges, prospects, future directions, presenting guide advancing OECs generation landscape.

Language: Английский

Citations

14

Rapid Outgassing of Hydrophilic TiO2 Electrodes Achieves Long-Term Stability of Anion Exchange Membrane Water Electrolyzers DOI Creative Commons
Shajahan Shaik,

Jeonghyeon Kim,

Mrinal Kanti Kabiraz

et al.

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: March 13, 2025

Abstract The state-of-the-art anion-exchange membrane water electrolyzers (AEMWEs) require highly stable electrodes for prolonged operation. stability of the electrode is closely linked to effective evacuation H 2 or O gas generated from surface during electrolysis. In this study, we prepared a super-hydrophilic by depositing porous nickel–iron nanoparticles on annealed TiO nanotubes (NiFe/ATNT) rapid outgassing such nonpolar gases. NiFe/ATNT exhibited an overpotential 235 mV at 10 mA cm −2 oxygen evolution reaction in 1.0 M KOH solution, and was utilized as anode AEMWE achieve current density 1.67 A 1.80 V. addition, with electrode, which enables outgassing, showed record 1500 h 0.50 under harsh temperature conditions 80 ± 3 °C.

Language: Английский

Citations

1

Technology for Green Hydrogen Production: Desk Analysis DOI Creative Commons
Bożena Łosiewicz

Energies, Journal Year: 2024, Volume and Issue: 17(17), P. 4514 - 4514

Published: Sept. 9, 2024

The use of green hydrogen as a high-energy fuel the future may be an opportunity to balance unstable energy system, which still relies on renewable sources. This work is comprehensive review recent advancements in production. outlines current consumption trends. It presents tasks and challenges economy towards hydrogen, including production, purification, transportation, storage, conversion into electricity. main types water electrolyzers: alkaline electrolyzers, proton exchange membrane solid oxide anion electrolyzers. Despite higher production costs compared grey this suggests that technologies become cheaper more efficient, cost expected decrease. highlights need for cost-effective efficient electrode materials large-scale applications. concludes by comparing operating parameters considerations different electrolyzer technologies. sets targets 2050 improve efficiency, durability, scalability underscores importance ongoing research development address limitations technology make competitive with fossil fuels.

Language: Английский

Citations

6

Naphthalene‐based polybenzimidazole cross‐linked with 3‐hexyl spacers N,N‐dimethylpiperidinium cations for alkaline anion exchange membrane water electrolysis DOI Open Access
Luoyang Ding,

Xiaohua Yu,

Chen Yue

et al.

Polymer Engineering and Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 2, 2025

Abstract To enhance the hydroxide conductivity and alkaline stability of polybenzimidazole as anion exchange membranes (AEM) to produce hydrogen via water electrolysis, a deprotonated poly[2,2′‐(1,4‐naphthalene)‐5,5′‐dibenzimidazole] (NPBI) was cross‐linked with 3‐hexyl spacers N , ‐dimethylpiperidinium cations (QDMP) cationic groups, forming QDMP‐NPBI‐ x composite membrane. Some ‐NH‐ groups NPBI are deprotonated, ammonium‐piperidine complexes QDMP, which leads ion cross‐linking in AEM. The homogeneous structure within QDMP‐NPBI not only significantly augmented their thermal chemical but also enhanced longevity ionic under conditions. Specifically, QDMP‐NPBI‐20 membrane reached higher level 139.7 mS/cm, contrast 103 mS/cm exhibited by pristine at 363 K, it showed current density 113.5 mA/cm 2 2.4 V 1 M KOH solution. All AEMs stability, ionically began degrade 420°C. maintained 93.1% initial after 500‐h test 80°C, no discernible changes morphology or mass. Characterization results affirm that these prepared harbor superior physicochemical properties elevated conductivity, underscoring substantial potential for deployment AEM electrolysis technologies. Highlights introduction QDMP increased OH ‐ sites Three‐dimensional mesh provides spatial site‐blocking effect. Cross‐linked enhances achieves K.

Language: Английский

Citations

0

Synthesis of poly(vinyl alcohol-co-diallyl dimethylammonium chloride) and its use in an Anion Exchange Membrane for Water Electrolysis (AEMWE) DOI Creative Commons

Domenico Lentini,

Francesko Malaj,

Alessandro Tampucci

et al.

Electrochimica Acta, Journal Year: 2025, Volume and Issue: unknown, P. 146044 - 146044

Published: March 1, 2025

Language: Английский

Citations

0

Exploring the role of saline water splitting in sustainable energy solutions and hydrogen economy DOI
Mahesh M. Shanbhag,

Shanu Mishra,

Nagaraj P. Shetti

et al.

Applied Energy, Journal Year: 2025, Volume and Issue: 389, P. 125733 - 125733

Published: March 23, 2025

Language: Английский

Citations

0

Ion and Water Transports in Double Gyroid Nanochannels Formed by Block Copolymer Anion Exchange Membranes DOI Creative Commons
Karim Aissou, Maximilien Coronas, Jason Richard

et al.

Batteries, Journal Year: 2025, Volume and Issue: 11(4), P. 126 - 126

Published: March 26, 2025

Mechanically improved polymeric membranes with high ionic conductivity (IC) and good permeability are highly desired for next-generation anion exchange (AEMs) in order to reduce Ohmic losses enhance water management alkaline membrane fuel cells. To move towards the fabrication of such high-performance membranes, creation hydrophilic ion-conducting double gyroid (DG) nanochannels within block copolymer (BCP) AEMs is a promising approach. However, this attractive solution remains difficult implement due complexity constructing well-developed DG morphology across entire thickness. deal issue, permeable polystyrene-block-poly(2-vinylpyridine)-block-poly(ethylene oxide) were produced by combining solvent vapor annealing (SVA) treatment methylation process. Here, SVA enabled manufacture DG-forming BCP while process allowed conversion pyridine sites N-methylpyridinium (NMP+) cations via Menshutkin reaction. Following SVA-methylation method, IC value water-permeable (~384 L h−1 m−2 bar−1) DG-structured their OH−counter form was measured be ~2.8 mS.cm−1 at 20 °C lower probed, under same experimental conditions, from as-cast NMP+-containing analogs non-permeable disordered phase (~1.2 mS.cm−1).

Language: Английский

Citations

0

Evaluation of durability of A201 anion-exchange membranes towards organic solvents DOI Creative Commons

Juri Harada,

Akizumi Yonezawa,

Yusuke Muto

et al.

Journal of Solid State Electrochemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Language: Английский

Citations

0

Scaling and heating will drive low-temperature CO2 electrolysers to operate at higher temperatures DOI

Henri M. Pelzer,

Nikita Kolobov, David A. Vermaas

et al.

Nature Energy, Journal Year: 2025, Volume and Issue: unknown

Published: April 28, 2025

Language: Английский

Citations

0