Journal of Membrane Science, Journal Year: 2025, Volume and Issue: unknown, P. 123778 - 123778
Published: Jan. 1, 2025
Language: Английский
Energy Materials, Journal Year: 2025, Volume and Issue: 5(8)
Published: March 21, 2025
Seawater electrolysis offers a sustainable solution for hydrogen production by utilizing ocean water as an electrolyte. However, the chlorine evolution reaction (ClER) and accumulation of magnesium calcium precipitates pose significant challenges to efficiency durability. ClER competes with oxygen reaction, reducing output accelerating electrode degradation, while precipitate formation on cathode blocks catalytic sites impairs long-term performance. Anion exchange membrane electrolyzers tackle these leveraging alkaline media suppress enhance catalyst stability. Recent advances in selective catalysts, protective coatings, alternative oxidation reactions further improve selectivity energy efficiency. Additionally, strategies such surface engineering pH modulation mitigate formation, ensuring stable operation. Scaling innovations into anion electrolyzer systems demonstrates their potential industrial-level production. By overcoming fundamental practical barriers, seawater toward commercial deployment future.
Language: Английский
Citations
1
ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: 8(1), P. 194 - 207
Published: Jan. 2, 2025
Proton exchange membrane water electrolysis (PEMWE) gained significant focus among the scientific community as a promising solution for green hydrogen production. Noble metals, platinum (Pt) and iridium in particular, play role case of large-scale implementation due to limited availability. Recently, aerogel materials have been integrated into PEMWE cell designs enhance durability reduce high catalyst noble metal loadings. In this work, we present first time Pt nanoparticle-based (NP-based) cryoaerogel an active layer directly applied on carbon support gas diffusion (GDL) at cathode side. Some challenges were successfully overcome during manufacturing process (i.e., wettability mechanical connection issues). A pyrolysis step is employed improve between GDL. The structure synthesized found be greatly influenced by temperature confirmed scanning electron microscopy (SEM), transmission (TEM) X-ray photoelectron spectroscopy (XPS). electrochemical characterization involves polarization curves, impedance measurements, voltage loss breakdown well 500 h test. results show that has stable reproducible performance with mass activity reached low loading 0.15 mgPt cm–2.
Language: Английский
Citations
0
MetalMat, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 29, 2025
ABSTRACT High‐entropy materials (HEMs) have emerged as a pioneering paradigm in recent years, drawing substantial interest due to their unique combination of diverse elemental constituents and homogeneous solid‐solution structure. This novel material class not only opens up extensive potential for discovery through broad spectrum combinations but also facilitates fine‐tuning properties thanks its distinctive microstructural characteristics. HEMs garnered considerable attention across various applications, particularly catalysis. The virtually infinite variations compositional within these multi‐elemental systems enable meticulous optimization the catalytic performance. Additionally, high‐entropy structure potentially enhances structural, thermal, chemical stability, which is vital ensuring functionality under harsh conditions. Herein, we thoroughly explore exceptional attributes HEMs, designing strategies transition metal‐based catalysis, three major fields HEMs: electrocatalysis, photocatalysis, thermocatalysis. discussion aspires provide valuable perspectives into advancements innovations catalyst design development.
Language: Английский
Citations
0
International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 1, 2025
Language: Английский
Citations
0
ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown
Published: March 10, 2025
Electrochemical water splitting is a promising technology for the sustainable production of green hydrogen. Large-scale hydrogen demands efficient electrocatalysts to continuously operate at large current densities. Catalyst deterioration and its peel-off are major concerns densities, resulting in subpar performance. Herein, we utilized acoustic cavitation-assisted electrodeposition synthesize highly robust NiFe NiMn oxyhydroxide catalysts oxygen evolution reaction (OER) (HER), respectively. The cavitation process led development uniform nanoscale structure, partial amorphization, formation vacancies, likely as result high-strain deformation. synthesized demonstrated excellent performance, with very low overpotentials 285 189 mV 1000 mA/cm2, OER HER cell configuration required 1.76 V only achieving 1 A/cm2 negligible after 24 h continuous operation. commercial viability developed was obtained by testing 2.5 × cm2 anion-exchange membrane (AEM) stack up 1.2 density. potentials reach industry-relevant high densities 500 mA/cm2 were 2.1 2.6 V, electrode stability electrolyzer scale investigated running from 100 total h, wherein durability robustness.
Language: Английский
Citations
0
Green Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
Green catalyst enhanced Mechanochemical-Microwave pretreatment of cardboard waste. This innovative approach enables the efficient conversion waste into biogas, a crucial step towards sustainable and green energy future.
Language: Английский
Citations
0
Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 137506 - 137506
Published: April 1, 2025
Language: Английский
Citations
0
Journal of Membrane Science, Journal Year: 2025, Volume and Issue: unknown, P. 123778 - 123778
Published: Jan. 1, 2025
Language: Английский
Citations
0