International Journal of Hydrogen Energy, Год журнала: 2024, Номер unknown
Опубликована: Ноя. 1, 2024
Язык: Английский
Nature Communications, Год журнала: 2025, Номер 16(1)
Опубликована: Март 21, 2025
Abstract The development of scalable photoelectrochemical water splitting with high solar-to-hydrogen efficiency and long-term stability is essential while challenging for practical application. Here, we design a BiVO 4 photoanode gradient distributed oxygen vacancies, which induces strong dipole fields to promote charge separation. Growing sea-urchin-like FeOOH cocatalyst on the leads photocurrent density 7.0 mA cm −2 at 1.23 V versus reversible hydrogen electrode stable over 520 h under AM 1.5 G illumination. By integrating silicon photovoltaic cell, standalone artificial leaf achieves 8.4%. scale-up these leaves up 441 2 in size can deliver 2.7% natural sunlight. Life cycle assessment analysis shows that solar has little environmental footprint production. Our study demonstrates possibility designing metal oxide-based
Язык: Английский
Процитировано
2
Energy Conversion and Management, Год журнала: 2025, Номер 326, С. 119500 - 119500
Опубликована: Янв. 23, 2025
Язык: Английский
Процитировано
0
Applied Sciences, Год журнала: 2025, Номер 15(3), С. 1495 - 1495
Опубликована: Фев. 1, 2025
This study investigates the development of pore-filling anion-exchange membranes (PFAEMs) for water-electrolysis applications. Ionomers using two different cross-linking monomers, namely hydrophilic C10 and hydrophobic C11, along with a common electrolyte monomer, E3, were compared in terms through-plane ion conductivity, hydrogen permeability, mechanical chemical stability, I-V polarization, durability. The results revealed that E3-C10 PFAEM exhibited 40% higher OH− conductivity (98.7 ± 7.0 mS cm−1) than E3-C11 similar ion-exchange capacity. improvement was attributed to improved separation domains, creating well-connected channels by C10. Alkaline stability tests demonstrated retained E3-C11, due absence ether linkages increased resistance nucleophilic attack. During operations, PFAEMs showed 10% better durability 87% lower confirming their suitability anion-exchange-membrane water electrolysis (AEMWE). Despite PFAEM, performance limited interfacial resistance. It is suggested ionomer-coated electrodes could further enhance AEMWE leveraging E3-C10. Overall, this provides valuable guidance on strategies utilizing electrolysis.
Язык: Английский
Процитировано
0
Energies, Год журнала: 2025, Номер 18(4), С. 796 - 796
Опубликована: Фев. 8, 2025
The circular economy offers a vital avenue for sustainable development by optimizing resource utilization through reusing and recycling materials. This study focuses on the lifecycle assessment (LCA) of 5 MW alkaline water electrolysis (AWE) system, emphasizing end-of-life (EoL) strategies, material recovery, their environmental implications. Focusing reuse critical materials—including stainless steel nickel—we argue that enhancing efficiency in AWE systems can lead to significant reductions global warming potential (GWP). Our LCA reveals manufacturing an system from recycled materials results 50% decrease GWP compared virgin Despite operational focus previous studies, our research uniquely incorporates comprehensive EoL considerations, assessing realistic scenarios highlight recovery component after system’s 20-year lifespan. Notably, 77% be or reused, though substantial impacts certain components, particularly inverter nickel, necessitate ongoing improved technologies. underscores role systematic strategic selection enhance sustainability profile hydrogen production By bridging gap between management systems, findings contribute broader aim advancing principles clean energy transitions. Ultimately, emphasizes need integrating innovative methods strategies lower carbon footprints security, aligning with industrial practices future demands.
Язык: Английский
Процитировано
0
Fuel, Год журнала: 2025, Номер 395, С. 135165 - 135165
Опубликована: Март 29, 2025
Язык: Английский
Процитировано
0
Energies, Год журнала: 2024, Номер 17(22), С. 5682 - 5682
Опубликована: Ноя. 13, 2024
Anion exchange membrane electrolysis, which combines the advantages of both alkaline electrolysis and proton-exchange is a promising technology to reduce cost hydrogen production. The present work focused on study electrochemical phenomena AEM investigation key factors production system. numerical model established according reactions, polarization phenomena, power consumption balance plant components effects operation parameters, including temperature pressure electrolyzer, electrolyte concentration, supply energy efficiency are studied. basic water cells analyzed by simulations reversible potential activation, ohmic concentration polarizations. results reveal that increasing operating electrolyzer has positive system’s efficiency. By conducting an optimization analysis temperature—which uses heat generated reaction minimize pump heater—the system with at 328 K 30 bar can deliver up 200 under 56.4%.
Язык: Английский
Процитировано
0
International Journal of Hydrogen Energy, Год журнала: 2024, Номер unknown
Опубликована: Ноя. 1, 2024
Язык: Английский
Процитировано
0