Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160362 - 160362
Опубликована: Фев. 1, 2025
Язык: Английский
Journal of the American Chemical Society, Год журнала: 2024, Номер 146(22), С. 15515 - 15524
Опубликована: Май 24, 2024
The continuous dissolution and oxidation of active sites in Ru-based electrocatalysts have greatly hindered their practical application proton exchange membrane water electrolyzers (PEMWE). In this work, we first used density functional theory (DFT) to calculate the energy Ru 3d transition metal-doped MRuOx (M = Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn) evaluate stability for acidic oxygen evolution reaction (OER) screen out ZnRuOx as best candidate. To confirm theoretical predictions, experimentally synthesized these materials found that indeed displays robust OER with a negligible decay η10 after 15 000 CV cycles. Of importance, using anode, PEMWE can run stably 120 h at 200 mA cm–2. We also further uncover mechanism ZnRuOx, i.e., Zn atoms doped outside nanocrystal would form "Zn-rich" shell, which effectively shortened average Ru–O bond lengths strengthen interaction therefore boosted intrinsic OER. short, work not only provides new study paradigm DFT calculations guide experimental synthesis but offers proof-of-concept metal dopants RuO2 stabilizer universal principle develop high-durability catalysts PEMWE.
Язык: Английский
Процитировано
57
Science Advances, Год журнала: 2024, Номер 10(20)
Опубликована: Май 17, 2024
The ocean, a vast hydrogen reservoir, holds potential for sustainable energy and water development. Developing high-performance electrocatalysts production under harsh seawater conditions is challenging. Here, we propose incorporating protective V 2 O 3 layer to modulate the microcatalytic environment create in situ dual-active sites consisting of low-loaded Pt Ni N. This catalyst demonstrates an ultralow overpotential 80 mV at 500 mA cm −2 , mass activity 30.86 times higher than Pt-C maintains least hours seawater. Moreover, assembled anion exchange membrane electrolyzers (AEMWE) demonstrate superior durability even demanding industrial conditions. In localized pH analysis elucidates environmental regulation mechanism layer. Its role as Lewis acid enables sequestration excess OH − ions, mitigate Cl corrosion, alkaline earth salt precipitation. Our protection strategy by using presents promising cost-effective approach large-scale green production.
Язык: Английский
Процитировано
31
Chemical Society Reviews, Год журнала: 2024, Номер 53(14), С. 7455 - 7488
Опубликована: Янв. 1, 2024
Seawater electrolysis for the production of fuels and chemicals involved in onshore offshore plants powered by renewable energies offers a promising avenue unique advantages energy environmental sustainability. Nevertheless, seawater presents long-term challenges issues, such as complex composition, potential side reactions, deposition poisoning microorganisms metal ions, well corrosion, thus hindering rapid development technology. This review focuses on value-added (hydrogen beyond) fine through electrolysis, step towards sustainable carbon neutrality. The principle related are first introduced, redox reaction mechanisms summarized. Strategies operating anodes cathodes including application chloride- impurity-resistant electrocatalysts/membranes reviewed. We comprehensively summarize (hydrogen, monoxide, sulfur, ammonia,
Язык: Английский
Процитировано
28
Energy & Environmental Science, Год журнала: 2024, Номер 17(19), С. 6897 - 6942
Опубликована: Янв. 1, 2024
This review focuses on the latest developments in direct seawater electrolysis, specifically electrocatalysts, hybrid anodic oxidation, and electrolyzers, providing a glimpse into future of environmentally friendly hydrogen generation.
Язык: Английский
Процитировано
17
ACS Nano, Год журнала: 2024, Номер 18(33), С. 21651 - 21684
Опубликована: Авг. 12, 2024
In order to facilitate electrochemical oxygen reactions in electrically rechargeable zinc-air batteries (ZABs), there is a need develop innovative approaches for efficient electrocatalysts. Due their reliability, high energy density, material abundance, and ecofriendliness, ZABs hold promise as next-generation storage conversion devices. However, the large-scale application of currently hindered by slow kinetics reduction reaction (ORR) evolution (OER). development heterostructure-based electrocatalysts has potential surpass limitations imposed intrinsic properties single material. This Account begins with an explanation configurations fundamentals electrochemistry air electrode. Then, we summarize recent progress respect variety heterostructures that exploit bifunctional electrocatalytic overview impact on ZAB performance. The range heterointerfacial engineering strategies improving ORR/OER performance includes tailoring surface chemistry, dimensionality catalysts, interfacial charge transfer, mass transport, morphology. We highlight multicomponent design take these features into account create advanced highly active catalysts. Finally, discuss challenges future perspectives this important topic aim enhance activity batteries.
Язык: Английский
Процитировано
16
Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 115644 - 115644
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
2
Nature, Год журнала: 2025, Номер 639(8054), С. 360 - 367
Опубликована: Март 5, 2025
Язык: Английский
Процитировано
2
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(47)
Опубликована: Авг. 29, 2024
Abstract Direct electrochemical seawater splitting is a renewable, scalable, and potentially economic approach for green hydrogen production in environments where ultra‐pure water not readily available. However, issues related to low durability caused by complex ions pose great challenges its industrialization. In this review, mechanistic analysis of electrolytic discussed. We critically analyze the development electrolysis identify at both anode cathode. Particular emphasis given elucidating rational strategies designing electrocatalysts/electrodes/interfaces with long lifetimes realistic including inducing passivating anion layers, preferential OH − adsorption, employing anti‐corrosion materials, fabricating protective immobilizing Cl on surface electrocatalysts, tailoring adsorption sites, inhibition binding Mg 2+ Ca , hydroxide precipitation adherence, co‐electrosynthesis nano‐sized hydroxides. Synthesis methods electrocatalysts/electrodes innovations electrolyzer are also Furthermore, prospects developing technologies clean generation summarized. found that researchers have rethought role ions, as well more attention cathodic reaction electrolyzers, which conducive accelerate commercialization electrolysis.
Язык: Английский
Процитировано
14
Advanced Materials, Год журнала: 2024, Номер unknown
Опубликована: Сен. 18, 2024
Abstract Although hydrogen production through seawater electrolysis combined with offshore renewable energy can significantly reduce the cost, corrosive anions in strictly limit commercialization of direct technology. Here, it is discovered that electrolytic anode be uniformly protected a environment by constructing NiFeBa‐LDH catalyst assisted additional SO 4 2− electrolyte. In experiments, achieves unprecedented stability over 10 000 h at 400 mA cm −2 both alkaline saline electrolyte and seawater. Characterizations simulations reveal atomically dispersed Ba 2+ enables chemical fixation free on surface, which generates dense layer to repel Cl − along preferentially adsorbed presence an applied electric field. terms simplicity effectiveness design, confident beacon for
Язык: Английский
Процитировано
14
Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 351, С. 123995 - 123995
Опубликована: Апрель 24, 2024
Язык: Английский
Процитировано
13