Applied Energy, Journal Year: 2025, Volume and Issue: 389, P. 125733 - 125733
Published: March 23, 2025
Language: Английский
iScience, Journal Year: 2023, Volume and Issue: 27(1), P. 108736 - 108736
Published: Dec. 15, 2023
Herein, a hierarchical NiTe@NiFe-LDH core-shell array on Ni foam (NiTe@NiFe-LDH/NF) demonstrates its effectiveness for oxygen evolution reaction (OER) in alkaline seawater electrolyte. This NiTe@NiFe-LDH/NF showcases remarkably low overpotentials of 277 mV and 359 achieving current densities 100 500 mA cm
Language: Английский
Citations
49
Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(30)
Published: May 27, 2024
Abstract Electrochemical water splitting is a promising technique for the production of high‐purity hydrogen. Substituting slow anodic oxygen evolution reaction with an oxidation that thermodynamically more favorable enables energy‐efficient Moreover, this approach facilitates degradation environmental pollutants and synthesis value‐added chemicals through rational selection small molecules as substrates. Strategies small‐molecule electrocatalyst design are critical to electrocatalytic performance, focus on achieving high current density, selectivity, Faradaic efficiency, operational durability. This perspective discusses key factors required further advancement, including technoeconomic analysis, new reactor system design, meeting requirements industrial applications, bridging gap between fundamental research practical product detection separation. aims advance development hybrid electrolysis applications.
Language: Английский
Citations
41
Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(35), P. 23147 - 23178
Published: Jan. 1, 2024
Hydrogen production by electrochemical hydrogen evolution reaction (HER) using eco-friendly seawater electrolysis can help address the energy shortage.
Language: Английский
Citations
23
Small Methods, Journal Year: 2024, Volume and Issue: unknown
Published: April 1, 2024
Abstract In contrast to the thermodynamically unfavorable anodic oxygen evolution reaction, electrocatalytic urea oxidation reaction (UOR) presents a more favorable thermodynamic potential. However, practical application of UOR has been hindered by sluggish kinetics. this study, hierarchical porous nanosheet arrays featuring abundant Ni‐WO 3 heterointerfaces on nickel foam (Ni‐WO /NF) is introduced as monolith electrode, demonstrating exceptional activity and stability toward UOR. The /NF catalyst exhibits unprecedentedly rapid kinetics (200 mA cm −2 at 1.384 V vs. RHE) high turnover frequency (0.456 s −1 ), surpassing most previously reported Ni‐based catalysts, with negligible decay observed during durability test lasting 150 h. Ex situ X‐ray photoelectron spectroscopy density functional theory calculations elucidate that WO interface significantly modulates local charge distribution Ni species, facilitating generation 3+ optimal affinity for interacting molecules CO 2 intermediates This mechanism accelerates interfacial Additionally, in Fourier transform infrared provides deep insights into substantial contribution sites electrocatalysis, unraveling underlying molecular‐level mechanisms. Finally, study explores direct fuel cell inspire future implementations.
Language: Английский
Citations
16
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(47)
Published: Aug. 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.
Language: Английский
Citations
16
ACS Nano, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 11, 2025
Transition-metal dichalcogenides (TMDs), such as molybdenum disulfide (MoS2), have emerged a generation of nonprecious catalysts for the hydrogen evolution reaction (HER), largely due to their theoretical adsorption energy close that platinum. However, efforts activate basal planes TMDs primarily centered around strategies introducing numerous atomic vacancies, creating vacancy–heteroatom complexes, or applying significant strain, especially acidic media. These approaches, while potentially effective, present substantial challenges in practical large-scale deployment. Here, we report gap-state engineering strategy controlled activation S atom MoS2 through metal single-atom doping, effectively tackling both efficiency and stability alkaline water seawater splitting. A versatile synthetic methodology allows fabrication series single-metal atom-doped materials (M1/MoS2), featuring widely tunable densities with each dopant replacing Mo site. Among these (Mn1, Fe1, Co1, Ni1), Co1/MoS2 demonstrates outstanding HER performance media, overpotentials at mere 159 164 mV 100 mA cm–2, Tafel slopes 41 45 dec–1, respectively, which surpasses all reported TMD-based benchmark Pt/C during splitting, can be attributed an optimal modulation associated sulfur atoms. Experimental data correlating doping density identity performance, conjunction calculations, also reveal descriptor linked near-Fermi gap state modulation, corroborated by observed increase unoccupied 3p states.
Language: Английский
Citations
3
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 496, P. 153187 - 153187
Published: June 16, 2024
Language: Английский
Citations
11
Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)
Published: Feb. 13, 2024
Abstract Decoupled electrolysis for hydrogen production with the aid of a redox mediator enables two half-reactions operating at different rates, time, and spaces, which offers great flexibility in operation. Herein, pre-protonated vanadium hexacyanoferrate (p-VHCF) is synthesized. It high reversible specific capacity up to 128 mAh g −1 long cycling performance 6000 cycles retention about 100% current density 10 A due enhanced bonding network. By using this mediator, membrane-free water electrolytic cell built achieve decoupled oxygen production. More importantly, system hydrazine oxidation constructed, realizes not only separate generation but electricity through p-VHCF-N 2 H 4 liquid battery. Therefore, work flexible energy conversion storage driven by solar day-time output night-time.
Language: Английский
Citations
9
Journal of Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 115970 - 115970
Published: Jan. 1, 2025
Language: Английский
Citations
1
Applied Energy, Journal Year: 2025, Volume and Issue: 384, P. 125468 - 125468
Published: Feb. 3, 2025
Language: Английский
Citations
1