Small, Год журнала: 2024, Номер unknown
Опубликована: Авг. 30, 2024
Avoiding the stacking of active sites in catalyst structural design is a promising route for realizing oxygen evolution reaction (OER). Herein, using CoFe Prussian blue analoge cube with hollow structure (C-CoFe PBA) as derived support, highly effective Ni
Язык: Английский
Chemical Society Reviews, Год журнала: 2023, Номер 53(1), С. 163 - 203
Опубликована: Ноя. 29, 2023
The current strategies and basic mechanisms of metal nitrides for hydrogen production from seawater are reviewed.
Язык: Английский
Процитировано
72
Advanced Materials, Год журнала: 2023, Номер 36(1)
Опубликована: Сен. 23, 2023
Abstract The development of nonprecious metal catalysts to meet the activity‐stability balance at industrial‐grade large current densities remains a challenge toward practical alkali‐water electrolysis. Here, this work develops an orderly nanodendritic nickel (ND‐Ni) catalyst that consists ultrafine nanograins in chain‐like conformation, which shows both excellent activity and robust stability for density hydrogen evolution reaction (HER) alkaline media, superior currently applied Raney (R‐Ni) commercial electrolyzer (AWE). ND‐Ni featured by three‐dimensional (3D) interconnecting microporous structure endows with high specific surface area conductivity hydrophilicity, together afford charge/mass transport favorable HER kinetics densities. An actual AWE demonstrates durable water splitting 1.0 A cm −2 1.71 V under industrial conditions renders record‐low power consumption 3.95 kW h Nm −3 energy efficiency close 90%. price per gallon gasoline equivalent (GGE) is calculated be ≈$0.95, less than target $2.0 GGE 2026 from U.S. Department Energy. results suggest feasibility substitute R‐Ni AWE.
Язык: Английский
Процитировано
55
Advanced Energy Materials, Год журнала: 2024, Номер 14(31)
Опубликована: Май 20, 2024
Abstract It is of essential importance to design bifunctional electrocatalysts with excellent performance for both hydrogen evolution reaction (HER) and oxygen (OER) in seawater splitting. Herein, an approach manipulating electron redistribution NiCoP treated by P defect (P v ) engineering (NiCoP @NF) presented, exhibiting catalytic activities stability toward HER/OER alkaline solution. The reduces the surface electrooxidation reconfiguration energy barrier, making it easier drive local conversion crystals active oxy(hydroxide) OER. In addition, Ni site Co NiCoOOH are sites HER OER processes, respectively. situ generated PO 4 3− adsorbed on catalyst causes spatial repulsion, preventing Cl − corrosion electrolysis. AEM electrolyzer using @NF couple achieves high activity (2.43 V at 500 mA cm −2 long‐term durability (500 over 110 h). working efficiency 1.0 M KOH as 77.0% 100 price per GGE H 2 low $ 0.87.
Язык: Английский
Процитировано
49
Nature Communications, Год журнала: 2024, Номер 15(1)
Опубликована: Июнь 3, 2024
Abstract Low-energy consumption seawater electrolysis at high current density is an effective way for hydrogen production, however the continuous feeding of may result in accumulation Cl − , leading to severe anode poisoning and corrosion, thereby compromising activity stability. Herein, CoFeAl layered double hydroxide anodes with excellent oxygen evolution reaction are synthesized delivered stable catalytic performance 350 hours 2 A cm −2 presence 6-fold concentrated seawater. Comprehensive analysis reveals that Al 3+ ions electrode etched off by OH during process, resulting M vacancies boost activity. Additionally, self-originated Al(OH) n found adsorb on surface improve An assembly based a micropore membrane electrodes operates continuously 500 1 demonstrating their feasibility brine electrolysis.
Язык: Английский
Процитировано
40
Advanced Materials, Год журнала: 2024, Номер 36(29)
Опубликована: Март 26, 2024
Polymetallic phosphides exhibit favorable conductivities. A reasonable design of nano-metal-organic frame (MOF) composite morphologies and in situ introduction polymetallic into the framework can effectively improve electrolyte penetration rapid electron transfer. To address existing challenges, Ni, with a strong coordination ability N, is introduced to partially replace Co nano-Co-MOF composite. The hollow nanostructure stabilized through CoNi bimetallic low-temperature controllable phosphide generation rate. Co, P atoms, generated during reduction, enhance transfer rate within framework. X-ray absorption fine structure (XAFS) characterization results further confirm existence Ni-N, Ni-Ni, Co-Co structures nanocomposite. changes each component charge-discharge process electrochemical reactions are investigated using diffraction (XRD). Theoretical calculations that conductivity. VZNPGC//MXene MSCs, constructed active materials derived from nano MOF composites synthesized Ni
Язык: Английский
Процитировано
32
Advanced Materials, Год журнала: 2024, Номер 36(37)
Опубликована: Фев. 1, 2024
Abstract Seawater electrolysis for hydrogen production is a sustainable and economical approach that can mitigate the energy crisis global warming issues. Although various catalysts/electrodes with excellent activities have been developed high‐efficiency seawater electrolysis, their unsatisfactory durability, especially anodes, severely impedes industrial applications. In this review, attention paid to factors affect stability of anodes corresponding strategies designing catalytic materials prolong anode's lifetime. addition, two important aspects—electrolyte optimization electrolyzer design—with respect anode improvement are summarized. Furthermore, several methods rapid assessment proposed fast screening both highly active stable catalysts/electrodes. Finally, perspectives on future investigations aimed at improving systems outlined.
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
Nature Communications, Год журнала: 2024, Номер 15(1)
Опубликована: Июль 22, 2024
Abstract Hydrogen production by seawater electrolysis is significantly hindered high energy costs and undesirable detrimental chlorine chemistry in seawater. In this work, energy-saving hydrogen reported chlorine-free splitting coupling tip-enhanced electric field promoted electrocatalytic sulfion oxidation reaction. We present a bifunctional needle-like Co 3 S 4 catalyst grown on nickel foam with unique tip structure that enhances the kinetic rate improving current density region. The assembled hybrid electrolyzer combines thermodynamically favorable cathodic reduction can enable sustainable at of 100 mA cm −2 for up to 504 h. has potential scale-up industrial implementation electrolysis, which promising achieve economic efficiency environmental remediation.
Язык: Английский
Процитировано
28
Journal of Colloid and Interface Science, Год журнала: 2024, Номер 659, С. 821 - 832
Опубликована: Янв. 10, 2024
Язык: Английский
Процитировано
24
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 7, 2025
Abstract Electrochemical seawater splitting faces competing chlorine evolution reactions and corrosion, proposing significant obstacles to commercial applications. In this work, a feasible strategy is developed for the simultaneous oxidation of SO 4 2− CoFe LDH form an intercalation /CoFe LDH, which achieves excellent OER performance (265.2 mV@100 mA cm −2 ) satisfactory stability (1000 h@500 ). The presence found enhance intrinsic activity reduce corrosion tendency LDH. situ Raman selected area electron diffraction results demonstrated that are simultaneously generated inserted into interlayer. DFT calculations further confirmed insertion reduced Cl − adsorption, improved selectivity. Finally, in flow AEM electrolyzer, Pt/C system exhibited voltage only 2.264 V at 500 achieved stable operation natural 150 h. working efficiency as high 55.0% with price per GGE H 2 low $1.211, promising wide range
Язык: Английский
Процитировано
2