Nano Energy, Год журнала: 2023, Номер 110, С. 108380 - 108380
Опубликована: Март 24, 2023
Язык: Английский
Energy & environment materials, Год журнала: 2022, Номер 6(5)
Опубликована: Май 28, 2022
Electrochemical water splitting represents one of the most promising technologies to produce green hydrogen, which can help realize goal achieving carbon neutrality. While substantial efforts on a laboratory scale have been made for understanding fundamental catalysis and developing high‐performance electrocatalysts two half‐reactions involved in electrocatalysis, much less attention has paid doing relevant research larger scale. For example, few such researches done an industrial Herein, we review very recent endeavors bridge gaps between applications electrolysis. We begin by introducing fundamentals electrochemical then present comparisons testing protocol, figure merit, catalyst interest, manufacturing cost industry‐based water‐electrolysis research. Special is tracking surface reconstruction process identifying real catalytic species under different conditions, highlight significant distinctions corresponding mechanisms. Advances designs industry‐relevant electrolysis are also summarized, reveal progress moving practical forward accelerating synergies material science engineering. Perspectives challenges electrocatalyst design strategies proposed finally further lab‐scale large‐scale electrocatalysis applications.
Язык: Английский
Процитировано
333
Nano-Micro Letters, Год журнала: 2023, Номер 15(1)
Опубликована: Фев. 16, 2023
The electrocatalytic water splitting technology can generate high-purity hydrogen without emitting carbon dioxide, which is in favor of relieving environmental pollution and energy crisis achieving neutrality. Electrocatalysts effectively reduce the reaction barrier increase efficiency. Facet engineering considered as a promising strategy controlling ratio desired crystal planes on surface. Owing to anisotropy, with different orientations usually feature facet-dependent physical chemical properties, leading differences adsorption energies oxygen or intermediates, thus exhibit varied activity toward evolution (HER) (OER). In this review, brief introduction basic concepts, fundamental understanding mechanisms well key evaluating parameters for both HER OER are provided. formation facets comprehensively overviewed aiming give scientific theory guides realize dominant planes. Subsequently, three strategies selective capping agent, etching coordination modulation tune summarized. Then, we present an overview significant contributions facet-engineered catalysts HER, OER, overall splitting. particular, highlight that density functional calculations play indispensable role unveiling structure–activity correlation between plane catalytic activity. Finally, remaining challenges provided future prospects designing advanced electrocatalysts discussed.
Язык: Английский
Процитировано
157
Advanced Energy Materials, Год журнала: 2023, Номер 13(16)
Опубликована: Март 9, 2023
Abstract Solar‐driven water electrolysis has been considered to be a promising route produce green hydrogen, because the conventional system is not completely renewable as it requires power from nonrenewable fossil fuel sources. This review emphasizes strategies for solar‐driven electrolysis, including construction of photovoltaic (PV)‐water electrolyzer systems, PV‐rechargeable energy storage device‐water systems with solar sole input energy, and photoelectrochemical splitting systems. The basic discussions above are first presented. Meanwhile, replacing oxygen evolution reaction electrooxidation organic compounds can effectively improve efficiency splitting. Also, seawater greatly broadens practical applications due abundant reserves seawater. Recent years have witnessed great development in field electrolysis. recent research area subsequently reviewed. Finally, perspectives on existing challenges along some opportunities further provided.
Язык: Английский
Процитировано
151
Advanced Energy Materials, Год журнала: 2022, Номер 13(2)
Опубликована: Ноя. 23, 2022
Abstract Suffering from the competition adsorption between oxygen reduction reaction (ORR) and evolution (OER), development of high‐efficiency electrocatalysts with bifunctional properties still remains a challenge. Herein, novel effective neodymium‐evoked valence electronic perturbation strategy to improve balance reversible electrocatalysis metallic cobalt sites is proposed. To heighten coupling Nd Co, metal‐organic‐framework‐induced method chosen prepare target catalyst atomic Nd‐doped Co on an N‐doped carbon substrate. The as‐prepared presents excellent electrocatalytic low overpotential 288 mV at 10 mA cm −2 for OER high half‐wave potential 0.85 V ORR. robust stabilities both ORR are also proven. electrochemical in situ Raman spectra confirm surface dynamic change transformation intermediates by noting formation Co–OOH. Theoretical calculations verify that balanced owing strong 3d‐Nd 4f orbital effect below Fermi level. Moreover, practicability further demonstrated solid‐state rechargeable Zn‐Air batteries, which exhibit large power density long cycling life.
Язык: Английский
Процитировано
149
Advanced Materials, Год журнала: 2022, Номер 34(43)
Опубликована: Сен. 2, 2022
The development of highly efficient non-precious metal electrocatalysts for the oxygen evolution reaction (OER) in low-grade or saline water is currently great importance large-scale production hydrogen. In this study, by using an electrochemical activation pretreatment, oxy(hydroxide) nanosheet structures derived from self-supported nickel-iron phosphide and nitride nanoarrays grown on Ni foam are successfully fabricated OER catalysis water. It demonstrated that different NiOOH NiOOH@FeOOH (NiOOH FeOOH) generated phosphide, respectively, after activation. particular, heteroarchitecture shows outstanding electrocatalytic performance with ultralow overpotential 292 mV to drive current density 500 mA cm-2 . An unconventional dual-sites mechanism (UDSM) proposed address process show FeOOH underlayer plays a critical role regarding enhanced activity NiOOH. new possible UDSM involving two sites presents understanding multi-OH layer complexes, which expected guide design electrocatalysts.
Язык: Английский
Процитировано
143
InfoMat, Год журнала: 2022, Номер 5(1)
Опубликована: Окт. 13, 2022
Abstract The hydrogen energy generated by the electrocatalytic water splitting reaction has been established as a renewable and clean carrier with ultra‐high density, which can well make up for shortcomings of conventional sources, such geographical limitations, climatic dependence, wastage. Notably, introduction electrocatalysts enhance efficiency process to generate hydrogen. Particularly, heterostructure constructed coupling multiple components (or phases) have emerged most promising option due well‐known electronic synergistic effects. existing reviews on interface engineering electrocatalyst design mostly focus relationship between heterostructures specific reactions. However, comprehensive overview integration model building, directional synthesis, mechanism rarely reported. To this end, in review, development catalysts is systematically introduced from perspective classification, growth regulation performance based interfacial microenvironment (bonding, configuration, lattice strain, etc.), thereby offering useful insights construction models. Besides, combined current applications strategies, challenges future are discussed relevant solutions proposed. Overall, review serve theoretical reference mechanism, further promote production technologies low consumption high yield. image
Язык: Английский
Процитировано
143
EcoEnergy, Год журнала: 2023, Номер 1(2), С. 425 - 436
Опубликована: Дек. 1, 2023
Abstract Introducing oxygen atoms into nickel‐based alloys is an effective strategy for constructing water dissociation sites hydrogen evolution reaction (HER). However, controlling content to realize the best match of and adsorption challenging. Herein, we exploit self‐integration process MoNi alloy in molten salts introduce atoms, which ultimately leads localized generation robust NiO x H y around alloys. Interestingly, Mo further doped (Mo‐NiO ) construct active center due high mobility ionic solutions. Owing covering space confinement salt, exactly decorated with Mo‐NiO nanosheets. Both physical characterization density functional theory calculation prove that electron transport, capability, are finely tuned benefited from O doping, thus greatly expediting HER kinetics. exhibits a much lower overpotential 33 mV at 10 cm −2 alkaline electrolyte, even superior Pt/C benchmark. Moreover, final requires low 57 acidic media. This enhancement ascribed successful assembly foam elicited by salt.
Язык: Английский
Процитировано
139
Chemical Engineering Journal, Год журнала: 2022, Номер 449, С. 137791 - 137791
Опубликована: Июнь 25, 2022
Язык: Английский
Процитировано
118
Chemical Engineering Journal, Год журнала: 2022, Номер 453, С. 139796 - 139796
Опубликована: Окт. 15, 2022
Язык: Английский
Процитировано
110
Nano Energy, Год журнала: 2022, Номер 103, С. 107753 - 107753
Опубликована: Авг. 27, 2022
Язык: Английский
Процитировано
98