Structure–Activity Relationships in Oxygen Electrocatalysis

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Сен. 30, 2024

Abstract Oxygen electrocatalysis, as the pivotal circle of many green energy technologies, sets off a worldwide research boom in full swing, while its large kinetic obstacles require remarkable catalysts to break through. Here, based on summarizing reaction mechanisms and situ characterizations, structure–activity relationships oxygen electrocatalysts are emphatically overviewed, including influence geometric morphology chemical structures electrocatalytic performances. Subsequently, experimental/theoretical is combined with device applications comprehensively summarize cutting‐edge according various material categories. Finally, future challenges forecasted from perspective catalyst development applications, favoring researchers promote industrialization electrocatalysis at an early date.

Язык: Английский

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Advanced NiCo2O4 /ZnO-CuO/NF composite for high-performance asymmetric supercapacitor and efficient oxygen evolution reaction applications

Advanced Composites and Hybrid Materials, Год журнала: 2025, Номер 8(1)

Опубликована: Янв. 24, 2025

Язык: Английский

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Design High‐Entropy Core‐Shell Nickel‐Rich Cobalt‐Free Cathode Material Toward High Performance Lithium Batteries

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 2, 2025

Abstract The structural instability of lithium‐based transition metal layered oxides during electrochemical cycling‐exacerbated by phenomena such as dissolution and phase transitions‐induces rapid capacity degradation, thus constraining their applicability in high‐energy‐density lithium batteries. While coating these materials can bolster stability, the employment electrochemically inactive coatings may inadvertently undermine energy storage performance, presenting a significant trade‐off. In response to this challenge, an innovative core‐shell cathode architecture is presented, wherein high entropy doped LiNi 1/6 Mn Al Ti Mo Ta O 2 serves shell nickel‐rich cobalt‐free 0.89 0.11 constitutes core, synthesized through simple two‐step co‐precipitation methodology (designated LHECNM). This high‐entropy preserves core's performance while effectively mitigating transformations ion dissolution, thereby enhancing robustness. Moreover, configuration significantly diminishes barrier for Li + diffusion, facilitating superior transport dynamics. Consequently, LHECNM demonstrates remarkable achieving discharge 201.57 mAh g −1 , commendable rate capability up 5C, impressive 92% retention over prolonged cycling. investigation elucidates promising paradigm design materials, offering profound insights advancement future technologies.

Язык: Английский

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Triphase Heterogeneous Electrocatalysts of Ni and Co for High‐Performing Li‐O₂ Batteries

EcoMat, Год журнала: 2025, Номер 7(3)

Опубликована: Фев. 16, 2025

ABSTRACT The limited energy density of the current Li‐ion batteries restricts electrification transportation to small‐ and medium‐scale vehicles. On contrary, Li‐O 2 (LOBs), with their significantly higher theoretical density, can power heavy‐duty transportation, if sluggish electrode kinetics in these devices be substantially improved. use solid electrocatalysts at cathode is a viable strategy address this challenge, but fail provide sufficient discharge depths cyclability, primarily due formation film‐like product, Li₂O₂, on catalytic sites, which obstructs charge transport gas diffusion pathways. Here, we report that triphase heterogeneous catalyst comprising NiCoP, NiCo S 4 , O assembled into hierarchical hollow architecture (NC‐3@Ni), efficiently modulates morphology orientation facilitating sheet‐like growth Li perpendicular surface. These modifications enable LOB deliver high capacity 25 162 mAh g −1 400 mA along impressive cycling performance, achieving 270 cycles depth 1000 exceeding 1350 h continuous operation. This promising performance attributed presence individual electrophilic nucleophilic phases within microstructure catalyst, collectively promoting . image

Язык: Английский

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Optimizing Sodium Ion Adsorption Through Robust d–d Orbital Modulation for Efficient Capacitive Deionization

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 5, 2024

Abstract Unraveling the fundamental mechanisms of sodium ion adsorption behavior is crucial for guiding design electrode materials and enhancing performance capacitive deionization systems. Herein, optimization systematically investigated through robust d–d orbital interactions within zinc‐doped iron carbide, facilitated by a novel liquid nitrogen quenching treatment. Liquid treatment can enhance coordination number, strengthen interactions, promote electron transfer, shift d‐band center Fe closer to Fermi level, thereby ions energy. Consequently, obtained material achieves superior gravimetric capacity 121.1 mg g −1 attractive cyclic durability. The highly competitive compared vast majority related research works in field deionization. Furthermore, adsorption/desorption are substantiated ex situ techniques, revealing dynamic atomic electronic structure evolutions under operational conditions. This work demonstrates that optimizing via modulation enabled an effective approach developing efficient materials.

Язык: Английский

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Intrinsically conductive and highly stretchable liquid metal/carbon nanotube/elastomer composites for strain sensing and electromagnetic wave absorption

Advanced Composites and Hybrid Materials, Год журнала: 2024, Номер 8(1)

Опубликована: Ноя. 30, 2024

Язык: Английский

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Lowering Charge Potential of Li-O2 Battery to 3.25 V through a Facile Lithiation of Pd-CN Cathode Catalyst

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 358, С. 124435 - 124435

Опубликована: Июль 26, 2024

Язык: Английский

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Construction of Ag2Mo2O7-loaded graphdiyne S-scheme heterojunction for photocatalytically coupled peroxydisulfate-activated degradation of 2,4-dichlorophenol

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 158196 - 158196

Опубликована: Дек. 1, 2024

Язык: Английский

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Proposing lithium pump mechanism for observing Ag-Li two-phase interface reaction of in-situ Li-O2 battery by two-step method

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 683, С. 995 - 1002

Опубликована: Янв. 2, 2025

Язык: Английский

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Ambient Multivariate Synthesis of ZIF-8 Nanoparticles: Optimization and Application in Li Metal Batteries

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 178578 - 178578

Опубликована: Янв. 1, 2025

Язык: Английский

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