Ordered porous Mn − Co spinel oxide (CoMn2O4) with vacancies modulation as efficient electrocatalyst for Li − O2 battery DOI
Linna Dai, Xin Zhou, Yuan Yang

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 670, P. 719 - 728

Published: May 21, 2024

Language: Английский

A high-entropy cathode catalyst with multiphase catalytic capability of Li2O2 and Li2CO3 enabling ultralong cycle life in Li–air batteries DOI
Xia Li, Guoliang Zhang, Dongmei Zhang

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(21), P. 8198 - 8208

Published: Jan. 1, 2024

High entropy design guidance enables a modulated broad d-band of cathode catalyst with efficient d–p coupling for all reactants, realizing multiphasic catalytic capability Li 2 O and CO 3 ultralong cycle life in Li–air Li–CO batteries.

Language: Английский

Citations

18
High Entropy Alloys Enable Durable and Efficient Lithium‐Mediated CO2 Redox Reactions DOI Creative Commons
Liang Sun, Jodie A. Yuwono, Shilin Zhang

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(25)

Published: April 1, 2024

Abstract Designing electrocatalysts with high activity and durability for multistep reduction oxidation reactions is challenging. High‐entropy alloys (HEAs) are intriguing due to their tunable geometric electronic structure through entropy effects. However, understanding the origin of exceptional performance identifying active centers hindered by diverse microenvironment in HEAs. Herein, NiFeCoCuRu HEAs designed an average diameter 2.17 nm, featuring different adsorption capacities various reactants intermediates Li‐mediated CO 2 redox reactions, introduced. The electronegativity‐dependent nature induces significant charge redistribution, shifting d ‐band center closer Fermi level forming highly clusters Ru, Co, Ni Li‐based compounds adsorptions. This lowers energy barriers simultaneously stabilizes *LiCO LiCO 3 +CO intermediates, enhancing efficiency both Li decomposition over extended periods. work provides insights into specific site interactions highlighting potential as promising catalysts intricate reactions.

Language: Английский

Citations

17
Unlocking the critical roles of N, P Co-Doping in MXene for Lithium‐Oxygen Batteries: Elevated d‐Band center and expanded interlayer spacing DOI
Zhonghua Wang, Zhen Dong,

Bangjun Wu

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 676, P. 368 - 377

Published: July 18, 2024

Language: Английский

Citations

11
Tuning Dual Catalytic Active Sites of Pt Single Atoms Paired with High-Entropy Alloy Nanoparticles for Advanced Li-O2 Batteries DOI
Lei Li, Minghao Hua,

J. W. Li

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 17, 2025

To achieve a long cycle life and high-capacity performance for Li-O2 batteries, it is critical to rationally modulate the formation decomposition pathway of discharge product Li2O2. Herein, we designed highly efficient catalyst containing dual catalytic active sites Pt single atoms (PtSAs) paired with high-entropy alloy (HEA) nanoparticles oxygen reduction reaction (ORR) in batteries. HEA moderate d-band center enhance surface adsorbed LiO2 intermediate (LiO2(ads)), while PtSAs exhibit weak adsorption energy promote soluble (LiO2(sol)). An optimal ratio between LiO2(ads) LiO2(sol) was realized via regulating etching conditions dealloying synthesis process obtaining high-performance The ORR kinetics are accelerated, parasitic reactions restrained As result, batteries based on HEA@Pt-PtSAs demonstrate an ultralow overpotential (0.3 V) ultralong cycling 470 cycles at 1000 mA g-1. insights into synthetic strategies importance balancing pathways will offer guidance devising multisite synergistic catalysts accelerate redox-reaction

Language: Английский

Citations

1
Enhanced Oxygen Evolution Kinetics via Single‐Atom Catalyst Design: A Review DOI Creative Commons

Zhen Yuan,

Yingjie Yu,

Qiao Xie

et al.

Advanced Materials Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 25, 2025

Abstract This review highlights recent advancements in enhancing oxygen evolution reaction kinetics through the design of single‐atom catalysts. By leveraging unique properties catalysts (SACs), including high atom utilization and tunable electronic structures, researchers have developed with superior activity stability for (OER). Key strategies SACs design, such as support selection, coordination environment, doping effects are discussed, while also examining role advanced characterization techniques elucidating catalytic mechanisms. Finally, future directions challenges field outlined to guide development next‐generation OER

Language: Английский

Citations

1
Ampere-Hour-Scale Quasi-Solid-State Zinc–Air Batteries with a Wide Operating Temperature Range (−50 to 60 °C) DOI

Tengteng Gu,

Yu Jia, Linjie Zhang

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: March 23, 2025

Quasi-solid-state Zn–air batteries typically exhibit limited rate capability (<10 mA cm–2), primarily due to sluggish oxygen electrocatalysis and unstable electrochemical interfaces. Herein, we report a realistic quasi-solid-state battery featuring multiactive sites' MnFeCoNiRu high-entropy alloys uniformly anchored in carbon nanofibers (MnFeCoNiRu/CNF) as the air cathode poly(acrylamide-co-acrylic acid) organohydrogel an antifreezing conductor electrolyte. The proposed exhibits superb bifunctional activity (ΔE = 0.64 V) stability (>10,000 cycles) toward reversible reaction, outperforming commercial Pt/C RuO2, which is mainly MnFeCoNiRu/CNF possessing different active sites reactions, evidenced by situ Raman spectroscopy density functional theory. Furthermore, with its multiple intermolecular hydrogen bond network modified addition of dimethyl sulfoxide reveals strength at freezing temperature (−50 °C) high chemical/mechanical robustness. A capacity 7.15 Ah energy 110 Wh kgcell–1 are normally measured cycle test under 500 250/500 mAh conditions. operate effectively rates 5–2000 over wide range from −50 60 °C.

Language: Английский

Citations

1
High entropy oxides for electrochemical energy storage and conversion: A critical review DOI

Qiya He,

Jiatong Li, Wan Liu

et al.

Journal of Power Sources, Journal Year: 2024, Volume and Issue: 619, P. 235207 - 235207

Published: Aug. 14, 2024

Language: Английский

Citations

8
Improving upon rechargeable battery technologies: On the role of high-entropy effects DOI
Zihao Zhou, Yuan Ma, Torsten Brezesinski

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

An overview of high-entropy strategies for batteries is provided, emphasizing their unique structural/compositional attributes and positive effects on stability performance, alongside a discussion key challenges future research directions.

Language: Английский

Citations

8
Oxygen-vacancy-enriched MgO/carbon composite as a highly efficient electrocatalyst for phenazine/dihydrophenazine redox reaction of aqueous phenazine redox flow battery DOI
Xin Zhang, Haiguang Gao, Wei Jin

et al.

Materials Today Energy, Journal Year: 2024, Volume and Issue: 43, P. 101587 - 101587

Published: April 25, 2024

Language: Английский

Citations

7
Compositionally engineered NiCoLDH@rGO as bifunctional cathode catalyst for rechargeable Li-O2/Li-CO2 battery DOI

Sekar Sandhiya,

Perumal Elumalai

Electrochimica Acta, Journal Year: 2024, Volume and Issue: 487, P. 144195 - 144195

Published: March 30, 2024

Language: Английский

Citations

4