Upcycling Spent Cathodes from Li–Ion Batteries into a High-Entropy Alloy Catalyst with Reverse Electron Transfer for Li–O2 Batteries DOI
Peng Wang, Shan Guo, Yongbin Xu

et al.

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

Published: April 30, 2025

Traditional recovery of valuable metals from spent ternary lithium-ion batteries concentrates on complicated pyrometallurgy and hydrometallurgy routes. Direct reutilization these used to catalyze Li-O2 is highly appealing yet remains a significant challenge. Here, we report general synthesis ultrafine αNiCoMn (α = Pt, Ir, Ru) high-entropy alloy (HEA) nanoparticles anchored nitrogen-doped carbon (N-C) support through facile one-step Joule heating, which serves as high-efficiency catalyst for batteries. Solution alloying recycled NiCoMn with Pt group facilitates catalytic efficiency 3d-5d electronic interactions the assembly effect. Both experimental calculation results reveal that, driven by rapid, nonequilibrium thermal shock, electron transfer defies conventional expectations, where electrons are inclined higher electronegative surrounding atoms. This interesting reverse local charge redistribution orbital hybridization endow an elevated d-band center optimized structure. The induced coordination effects further generate active catalysis surfaces, favoring adsorption LiO2 intermediates facilitating rapid decomposition kinetics nanoscale Li2O2 products. These advantages HEA@N-C superior bifunctional activity, achieving ultralow polarization 0.27 V significantly enhanced cycling life 240 cycles. We anticipate that this work will provide insights into upcycling constructing efficient HEA electrocatalysts.

Language: Английский

Atomic Design of High-Entropy Alloys for Electrocatalysis DOI
Junlin Liu, Yile Zhang, Yiran Ding

et al.

ACS Materials Letters, Journal Year: 2024, Volume and Issue: 6(7), P. 2642 - 2659

Published: May 30, 2024

High-entropy alloys (HEAs) contain five or more main elements, and each element ranges in content from 5% to 35%. Due the abundant selectivity of excellent structural stability, adjustable active centers, HEAs have been widely used electrocatalysis. Designing HEA catalysts at atomic scale can deeply describe their complexity accurately reflect relationship between structure catalytic performance. In this Review, design HEA-based electrocatalysts is introduced it evaluated terms activity, selectivity, efficiency. Ingenuity level customize composition geometric HEAs, thereby enhancing intrinsic activity site, creating new sites, improving operational stability. The Review provides insights into electrocatalytic properties guidance for synthesis advanced viewpoint fabrication.

Language: Английский

Citations

7
High Entropy Induced Local Charge Enhancement Promotes Frank–Van der Merwe Growth for Dendrite‐Free Potassium Metal Batteries DOI Open Access
Che‐Bin Chang, Yi‐Ju Tseng, Ying‐Rui Lu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 13, 2024

Abstract Potassium metal batteries (PMBs) are promising for next‐generation energy storage. However, the high reactivity of anode causes instability in solid electrolyte interface (SEI), resulting Volmer‐Weber (V‐W) type deposition. To achieve uniform Frank‐van der Merwe (F‐M) deposition, entropy alloy nanoparticles designed (HEA NPs) with equimolar ratios Mn, Fe, Co, Cu, and Ni to enhance substrate‐K interface. HEA NPs K affinity N‐doped nanocarbon fiber substrate (N‐PCNF) maximize ion electron transport efficiency. The dendrite‐free horizontal growth confirmed through Operando X‐ray diffraction (XRD) optical microscopy (OM). Consequently, asymmetric cell exhibits ultra‐long cycling stability 2350 hours at a current density 8 mA cm −2 . full composed molten diffusion into decorated N‐PCNF perylene‐3,4,9,10‐tetracarboxylic dianhydride cathode (HEA‐N‐PCNF‐K||PTCDA) delivers an 331 W h kg −1 remains stable over 2000 cycles. This study offers pathway innovative PMBs designs broad application prospects.

Language: Английский

Citations

7
Mapping current high-entropy materials for water electrolysis: from noble metal to transition metal DOI
J NI,

Yu‐Xin Luan,

Xiaofeng Wang

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(24), P. 14268 - 14301

Published: Jan. 1, 2024

This review gives a global map of HEMs on the basis metal entities from noble metals to cheap transition and provide meaningful guidance researchers for exploration advanced water splitting.

Language: Английский

Citations

6
High entropy alloy: From theoretical evaluation to electrocatalytic activity of hydrogen evolution reaction DOI

Sejin Im,

Dohun Kim, Subramani Surendran

et al.

Current Opinion in Electrochemistry, Journal Year: 2023, Volume and Issue: 39, P. 101293 - 101293

Published: April 7, 2023

Language: Английский

Citations

16
Lithium storage characteristic of nanoporous high-entropy alloy@high-entropy oxide with spin-dependent synergism of cations DOI

Yanhao Wei,

Yuwen Zhao,

Yuefang Chen

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 476, P. 146881 - 146881

Published: Oct. 23, 2023

Language: Английский

Citations

13
Single-atom tailored transition metal oxide enhances d-p hybridization in catalytic conversion for lithium-oxygen batteries DOI

Shuyun Guan,

Xudong Li, Zhao Yang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 488, P. 151064 - 151064

Published: April 6, 2024

Language: Английский

Citations

5
Advancements in Lithium–Oxygen Batteries: A Comprehensive Review of Cathode and Anode Materials DOI Creative Commons

Jing Guo,

Xue Meng, Qing Wang

et al.

Batteries, Journal Year: 2024, Volume and Issue: 10(8), P. 260 - 260

Published: July 23, 2024

As modern society continues to advance, the depletion of non-renewable energy sources (such as natural gas and petroleum) exacerbates environmental issues. The development green, environmentally friendly storage conversion systems is imperative. density commercial lithium-ion batteries approaching its theoretical limit, even so, it struggles meet rapidly growing market demand. Lithium–oxygen have garnered significant attention from researchers due their exceptionally high density. However, challenges such poor electrolyte stability, short cycle life, low discharge capacity, overpotential arise sluggish kinetics oxygen reduction reaction (ORR) during evolution (OER) charging. This article elucidates fundamental principles lithium–oxygen batteries, analyzes primary issues currently faced, summarizes recent research advancements in air cathodes anodes. Additionally, proposes future directions efforts for lithium–air batteries.

Language: Английский

Citations

5
Recent Advances and Perspectives of High-Entropy Alloys as Electrocatalysts for Metal-Air Batteries DOI Creative Commons
Xueping Zhang, Yunjian Liu, Xiaohua Zhao

et al.

Energy & Fuels, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 29, 2024

Language: Английский

Citations

5
Heterostructure Engineering in High‐Entropy Alloy Catalysts DOI Creative Commons
Wenhui Shi, Hanwen Liu, Shijin Liu

et al.

SusMat, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 9, 2024

ABSTRACT Confronting the limitation of traditional homogeneous high‐entropy alloys (HEAs) with randomly distributed elements and active sites, heterostructured HEAs were developed to further amplify catalytic activity stability. This perspective dissects genesis heterogeneity within HEAs, highlighting how their expansive compositional space facilitates customization heterogeneity. By manipulating key factors, such as chemical affinity, standard redox potentials, oxidation potential, researchers are tapping into unprecedented attributes. Strategies like acid leaching, galvanic replacement, additive deposition broadening structural repertoire steering development catalysts. synthesizes current discoveries, introduces provocative concepts, provides a roadmap for engineering in HEA catalysts, particularly harnessing elevate efficiency. The confluence theoretical practical advancements is anticipated lead way evolution endowing them exceptional capabilities.

Language: Английский

Citations

5
Nanoengineering of Cathode Catalysts for Li–O2 Batteries DOI
Yin Zhou, Hong Guo, Wenjun Zhang

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: 18(26), P. 16489 - 16504

Published: June 20, 2024

Lithium-oxygen (Li-O2) batteries have obtained widespread attention as next-generation energy storage systems due to their extremely high density. However, the charge overpotential, attributed insulating property of Li2O2, significantly limits efficiency and triggers solvent degradation. The electrochemical activities oxygen reduction reactions (ORR) evolution (OER) on cathode are crucial for alleviating charging polarizations enhancing lifetime Li-O2 batteries, which also top challenges state-of-art research. In this review, scientific proposed solutions in development catalysts been summarized. recent research advancements nanoengineering comprehensively discussed, perspectives structure optimization presented. Meanwhile, we elucidated structure-performance relationship between electronic state performance at nanoscale level. This review intends provide guidelines design construction advanced batteries.

Language: Английский

Citations

4