High‐Entropy Alloy Nanoflower Array Electrodes with Optimizable Reaction Pathways for Low‐Voltage Hydrogen Production at Industrial‐Grade Current Density DOI
Shaobo Li, Yuying Hou,

Guang Feng

et al.

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

Published: Dec. 23, 2024

Abstract Developing sufficiently effective non‐precious metal catalysts for large‐current‐density hydrogen production is highly significant but challenging, especially in low‐voltage systems. Here, we innovatively report high‐entropy alloy nanoflower array (HEANFA) electrodes with optimizable reaction pathways hydrazine oxidation‐assisted at industrial‐grade current densities. Atomic‐resolution structural analyses confirm the single‐phase solid‐solution structure of HEANFA. The HEANFA exhibit top‐level electrocatalytic performance both alkaline evolution (HER) and oxidation (HzOR). Furthermore, splitting (OHzS) system assembled as anode cathode exhibits a record‐breaking production. It achieves ultralow working voltages 0.003, 0.081, 0.260, 0.376, 0.646 V densities 10, 100, 500, 1 000, 2 000 mA cm −2 , respectively, remarkable stability 300 h, significantly outperforming those previously reported OHzS systems other chemicals‐assisted Theoretical calculations reveal that extraordinary attributed to its abundant high‐activity sites HER HzOR. In particular, enables intelligent migration key intermediates during HzOR, thereby optimizing creating sites, ultimately endowing OHzS.

Language: Английский

Routes to Bidirectional Cathodes for Reversible Aprotic Alkali Metal–CO2 Batteries DOI
Yihao Cheng,

Yu‐Xuan Wang,

Biao Chen

et al.

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

Published: Sept. 23, 2024

Aprotic alkali metal-CO

Citations

10
Regulation of Configurational Entropy to Realize Long Cycle Lifespan of High Entropy Alloy Anodes for Potassium Batteries DOI Open Access
R. Y. Zhang,

Huichun Xue,

Daoguang Du

et al.

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

Published: Feb. 7, 2025

Abstract High entropy alloys (HEAs) with entropy‐driven stabilization are attractive in potassium‐ion batteries (PIBs); however, they suffer from phase segregation due to the disparity of versatile components. Confining multifarious metals into same lattice using ligands full‐coordination abilities allows for delicate control at nanoscale level and thus decreases atom diffusion. This chemical synthesis can suppress realize HEAs PIB anodes. Herein, a new MnCoNiCuZn‐based HEA nanoparticle encapsulated within nitrogen‐doped carbon (HEA‐NPs@NC) is fabricated The flexible chlorhexidine selected its long chain, large steric bulkiness, abundant neutral tetradentate donors, coordination ability. high effect “cocktail” HEA‐NPs@NC allow tailoring electrochemical functionalities, including multiple K + transport paths, good conductivity, stability. anode achieves lifespan over 3000 cycles, impressive capacity (513 mAh g −1 ), high‐rate performance (202 5 A ). ex situ characterizations density functional theory calculations elucidated acts as an “atomic composite” forms interstitial metallic solid solutions interaction constituent elements.

Language: Английский

Citations

1
Ligand-regulated oxygen vacancies in Ti-MOFs for visible-light-driven CO2 cycloaddition to cyclic carbonates DOI
Zhen Wu, Qingmei Ge, Hang Cong

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132831 - 132831

Published: April 1, 2025

Language: Английский

Citations

1
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
Unveiling the potential of high-entropy materials toward high-energy metal batteries based on conversion reactions: synthesis, structure, properties, and beyond DOI
Ma Lian,

Weiqian Gong,

Shaofei Guo

et al.

Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104054 - 104054

Published: Jan. 1, 2025

Language: Английский

Citations

0
MOF-based high-entropy-alloy evaporator featuring enhanced interband transitions for efficient solar steam and green electricity generation DOI
Chenyang Dai, Jia‐Han Zhang, Cheng‐Yu He

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163067 - 163067

Published: April 1, 2025

Language: Английский

Citations

0
Probing Interfacial Nanostructures of Electrochemical Energy Storage Systems by In-Situ Transmission Electron Microscopy DOI Creative Commons

Guisheng Liang,

Chang Zhang, Liting Yang

et al.

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: April 30, 2025

Abstract The ability to control the electrode interfaces in an electrochemical energy storage system is essential for achieving desired performance. However, this requires in-depth understanding of detailed interfacial nanostructures under operating conditions. In-situ transmission electron microscopy (TEM) one most powerful techniques revealing mechanisms with high spatiotemporal resolution and sensitivity complex environments. These attributes play a unique role how ion transport inside nanomaterials across dynamic conditions within working batteries. This review aims gain insight into latest developments in-situ TEM imaging probing systems, including atomic-scale structural imaging, strain field holography, integrated differential phase contrast imaging. Significant examples will be described highlight fundamental nanoscale from employing state-of-the-art visualize evolution, ionic valence state changes, mapping, dynamics. concludes by providing perspective discussion future directions development application systems.

Language: Английский

Citations

0
High‐Entropy Alloy Nanoflower Array Electrodes with Optimizable Reaction Pathways for Low‐Voltage Hydrogen Production at Industrial‐Grade Current Density DOI
Shaobo Li, Yuying Hou,

Guang Feng

et al.

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

Published: Dec. 23, 2024

Abstract Developing sufficiently effective non‐precious metal catalysts for large‐current‐density hydrogen production is highly significant but challenging, especially in low‐voltage systems. Here, we innovatively report high‐entropy alloy nanoflower array (HEANFA) electrodes with optimizable reaction pathways hydrazine oxidation‐assisted at industrial‐grade current densities. Atomic‐resolution structural analyses confirm the single‐phase solid‐solution structure of HEANFA. The HEANFA exhibit top‐level electrocatalytic performance both alkaline evolution (HER) and oxidation (HzOR). Furthermore, splitting (OHzS) system assembled as anode cathode exhibits a record‐breaking production. It achieves ultralow working voltages 0.003, 0.081, 0.260, 0.376, 0.646 V densities 10, 100, 500, 1 000, 2 000 mA cm −2 , respectively, remarkable stability 300 h, significantly outperforming those previously reported OHzS systems other chemicals‐assisted Theoretical calculations reveal that extraordinary attributed to its abundant high‐activity sites HER HzOR. In particular, enables intelligent migration key intermediates during HzOR, thereby optimizing creating sites, ultimately endowing OHzS.

Language: Английский

Citations

2