Trace doping of hexagonal Ni on Ru for Robust Hydrogen Evolution in both acid and alkaline Media DOI
Jianan Zhang, Caihua Zhang, Hong Wang

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 180175 - 180175

Published: April 1, 2025

Language: Английский

High entropy materials: potential catalysts for electrochemical water Splitting DOI
Zhong Wang,

Xinjia Tan,

Ziyu Ye

et al.

Green Chemistry, Journal Year: 2024, Volume and Issue: 26(18), P. 9569 - 9598

Published: Jan. 1, 2024

A comprehensive overview of the use HEM as a catalyst for HER, OER, and water splitting was provided.

Language: Английский

Citations

6
High-entropy nanostructured electrocatalysts for water and carbon dioxide electrolysis DOI

Genxiang Wang,

Junxiang Chen, Zhenhai Wen

et al.

Science China Materials, Journal Year: 2024, Volume and Issue: 67(6), P. 1791 - 1803

Published: May 20, 2024

Language: Английский

Citations

5
Stimulating Electron Delocalization of Lanthanide Elements through High-Entropy Confinement to Promote Electrocatalytic Water Splitting DOI
Yong Jiang, Zhong Liang, Jincheng Liu

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: 18(29), P. 19137 - 19149

Published: July 9, 2024

High-entropy alloys (HEAs) have aroused extensive attention in the field of catalysis. However, due to integration multiple active sites HEA, it exhibits excessive adsorption behavior resulting difficult desorption species from catalyst surfaces, which hinders catalytic efficiency. Therefore, adjusting strength site HEA enhance activity is great importance. By introducing rare-earth (RE) elements into high-entropy alloy, delocalization 4f electrons can be achieved through interaction between multimetal and RE, benefits regulate surface. Herein, RE Ce-modified hexagonal-close-packed PtRuFeCoNiZn-Ce/C HEAs are synthesized showed an excellent electrocatalytic for hydrogen evolution reaction oxygen with ultralow overpotentials 4, 7 156, 132 mV, respectively, reach 10 mA cm-2 0.5 M H2SO4 1.0 KOH solutions, assembled water electrolysis cell only requires a voltage 1.43 V cm-2, much better than performance PtRuFeCoNiZn/C. Combined results situ attenuated total reflection infrared spectroscopy density functional theory (DFT), fundamental reasons improvement come two aspects: (i) local lattice distortion caused by introduction large atomic radius induces orbital electron enhances exchange sites. (ii) The electronegativity difference element forms surface dipole optimizes intermediate site. This study provides insightful idea rational design high-performance HEA- RE-based electrocatalysts.

Language: Английский

Citations

5
Order within disorder: Unveiling the potential of high entropy materials in energy storage and electrocatalysis DOI
Vaibhav C. Lokhande, Dhanaji B. Malavekar, Chihoon Kim

et al.

Energy storage materials, Journal Year: 2024, Volume and Issue: 72, P. 103718 - 103718

Published: Aug. 15, 2024

Language: Английский

Citations

5
In situ capturing site-to-site reactive species in CO2-laser-patterned high-entropy alloy nanoflowers for robust alkaline seawater electrolysis DOI

Chae Eun Park,

Gyoung Hwa Jeong,

V. Maheskumar

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(33), P. 21744 - 21757

Published: Jan. 1, 2024

CO 2 -laser method to synthesize AuRuIrPdPt high-entropy alloys (HEAs) for hydrogen evolution in alkaline and seawater splitting. Optimized HEA-60 exhibits remarkable HER activity stability, surpassing those of commercial Pt/C.

Language: Английский

Citations

4
Carbothermal shock synthesis of FeCoNiPtRu high-entropy alloy for dual-function water splitting in alkaline media DOI

Miaomiao Geng,

Yingjing Zhu,

Jibiao Guan

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1005, P. 176180 - 176180

Published: Aug. 27, 2024

Language: Английский

Citations

4
Rapid synthesis of metastable materials for electrocatalysis DOI
Qiao Chen,

Zichao Xi,

Ziyuan Xu

et al.

Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Metastable materials are considered promising electrocatalysts for clean energy conversions by virtue of their structural flexibility and tunable electronic properties. However, the exploration synthesis metastable via traditional equilibrium methods face challenges because requirements high precise control. In this regard, rapid method (RSM), with efficiency ultra-fast heating/cooling rates, enables production under non-equilibrium conditions. relationship between RSM properties remains largely unexplored. review, we systematically examine unique benefits various techniques mechanisms governing formation materials. Based on these insights, establish a framework, linking electrocatalytic performance Finally, outline future directions emerging field highlight importance high-throughput approaches autonomous screening optimal electrocatalysts. This review aims to provide an in-depth understanding electrocatalysts, opening up new avenues both fundamental research practical applications in electrocatalysis.

Language: Английский

Citations

0
Ultrafast synthesis of uniformly dispersed metal nanoparticles by carbon thermal shock DOI

Yanfeng Wang,

Jinlong Lu, Liao Shen

et al.

Rare Metals, Journal Year: 2025, Volume and Issue: unknown

Published: April 10, 2025

Language: Английский

Citations

0
Deciphering the Synergy of Multiple Vacancies in High‐Entropy Layered Double Hydroxides for Efficient Oxygen Electrocatalysis DOI
Yiyue Zhai,

Xiangrong Ren,

Tao Gan

et al.

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

Published: May 2, 2025

Abstract Layered double hydroxides (LDHs) hold the promise of designing efficient and long‐lived electrocatalysts for alkaline oxygen evolution reaction (OER), yet control their activity durability at ampere‐scale current densities remains a challenge. Here, high‐entropy LDH anode integrating multiple metal vacancies is reported that achieves superior robust OER under industrial conditions. The molar ratio Ni:Cr:Co:Zn:Fe in LDHs engineers electronic structure via cocktail effect, yielding more high‐valent ions promote electrochemical restructuring. Using various operando characterizations, generation γ ‐NiOOH active‐phase on surface identified, triggering oxygen‐vacancy‐site mechanism (OVSM). Importantly, volcano relationship found between intrinsic (overpotential value) local coordination Ni active centers (matching with Δ G *OH ). integration significantly optimizes adsorption‐free energy oxygen‐containing intermediates are anchored sites, boosting OVSM. Accordingly, developed 0.15 Cr Co 0.4 Zn 0.1 Fe 0.2 ‐LDH@NF 1 A·cm −2 1.81 V enables stable operation over 300 h anion exchange membrane water electrolyzer. These findings elucidate synergistic effects enlighten vacancy engineering high‐efficiency catalysts.

Language: Английский

Citations

0
Multi-site synergistic hydrogen evolution reactions on porous homogeneous FeCoNiCu high-entropy alloys fabricated by solution combustion synthesis and hydrogen reduction DOI

Fei Guo,

Yilin Zhang,

Botao Shen

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1002, P. 175356 - 175356

Published: June 26, 2024

Language: Английский

Citations

3