High-performance overall water electrolysis enabled by a one-step fabricated bifunctional Pt/NiFe LDH catalyst on iron nickel foam DOI

Changhui Liang,

Yuxin Zhang, Jun Shen

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 94, P. 749 - 755

Published: Nov. 15, 2024

Language: Английский

Pt quantum dots coupled with NiFe LDH nanosheets for efficient hydrogen evolution reaction at industrial current densities DOI Open Access

Boxue Wang,

Xinru Zhao,

Huachuan Sun

et al.

Microstructures, Journal Year: 2025, Volume and Issue: 5(2)

Published: Feb. 26, 2025

Developing efficient and economical electrocatalysts for hydrogen generation at high current densities is crucial advancing energy sustainability. Herein, a self-supported evolution reaction (HER) electrocatalyst rationally designed prepared on nickel foam through simple two-step chemical etching method, which consists of Pt quantum dots (PtQDs) coupled with nickel-iron layered double hydroxide (NiFe LDH) nanosheets (named PtQDs@NiFe LDH). The characterization results indicate that the introduction PtQDs induces more oxygen vacancies, thereby optimizing electronic structure LDH. This modification enhances conductivity accelerates adsorption/desorption kinetics intermediates in LDH, ultimately resulting exceptional catalytic performance HER large densities. Specifically, LDH delivers 500 2000 mA·cm-2 remarkably low overpotentials 92 252 mV, respectively, markedly outperforming commercial Pt/C (η500 = 190 η2000 436 mV). Moreover, when employing NiFe precursor catalyst as anode cathode, an overall water electrolysis system, only 1.66 V 2.02 are required to achieve mA·cm-2, while maintaining robust stability 200 h. study introduces feasible approach developing industrial-scale

Language: Английский

Citations

1
FeOOH-CoFe layered double hydroxide carbon felt cathode for the electro-Fenton degradation of oxytetracycline in aqueous solution DOI
Ruiqi Xie, Honglei Yang, Xuan Qiu

et al.

Environmental Technology, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 13

Published: Feb. 11, 2025

Heterogeneous electro-Fenton is one of green and promising technologies for removing organic pollutants. In this paper, the FeOOH-CoFe layered double hydroxide carbon felt (LDH/CF) was synthesized by a facile hydrothermal method an efficient degradation oxytetracycline (OTC). The structural morphology elemental composition composite electrode were studied scanning electron microscopy, X-ray diffractometer, photoelectron spectroscopy. Then, electrocatalytic activity analysed through electrochemical characterization such as cyclic voltammetry, linear sweep impedance removal rate 20 mg/L OTC reached about 91.6% at pH = 3, with current density 6.67 mA cm-2 within 60 minute in hydrophobic LDH/CF + PTFE system. Moreover, catalytic exhibited impressive efficiency over wide range. According to quenching experiments, principal reactive oxygen species (·O2-, ·OH, 1O2) involved identified. Based on discovery, possible mechanism also proposed. addition, experiment demonstrated relatively excellent stability electrode, which provided possibility practical application electrode.

Language: Английский

Citations

0
Morphology and composition regulation of Prussian blue analogues to boost electrocatalytic oxygen evolution reaction DOI

Huiyu Sun,

Shudi Yu, Xinyu Gu

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 137356 - 137356

Published: March 1, 2025

Language: Английский

Citations

0
Electronic modulation of amorphous/crystalline NiFe LDH by atomic Pt loading enabling industrial hydrogen production in alkaline water and seawater DOI

Boxue Wang,

Zhongge Luo,

Huachuan Sun

et al.

Journal of Energy Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

Citations

0
High-entropy layered double hydroxide catalyst decorated with Ag nanoparticles for highly efficient water oxidation DOI
Xiangyun Sun, Xin Zhang, Lijun Gao

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 67, P. 111 - 118

Published: April 18, 2024

Language: Английский

Citations

3
0D-3D-1D nanoarchitectured CQDs modified NiFe layered double hydroxides supported with MWCNTs: Enhanced electrocatalytic performance for oxygen evolution reaction DOI

Kannankuzhiyil Surjith,

Dinesh Harsha,

Ramakrishnan Vishnuraj

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 97, P. 798 - 812

Published: Dec. 4, 2024

Language: Английский

Citations

2
High-performance overall water electrolysis enabled by a one-step fabricated bifunctional Pt/NiFe LDH catalyst on iron nickel foam DOI

Changhui Liang,

Yuxin Zhang, Jun Shen

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 94, P. 749 - 755

Published: Nov. 15, 2024

Language: Английский

Citations

1