Comparative Analysis of Fiber-Based and Powder-Based Porous Transport Layers in Water Electrolysis for Green Hydrogen DOI Creative Commons
Jiang Liu, Yingying Yang, Felix Kerner

и другие.

ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер unknown

Опубликована: Дек. 2, 2024

In this work, sintered titanium powder porous transport layers (PTLs) and fiber PTLs are systematically investigated compared. The stochastic reconstruction method for 3D PTLs, morphological topological characterization, pore-scale modeling (PSM), Lattice Boltzmann (LBM) employed to comprehensively examine the bulk properties, surface parameters, oxygen removal two types of PTLs. A parametric PTL matrix consisting each with different mean pore sizes porosity, is selected analysis. results illustrate substantial difference properties obtained depending on material structural characteristics. Powder feature more homogeneous (electrical thermal conductivity) in comparison lower porosity size exhibit superior higher electrical conductivity but not favorable efficient removal. order weigh kinetic overpotential, ohmic mass double-layer constructed aim balancing interfacial contact, conductivity, transport. impact thickness ratio elaborated further optimization strategies also provisioned. This work provides insights references a better understanding offers practical guidelines design application commercial large-scale water electrolyzers.

Язык: Английский

Investigating the properties of CaAl2O4/rGO nanohybrid as an effective electrocatalyst for OER DOI
Arooj Fatima, Soumaya Gouadria, Abdelaziz Gassoumi

и другие.

Diamond and Related Materials, Год журнала: 2025, Номер unknown, С. 111944 - 111944

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0
Investigation of the Synergistic Effect of Doping and Composite Formation on Electrochemical OER Performance of g-C3N4 for Sustainable Energy DOI
Reena V. Saini, Umar Farooq, Faisal Imam

и другие.

Energy & Fuels, Год журнала: 2025, Номер unknown

Опубликована: Янв. 6, 2025

For sustainable energy generation, the OER half-cell reaction is an important electrochemical process. In this research article, we have successfully synthesized cost-effective pure g-C3N4, g-C3N4/Cu2O, and g-C3N4/Co-doped Cu2O composite materials using a simple chemical mixing annealing approach to investigate their electrocatalytic performance. All of samples were characterized XRD, FESEM, TEM, BET, XPS, UV–visible DRS techniques. XRD analysis revealed successful synthesis g-C3N4 samples, while FESEM TEM analyses showed deposition sheet-like sample on Co-doped samples. The band gap (g-C3N4/Co doped Cu2O) increased 2.9 eV as compared having 2.7 eV. Electrochemical activity investigations shown enhancement in current density (18 mA/cm2) (current 0.5 mA/cm2). enhanced was attributed low Tafel slope (119 mV/dec), confirming fast kinetics charge transfer ability electrode. Chronoamperometric stability investigation confirms stable for 10 h. Hence, report shows synergistic effect doping formation activity.

Язык: Английский

Процитировано

0
Coherent Design of ZnO0.5S0.5/g-C3N4 Nanoheterostructures: Efficient Photocatalysts for H2 Generation DOI
Neetu Yadav,

Niteen S. Jawale,

Govind Umarji

и другие.

ACS Applied Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 20, 2025

Язык: Английский

Процитировано

0
Preparation of Fe(OH)3/Ni3S2/NiS heterostructure on an iron nickel foam as long-life trifunctional electrocatalysts for seawater and urea splitting DOI
Hongying Li, Xiang Gao, S. Zheng

и другие.

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 179554 - 179554

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Carbon-coated W-doped NiMoN catalysts with enhanced antioxidant properties for robust water electrolysis under fluctuating electricity DOI

Rufei Zhang,

Hui Teng,

Jinyuan Miao

и другие.

Inorganic Chemistry Frontiers, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

This study presents a W-doped NiMoN microcolumn with nitrogen-doped carbon layer as an efficient electrocatalyst. The W doping and enhance its stability antioxidant properties, making it suitable for renewable energy applications.

Язык: Английский

Процитировано

0
Fabrication of samarium oxide embedded carbon nanotubes electrocatalyst for oxygen evolution reaction DOI
Muhammad Ismail, Karam Jabbour,

Sedra Muqadas

и другие.

International Journal of Applied Ceramic Technology, Год журнала: 2025, Номер unknown

Опубликована: Апрель 13, 2025

Abstract The economically unfeasible electrochemical breakdown of water is linked to the production materials with low overpotential using a simple method. study demonstrates fabrication and use samarium oxide (Sm 2 O 3 ) on carbon nanotubes (CNTs) as an effective long‐lasting electrocatalyst for oxygen evolution reaction (OER). X‐ray diffraction analysis confirms Sm embedded CNTs /CNTs) phases 0.052 nm lattice strain, while scanning electron microscopy structural shows ball‐like shape 78 average particle size. synthesized catalyst performs well, attaining current density 10 mA cm −2 having onset potential 1.33 V versus reversible hydrogen electrode (RHE). In contrast CNT, which exhibit higher overpotentials 311 342 mV corresponding Tafel slopes 62 83 dec −1 , respectively, ‒CNT has slope 38 lower 276 mV. With more than 50 demonstrated remarkable stability over 180 h. impedance spectroscopy attributed robust ionic conductivity K⁺ ions, their small hydration sphere, reduced R ct value 3.4 Ω. composite long‐term OER electrocatalysis substitute been through promising results.

Язык: Английский

Процитировано

0
Comparative Analysis of Fiber-Based and Powder-Based Porous Transport Layers in Water Electrolysis for Green Hydrogen DOI Creative Commons
Jiang Liu, Yingying Yang, Felix Kerner

и другие.

ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер unknown

Опубликована: Дек. 2, 2024

In this work, sintered titanium powder porous transport layers (PTLs) and fiber PTLs are systematically investigated compared. The stochastic reconstruction method for 3D PTLs, morphological topological characterization, pore-scale modeling (PSM), Lattice Boltzmann (LBM) employed to comprehensively examine the bulk properties, surface parameters, oxygen removal two types of PTLs. A parametric PTL matrix consisting each with different mean pore sizes porosity, is selected analysis. results illustrate substantial difference properties obtained depending on material structural characteristics. Powder feature more homogeneous (electrical thermal conductivity) in comparison lower porosity size exhibit superior higher electrical conductivity but not favorable efficient removal. order weigh kinetic overpotential, ohmic mass double-layer constructed aim balancing interfacial contact, conductivity, transport. impact thickness ratio elaborated further optimization strategies also provisioned. This work provides insights references a better understanding offers practical guidelines design application commercial large-scale water electrolyzers.

Язык: Английский

Процитировано

1