International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 96, P. 46 - 58
Published: Nov. 23, 2024
Language: Английский
International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 96, P. 46 - 58
Published: Nov. 23, 2024
Language: Английский
ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 11, 2025
Pure-phase carbides suffer from mismatch in H2 adsorption–desorption kinetics. Herein, we report on heterostructured CSNi3C/Fe3C@C/NFs-600 consisting of Co3C and Ni3C nanofibers embedded a graphitic carbon shell synthesized by the electrospinning-magnesiothermic reduction (MTR) process. The Ni3C/Fe3C heterojunction core is encapsulated with porous having large interfacial area, high conductivity, more exposed active sites, which resulted moderate hydrogen adsorption energy (EHads), increased desorption kinetics, intriguingly efficient electron transfer. exhibits low overpotentials (HER/OER) 115/191 mV small Tafel slope 56/53 dec–1 stability over 60 h. activation was calculated for electrolysis using at 20.00 kJ/mol. integrated area/number sites (4.60 × 10–5 AV/5.730 1016) confirmed MOOH* formation. superaerophobicity substantiated fast gas bubble evolution catalyst surface. Using CSNi3C/Fe3C@C/NFs-600, have produced efficiently lesser power consumption 651.3 LH2 kW h–1. bifunctional electrolyzer (1.58 V) released vigorous bubbles compared to benchmark IrO2/Pt/C/NF (1.64 great alkaline solution. synthetic strategy properties demonstrated here provides perceptions into future growth robust catalysts scalable water splitting.
Language: Английский
Citations
1Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 28, 2025
Language: Английский
Citations
1Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: July 18, 2024
Abstract Hydrogen energy is an alternative to carbon‐based fuels due its zero pollution and high density. The electrolysis of water, driven by triboelectric nanogenerators (TENGs), considered as a promising green method for hydrogen production. 2D transition metal carbides/nitrides can be used catalyst carriers, through interface engineering prepare molybdenum disulfide/titanium dioxide (MoS 2 /Ti 3 C ) composites accelerating the kinetics evolution reaction (HER). In this work, multilayered rotating TENG (MR‐TENG) designed convert mechanical into electrical constructing self‐powered production system. MoS are utilized electrodes electrolyzing which enhance catalytic activity in HER. output performance MR‐TENG managed charging when integrating with constant voltage power management module investigated. Besides application demonstrations powering digital thermometer, anemometer, commercial incandescent lamp, power‐managed applied generate electricity water electrolysis, realize rate 7.1 mL min −1 at rotation speed 90 rpm. This work provides effective approach high‐purity based on renewable blue utilization important industrial prospects.
Language: Английский
Citations
6International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 86, P. 719 - 729
Published: Sept. 1, 2024
Language: Английский
Citations
5Heliyon, Journal Year: 2024, Volume and Issue: 10(17), P. e37188 - e37188
Published: Sept. 1, 2024
Language: Английский
Citations
4Journal of Power Sources, Journal Year: 2025, Volume and Issue: 630, P. 236188 - 236188
Published: Jan. 10, 2025
Language: Английский
Citations
0Particle & Particle Systems Characterization, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 20, 2025
Abstract The idea of grid‐scale hydrogen production by water electrolysis has been made possible developing catalyst‐anchored three‐dimensional (3D) foam‐based electrodes. Catalytic performance in and oxygen evolution reactions is improved incorporating catalyst 3D interlinked porous architecture, which enhances electrical conductivity speeds up the discharge gas bubbles. detailed study on role‐play frameworks energy generation explained this article. review also focuses recent development utilizing these substrates field electrochemistry. Furthermore, it imperative to enhance their compatibility with renewable systems high‐temperature for sustainable hydrogen. Therefore, briefly explores innovative design self‐supported framework electrodes using heterostructures doping techniques develop stable, durable, efficient electrocatalysts. These catalysts aim provide near‐zero overpotential, high selectivity, long‐term stability through electrolysis, paving way commercial‐scale green production. can emerge as a key technology
Language: Английский
Citations
0ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: 8(4), P. 1816 - 1828
Published: Jan. 22, 2025
Developing cost-effective, efficient electrocatalysts for clean hydrogen production has been successfully carried out using a heteroatom doping strategy which improved the electrochemical properties of materials. Herein, we report V-doping into NiCo-based precursors to get multicomponent Ni–Co–V oxide catalyst by hydrothermal-calcination process. The Ni, Co, and V components are coordinated strongly in CoNiV2O8 have an integrated morphology nanoflower-like arrays increased its contact with water exposed abundant active sites also owns multi channels enhance carrier transportation. Among catalysts, CoNiV2O8-0.1, CoNiV2O8-0.3, CoNiV2O8-0.5, CoNiV2O8-0.7, bare NiCo2O4V0, CoNiV2O8-0.5 exhibits superior activity demanding small overpotential (OER/HER) 271/117 mV Tafel slope 85/108 dec–1 being stable ∼100 h. activation energy was calculated electrolysis as 42.72 kJ/mol. area 4.60 × 10–5 AV number (5.730 1016) confirmed MOOH* formation. superaerophobicity substantiated fast gas bubble evolution from surface. bifunctional electrolyzer (1.64 V) released vigorous bubbles exhibited robust durability. Using efficiently produced H2 less power consumption 751 LH2 kW h–1 than NiCo2O4V0 (782 h–1). can be employed design multifunctional catalysts enhanced performances.
Language: Английский
Citations
0Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 115621 - 115621
Published: Jan. 1, 2025
Language: Английский
Citations
0Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 178967 - 178967
Published: Feb. 1, 2025
Language: Английский
Citations
0