Ionothermal synthesis of mesoporous FeNC electrocatalysts for high-performance anion-exchange membrane fuel cells

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161560 - 161560

Опубликована: Март 1, 2025

Язык: Английский

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ZIF-8 derived iron-, sulphur-, and nitrogen-doped catalysts for anion-exchange membrane fuel cell application

Renewable Energy, Год журнала: 2024, Номер 228, С. 120613 - 120613

Опубликована: Май 5, 2024

Язык: Английский

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Effective MOF-derived electrocatalysts based on nitrogen and different transient metal doped (M: Ni, Co, and Fe) for oxygen reduction reaction toward direct ethanol fuel cell

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 91, С. 1343 - 1354

Опубликована: Окт. 22, 2024

Язык: Английский

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Enhanced learning loop framework accelerates screening of bimetallic catalysts with high oxygen reduction properties in different coordination environments

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 73, С. 305 - 315

Опубликована: Июнь 11, 2024

Язык: Английский

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In situ construction of high-content Fe, N co-doped carbon nanotube networks for efficient oxygen reduction reactions in both alkaline and acidic environments

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 178815 - 178815

Опубликована: Янв. 1, 2025

Язык: Английский

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Star-shaped ZIF-derived carbon-based electrocatalysts with FeNX active sites for enhanced oxygen reduction reaction in high-performance zinc-air batteries

Journal of Electroanalytical Chemistry, Год журнала: 2025, Номер unknown, С. 118991 - 118991

Опубликована: Фев. 1, 2025

Язык: Английский

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Rational engineering of iron phthalocyanine‐derived single atom catalysts for anion exchange membrane fuel cells

Journal of the American Ceramic Society, Год журнала: 2025, Номер unknown

Опубликована: Апрель 6, 2025

Abstract Anion exchange membrane fuel cells (AEMFCs), which operate in alkaline environments, offer advantages such as compatibility with non‐precious metal catalysts Fe‒N‒C, making them an alternative to Pt‐based systems. This study explores development of iron phthalocyanine (FePc)‐derived Fe‒N‒C for AEMFCs, focusing on optimizing oxygen reduction reaction (ORR) activity and durability. The Fe‒N‒C/C were synthesized by pyrolyzing FePc supported carbon (FePc/C) precursors at varying temperatures (500°C–900°C), followed acid washing. High‐angle angular dark field scanning electron microscopy confirmed the atomic dispersion Fe species, while X‐ray photoelectron spectroscopy analysis revealed impact pyrolysis temperature active site configuration. catalyst heat treated 600°C exhibited optimal balance content pyrrolic‐N, resulting superior ORR performance a half‐wave potential ( E 1/2 ) 0.882 V, surpassing commercial Pt/C. Durability tests demonstrated minimal losses (3 mV after 20 000 cycles, emphasizing strong coordination Fe‒N x sites matrix. In single‐cell tests, promising comparable that Pt/C high‐operating voltage region. These findings highlight cost‐effective, durable AEMFCs.

Язык: Английский

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Mesoporous carbon materials doped with Co, Fe and nitrogen as oxygen reduction reaction electrocatalysts for anion-exchange membrane fuel cell

Electrochimica Acta, Год журнала: 2025, Номер unknown, С. 146226 - 146226

Опубликована: Апрель 1, 2025

Язык: Английский

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Molecular assembly synthesis of microporous FeN4-doped carbon plates implanted with Fe3C-doped graphitized carbon nanobelts for efficient oxygen reduction

Applied Surface Science, Год журнала: 2025, Номер unknown, С. 163332 - 163332

Опубликована: Апрель 1, 2025

Язык: Английский

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Enhanced Stability of Quaternary Ammonium Cross‐Linked SEBS Anion Exchange Membranes for Fuel Cells

ChemistrySelect, Год журнала: 2025, Номер 10(17)

Опубликована: Апрель 30, 2025

Abstract A novel alkaline anion exchange membrane was designed using poly(styrene‐b‐ethylene‐co‐butylene‐b‐styrene) (SEBS) as the backbone. Long side chains were grafted onto SEBS via a Friedel‐Crafts reaction, and cross‐linked (SEBS‐C6‐DiPRD) prepared an N‐heterocyclic crosslinker, 1,3‐N‐4‐piperidinyl propane, which features ring strain steric hindrance. The SEBS‐C6‐DiPRD exhibited ion capacity of approximately 1.8 mmol·g −1 , water uptake 85.4%, swelling ratio 24.1% at 80 °C. Thermal degradation began 370 °C, broke 310.6% stress 31.1 MPa. At operating temperature °C (typical for AEMFCs), conductivity reached 75.95 mS·cm . Notably, after 1000 hours testing under simulated AEMFC conditions, membrane's only decreased by 27.6%, demonstrating excellent long‐term stability. Under H 2 air peak power density 18.89 mW·cm −2

Язык: Английский

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