Lignin-derived iron carbide/Mn, N, S-codoped carbon nanotubes as a high-efficiency catalyst for synergistically enhanced oxygen reduction reaction and rechargeable zinc-air battery

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 647, P. 1 - 11

Published: May 21, 2023

Language: Английский

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Electron Transfer from Encapsulated Fe₃C to the Outermost N‐Doped Carbon Layer for Superior ORR

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(40)

Published: May 7, 2024

Abstract Encapsulating Fe 3 C in carbon layers has emerged as an innovative strategy for protecting while preserving its high oxygen reduction activity. However, fundamental questions persist regarding the active sites of encapsulated due to restricted accessibility molecules metal sites. Herein, intrinsic electron transfer mechanisms nanoparticles N‐doped materials are unveiled electrocatalysis. The precision‐structured 1 N material is used synthesize carbons with C, significantly enhancing catalytic activity (E ONSET = 0.98 V) and achieving near‐100% operational stability. In anion‐exchange membrane fuel cells, excellent peak power density 830 mW cm −2 reached at 60 °C. experimental computational results revealed that presence cores dynamically triggers outermost layer. This phenomenon amplifies reaction performance sites, contributing observed enhancement.

Language: Английский

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Intercalating Organic Hybrid Cadmium Antimony Sulfide Nanoparticles into Graphene Oxide Nanosheets for Electrochemical Lithium Storage

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(27), P. 35024 - 35032

Published: June 27, 2024

Inorganic metal sulfides have received extensive investigation as anode materials in lithium-ion batteries (LIBs). However, applications of crystalline organic hybrid LIBs are quite rare. In addition, combining the nanoparticles with conductive is expected to enhance electrochemical lithium storage performance. Nevertheless, due difficulty harvesting sulfides, this approach has never been tried date. Herein, a cadmium antimony sulfide (1,4-DABH2)Cd2Sb2S6 (DCAS) were prepared by top-down method, including procedures solvothermal synthesis, ball milling, and ultrasonic pulverization. Thereafter, DCAS sizes ∼500 nm intercalated into graphene oxide nanosheets through freeze-drying treatment DCAS@GO composite was obtained. Compared reported Sb2S3- CdS-based composites, exhibited superior Li+ ion performance, high capacity 1075.6 mAh g–1 at 100 mA exceptional rate tolerances (646.8 5000 g–1). can provide 705.6 after 500 cycles 1000 g–1. Our research offers viable for preparing proves that intercalating GO efficiently boost

Language: Английский

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Metal‐Organic Framework Materials as Bifunctional Electrocatalyst for Rechargeable Zn‐Air Batteries

Batteries & Supercaps, Journal Year: 2024, Volume and Issue: 7(11)

Published: Aug. 15, 2024

Abstract Rechargeable Zn‐air batteries offer the advantages of environmental friendliness, safety, low prices and high energy density, are highly valued. However, major challenge faced by rechargeable nowadays is efficiency due to slow reaction kinetics electrocatalyst at air cathode. Bifunctional catalysts key development improving their overall performance long‐term cycling stability. Metal‐organic framework (MOF) materials have shown great benefits as oxygen electrocatalysts in promoting reduction (ORR) evolution (OER). This paper reviews recent advances three kinds MOF bifunctional for batteries. Additionally, this also discusses synthetic design strategy composite derivatives, concludes suggesting application field

Language: Английский

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Densely accessible Fe/Co–N_x dual-atom site coupled core–shell Co₃Fe₇@C as an efficient bifunctional oxygen electrocatalyst for rechargeable zinc–air batteries

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(27), P. 16863 - 16876

Published: Jan. 1, 2024

The symmetric electronic structure of an Fe single-atom site catalyst was effectively regulated by incorporating Co–N x sites and core–shell Co 3 7 @C nanoparticles, resulting in high performance towards the ORR Zn–air batteries.

Language: Английский

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Facilely tuning the coating layers of Fe nanoparticles from iron carbide to iron nitride for different performance in Fenton-like reactions

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 672, P. 688 - 699

Published: June 6, 2024

Language: Английский

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Fe/Fe3C anchored on activated N-doped porous carbon for sensitive and selective determination of levodopa

Microchemical Journal, Journal Year: 2025, Volume and Issue: unknown, P. 113504 - 113504

Published: March 1, 2025

Language: Английский

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The synthesis of electrospun N-doped carbon nanofibers with embedded Fe2N/Fe3C species for catalyzing the O2 and CO2 reduction reactions

New Carbon Materials, Journal Year: 2025, Volume and Issue: 40(2), P. 333 - 344

Published: April 1, 2025

Language: Английский

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Nano-prismatic Fe3C infused hydrochar-based cathode catalyst and self-supported 2D-cathode for efficient remediation of nitrophenol via three-electron Fenton system

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163877 - 163877

Published: May 1, 2025

Language: Английский

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Design of nanosheet/nanotube composites of Fe, N-doped carbon for enhanced oxygen reduction in zinc-air batteries

Electrochimica Acta, Journal Year: 2023, Volume and Issue: 465, P. 142986 - 142986

Published: Aug. 5, 2023

Language: Английский

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