Elevating energy storage performance of bismuth antimonate coupled with MXene and graphitic nanofibers in advanced supercapacitors

Journal of Power Sources, Journal Year: 2024, Volume and Issue: 602, P. 234379 - 234379

Published: March 26, 2024

Language: Английский

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N-Doped Carbon Nanotubes Nucleated through Cobalt Nanoparticles as Bifunctional Catalysts for Zinc–Air Batteries

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(7), P. 7865 - 7882

Published: April 1, 2024

We introduce an environmentally sustainable approach to create uniformly nitrogen-incapacitated carbon nanotubes nucleated through cobalt nanoparticles. A unique architecture involving shells on Co nanoparticles exists along with the surface morphology prompted by existence of various nitrogen moieties. The are covered graphitic and confined within a defective porous framework, enhancing area porosity exposing large active centers for catalytic activities. Our uses single-step in situ synthesis process, which yields these exceptionally good bifunctional electrocatalysts oxygen evolution reaction, reduction zinc–air battery applications. These massive pores provide advantage exceptional reaction (ORR) performance. samples Co-embedded optimal N-doping exhibit higher half-wave potential (E1/2) ∼0.882 V vs reversible hydrogen electrode (RHE) compared standard Pt/C (∼0.874 RHE) aqueous 0.1 M KOH solution, at same catalyst-mass loading. For batteries, our samples, as air-reducing catalysts, high open-circuit voltage 1.512 impressive peak power density (150.6 mW cm–2), surpasses commercial + RuO2 catalysts (92.4 well many reported electrocatalysts. Hence, candidates coherent depiction multifunctional, efficient, durable straightforward, inexpensive, scalable fabrication rechargeable batteries.

Language: Английский

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Modulation in work function of CoTe as bifunctional electrocatalyst for rechargeable zinc air battery

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 672, P. 170 - 178

Published: June 1, 2024

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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Strain engineering of CoSAN C catalyst toward enhancing the oxygen reduction reaction activity

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 678, P. 447 - 457

Published: Aug. 25, 2024

Language: Английский

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Zeolitic imidazole framework-derived rich-Zn-Co3O4/N-doped porous carbon with multiple enzyme-like activities for synergistic cancer therapy

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 665, P. 1065 - 1078

Published: March 29, 2024

Language: Английский

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Oxygen doping regulation of Co single atom catalysts for electro-Fenton degradation of tetracycline

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 673, P. 434 - 443

Published: June 6, 2024

Language: Английский

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Biofunctional photoelectrochemical/electrochemical immunosensor based on BiVO4/BiOI-MWCNTs and Au@PdPt for alpha-fetoprotein detection

Bioelectrochemistry, Journal Year: 2024, Volume and Issue: 160, P. 108773 - 108773

Published: July 3, 2024

Language: Английский

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Fabrication of N and S co-doped lignin-based porous carbon aerogels loaded with FeCo alloys and their application to oxygen evolution and reduction reactions in Zn-air batteries

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 273, P. 132961 - 132961

Published: June 6, 2024

Language: Английский

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Nitrogen-Rich Covalent Organic Polymer for Metal-Free Tandem Catalysis and Postmetalation-Actuated High-Performance Water Oxidation

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(32), P. 41721 - 41733

Published: Aug. 1, 2024

Development of high-performing catalytic materials for selective and mild chemical transformations through adhering to the principles sustainability remains a central focus in modern chemistry. Herein, we report template-free assembly thermochemically robust covalent organic polymer (COP: 1) from 2,2′-bipyridine-5,5′-dicarbonyl dichloride 2,4,6-tris(4-aminophenyl)triazine as [2 + 3] structural motifs. The two-dimensional (2D) layered architecture contains carboxamide functionality, delocalized π-cloud, free pyridyl-N site-decked pores. Such trifunctionalization benefits this polymeric network exhibiting tandem alcohol oxidation-Knoevenagel condensation. In contrast common metal-based catalysts, 1 represents one kind metal-free oxidation reaction via extended π-cloud delocalization-mediated radical pathway, comprehensively supported diverse control experiments. addition reasonable recyclability broad substrate scope, condition underscores its applicability benign synthesis valuable product benzylidene malononitrile. Integration 2,2′-bipyridyl units 2D COP favors anchoring non-noble metal ions devise 1-M (M: Ni2+/ Co2+) that demonstrate outstanding electrochemical oxygen evolution alkaline media with high chronoamperometric stability. Electrochemical parameters both 1-Co 1-Ni outperform some benchmark, commercial, well majority contemporary OER catalysts. Specifically, overpotential Tafel slope (280 mV, 58 mV/dec) is better than (360 78 because increased charge accumulation higher number active sites compared former. addition, turnover frequency found be 6 times ranks among top-tier water results provide insights field catalysis promising splitting at interface task-specific functionality fuelling networks.

Language: Английский

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