In-situ construction of P-doped Ni0.5Cu0.5Co2O4 with 1D/2D hierarchical nanostructure for high-performance hybrid supercapacitors

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 493, P. 152609 - 152609

Published: May 27, 2024

Language: Английский

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Interface Engineering with the Coupling of a 3D Porous Structure Enables MoP₂–NiCoP Heterostructure Nanosheets for Enhanced Alkaline Hydrogen Evolution Reaction

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(3), P. 1682 - 1691

Published: Jan. 8, 2024

One of the crucial parts electrochemically focused energy conversion and storage system is hydrogen evolution reaction. The further exploration electrocatalysts made nonprecious metals could help to bring technology closer industrialization. Here, we present an effective reaction (HER) electrocatalyst that employs hydrothermal phosphorization steps create three-dimensional (3D) porous MoP2–NiCoP heterostructure nanosheets on nickel foam (MoP2–NiCoP/NF). H2O-dissociation H-adsorption were effectively achieved due distinctive interface engineering between NiCoP MoP2, which functions as a channel for immediate electron transfer. Compared single-component MoP2 NiCoP, synergistic interaction heterogeneous components coupling 3D structure enables MoP2–NiCoP/NF exhibit satisfactory catalytic activity with ultralow overpotential 50 mV at 10 mA cm–2, close commercial Pt/C catalyst in alkaline media. More importantly, it exhibits good stability, ability be electrolyzed 1.0 M KOH electrolyte 24 h without significant change overpotential. This study offers directions design low-cost, high-activity, transition metal phosphides (TMPs)-based HER alternatives future practical applications.

Language: Английский

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Construction of unique NiCoP/FeNiCoP hollow heterostructured ellipsoids with modulated electronic structure for enhanced overall water splitting

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 666, P. 403 - 415

Published: March 30, 2024

Transition metal phosphides have been demonstrated to be promising non-noble catalysts for water splitting, yet their electrocatalytic performance is impeded by unfavorable free energies of adsorbed intermediates. The achievement nanoscale modulation in morphology and electronic states imperative enhancing intrinsic activity. Herein, we propose a strategy expedite the splitting process over NiCoP/FeNiCoP hollow ellipsoids modulating structure d-band center. These unique phosphorus (P) vacancies-rich are synthesized through an ion-exchange reaction between uniform NiCo-nanoprisms K

Language: Английский

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Construction of electron-interactive CoMoO4 @ CoP core–shell structure on boron-doped graphene aerogel as strongly interface coupled hybrid electrodes for high flexible supercapacitor

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 496, P. 154123 - 154123

Published: July 26, 2024

Language: Английский

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Medium-Entropy heterostructure of crystalline NiCoFeP @ amorphous NiCoFe-LDH for Industrial-Current density and ultrastable overall water splitting

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159520 - 159520

Published: Jan. 1, 2025

Language: Английский

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Exploiting the energy storage potential of hierarchical ZnCoTe hollow nanoflowers

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 114, P. 115801 - 115801

Published: Feb. 15, 2025

Language: Английский

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Metal Organic Framework Derived Heterogeneous CoNiP@CoNiSe for High Performance Asymmetric Supercapacitor

Industrial & Engineering Chemistry Research, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 25, 2025

Language: Английский

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Theoretical and experimental investigation on electrostatic field dynamics of Co3O4@NiPx electrocatalyst with core shell structure in overall water splitting reactions

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 485, P. 149903 - 149903

Published: Feb. 21, 2024

Language: Английский

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Nanostructured Cu₃P–CoP Cathodes with 3D Urchin Morphology for Hybrid Supercapacitors

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(12), P. 14297 - 14309

Published: June 13, 2024

A highly functioning copper cobalt-based ternary phosphide (CCP) cathode was engineered from a cobalt carbonate hydroxide (CCH) material via gas–solid thermal route, resulting in 3D spatial morphology with hierarchical architecture and porosity. Preliminary electrochemical testing revealed the superiority of CCP specific capacity value 2392 C g–1 at 10 retention 94.4% over 5000 cycles 40 g–1. The morphological advantages its architecture, porous network, numerous nanospikes sharp edges surface defects offer tremendous active sites ion transport channels for better charge storage performance. CCP//activated carbon electrode (ACE) hybrid supercapacitor (HSC) device delivered 284.5 92.3% 000 high current density 30 Furthermore, fabricated provided energy power values 129.15 Wh kg–1 66.4 kW kg–1, respectively, powered red LED 1 min. Thus, this work efficiently provides knowledge on development Cu3P–CoP optimizing features synthetic routes, which leads to achieving superior materials supercapacitors era.

Language: Английский

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Simultaneously Improving Energy Storage and Oxygen Evolution Reaction by Causing Regional Defects in MOF-on-MOF Derived Hollow Se-Doped CoP-Fe₂P Heterojunctions

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(32), P. 42230 - 42241

Published: July 31, 2024

Doping heteroatoms into metal phosphides to modify their electronic structure is an effective method, but the incomplete exposure of active sites its inherent drawback. In this experiment, both Se doping and P vacancies are simultaneously introduced CoP-Fe2P (named CoFe-P-Se) enhance internal reactivity. Benefiting from unique hollow porous derived MOF-on-MOF template, as well enhanced intrinsic activity achieved by defects doping, CoFe-P-Se exhibits a high specific capacitance 8.41 F cm–2 at current density 2 mA when used supercapacitor electrode. When assembled hybrid with activated carbon, energy reaches 0.488 mWh power 1.534 mW cm–2, capacity retention after 5000 charge–discharge cycles 90.65%. As oxygen evolution reaction (OER) electrode, electrode shows low overpotential only 230 mV 10 278 100 cm–2. Additionally, it excellent stability for over 50 h The designed element vacancy engineering in work will provide insight constructing high-performance electrodes.

Language: Английский

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