Polyoxometalate/MOF-derived MoSe2/(Ni, Co)Se2 for battery-type electrodes of high-performance supercapacitors

Journal of Alloys and Compounds, Год журнала: 2024, Номер 1000, С. 175107 - 175107

Опубликована: Июнь 6, 2024

Язык: Английский

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Homodispersed MoS2/Co9S8 heterostructure nanoparticles confined in rGO aerogels via Kirkendall effect for efficient electromagnetic interference shielding

Journal of Alloys and Compounds, Год журнала: 2024, Номер 989, С. 174310 - 174310

Опубликована: Март 29, 2024

Язык: Английский

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Preparation and electrochemical properties of carbon cloth supported (Ni,Co)Se₂/CNT composite materials

New Journal of Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

A network interconnected structure of (Ni,Co)Se 2 /CNT-1 was successfully prepared on CC using hydrothermal method and selenization method. The specific capacitance reached 1587.8 F g −1 at 1 .

Язык: Английский

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Hollow Mo Doped CoS₂ Polyhedron Derived from Polyoxometalate‐based Metal‐Organic Frameworks for Efficient Overall Water Splitting

ChemistrySelect, Год журнала: 2025, Номер 10(4)

Опубликована: Янв. 1, 2025

Abstract Nowadays, the sluggish hydrogen evolution reaction (HER) and oxygen (OER) kinetics are key obstacles limiting commercial application of water splitting. In this study, a size‐matching strategy is proposed to construct molybdenum‐doped CoS 2 polyhedra (Mo‐CoS ) by encapsulating polyoxometalate (POM, H 3 PMo 12 O 40 guests into mesoporous zeolite imidazolium framework‐67 (ZIF‐67), with thioacetamide (TAA) serving as gentle sulfur source. The catalyst exhibits pronounced hollow structure due synergistic etching effects POM TAA, which can increase number active sites. Additionally, incorporation Mo optimizes electronic structure, thereby improving both HER OER performance. alkaline electrolytes, Mo‐CoS delivers an overpotential 330 mV 269 for HER, respectively, produce current density 100 mA cm −2 . Moreover, demonstrates exceptional performance in overall splitting, achieving cell voltage 1.55 V at 10 , along outstanding long‐term stability. This study provides promising avenue structural component optimization cobalt sulfide, could significantly improve efficiency production.

Язык: Английский

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High-performance capacitors based on in situ Ni-doped CoMoO4@CNTs composites

Journal of Electroanalytical Chemistry, Год журнала: 2025, Номер unknown, С. 119082 - 119082

Опубликована: Март 1, 2025

Язык: Английский

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Formic acid-assisted electrochemical deposition of CoMo-P on ZIF-67 derived NiCo LDH towards enhanced overall water splitting performance

Surfaces and Interfaces, Год журнала: 2025, Номер unknown, С. 106329 - 106329

Опубликована: Март 1, 2025

Язык: Английский

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Inner–Outer Surface Anchoring of Ultrafine Bi(Tri)-Metallic Molybdates on N-, B-, and F-Doped Hollow-Core Carbon Nanofibers: Cost-Effective Nanocomposites with Low-Metal Loading for Energy and Environmental Applications

Advanced Fiber Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 2, 2025

Abstract The simple and environmentally friendly fabrication of cost-effective nanocomposites with low-metal usage is a promising approach for high-performance supercapacitors. Most developed rely on expensive carbon materials, such as graphene nanotubes, high metal loading (> 50 wt%), complex preparation protocols. In this study, we present straightforward method fabricating noble-metal-free bimetallic trimetallic molybdates (FeMo NiCoMo) anchored heteroatom-doped hollow-core nanofibers (HCNFs). Heteroatoms B, F, N were successfully doped into the HCNFs. homogenous anchoring FeMo- or NiCoMo-oxide nanoparticles both inner outer surfaces HCNFs was confirmed—this is, to best our knowledge, first report structure. three-electrode system, NiCoMo–HCNFs demonstrated an excellent specific capacitance 1419.2 F/g retention 86.0% after 10,000 cycles. fabricated device exhibited 225.7 F/g, power density 45.5 W/kg, energy 10,089.3 Wh/kg, 86.1% For reduction 4-nitrophenol, FeMo–HCNFs achieved k app values 30.14 87.71 × 10 −2 s −1 , respectively. Due their preparation, cost-effectiveness, activity, robustness, are candidates storage environmental catalysis applications. Graphical Bimetallic Trimetallic supported fibers

Язык: Английский

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In situ Ni-doped CoMoO4 nanomaterials on acid-pretreated nickel foam with high capacitive properties

Journal of Physics and Chemistry of Solids, Год журнала: 2025, Номер unknown, С. 112794 - 112794

Опубликована: Апрель 1, 2025

Язык: Английский

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Zeolitic imidazolate framework-67-derived chalcogenides as electrode materials for supercapacitors

Dalton Transactions, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Various ZIF-67-derived chalcogenides and their composites are used in supercapacitors.

Язык: Английский

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Recent advances in heteroatom doped transition metal sulfides for high-performance supercapacitors

Journal of Energy Storage, Год журнала: 2024, Номер 104, С. 114562 - 114562

Опубликована: Ноя. 13, 2024

Язык: Английский

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