Synergistic CoS2-Sn2S3 heterojunction in N-doped carbon for enhanced and selective heavy metal removal via capacitive deionization

Desalination, Год журнала: 2025, Номер unknown, С. 118823 - 118823

Опубликована: Март 1, 2025

Язык: Английский

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Revealing the effect of hybrid oxide coatings on copper catalysts for CO2 electroreduction

Rare Metals, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Язык: Английский

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Hollow sphere h-Ni-NC@CuO tandem catalysts through control over morphology, Cu+/Cu0 interface and intermediate retention to facilitate CO2RR to ethylene

Journal of Alloys and Compounds, Год журнала: 2025, Номер 1026, С. 180410 - 180410

Опубликована: Апрель 15, 2025

Язык: Английский

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Impact of Confined and Exposed Nickel Nanoparticles on Electronic Modulation of Atomically Dispersed Nickel for Electrocatalytic Reduction CO₂ to CO with an Ultra‐Wide Voltage Range

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 27, 2025

Abstract The practical development of electrocatalytic CO 2 reduction requires high‐performance electrocatalysts that can operate over a wide voltage range to accommodate the volatility renewable electricity. Herein, impact confined and exposed nanoparticles on ‐to‐CO are explored. A hybrid electrocatalyst consisting Ni single‐atoms (SAs) supported carbon, modified with two types (NPs): (CP) (EP) is designed. Systematic investigations reveal CP significantly enhances activity selectivity SAs catalysts, while EP exacerbates competitive hydrogen evolution, especially at more negative potential. Density functional theory calculations indicate introducing effectively modulates electronic structure active sites, diminishing lowering free energy *COOH formation, stabilizing intermediate, enhancing reaction kinetics formation. In an alkaline flow cell, Faradaic efficiency for (FE ) exceeds 93% across ultra‐wide 1200 mV (from −0.37 −1.57 V vs RHE), achieving maximum FE ≈100% from −0.57 −0.97 V. mixed electrolyte (0.1 m KOH + 0.9 KCl) prolongs stability catalyst.

Язык: Английский

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A Universal Approach to Construct Surface-Enriched Metal-Nitrogen Sites in Carbon Matrix toward Oxygen Reduction

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Май 5, 2025

Metal-nitrogen (M-Nx) moieties are recognized as the most active sites in metal-nitrogen codoped carbon catalysts (M-N/C) toward oxygen reduction reaction (ORR). Controllable construction of M-Nx and effective exposure them at catalyst-electrolyte interfaces critical for high-efficiency electrocatalysis reduction. Herein, a universal synthesis strategy is developed to construct surface-enriched highly dispersed various metal centers (including Co, Fe, Cu, Ni, Mn, Bi) M-N/C by utilizing prefabricated pyridine-nitrogen-rich matrix anchor ions from corresponding chloride vapors. All as-synthesized demonstrate outstanding ORR activities excellent long-term stability, among which optimized Co-N/C exhibits an exceptional half-wave potential (E1/2) 0.900 V vs RHE (VRHE) only 6% current loss after testing 0.60 VRHE 16 h 0.1 mol L-1 KOH solution. This work opens new possibilities fabrication high-performance with metallic or even multiple kinds different applications.

Язык: Английский

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Enhanced photocatalytic activity of SnO₂@g-C₃N₄ heterojunctions for methylene blue and bisphenol-A degradation: effect of interface structure and porous nature

RSC Advances, Год журнала: 2025, Номер 15(20), С. 15651 - 15669

Опубликована: Янв. 1, 2025

In this study, SnO 2 @graphitic carbon nitride (g-C 3 N 4 ) heterojunctions were synthesized using a hydrothermal method followed by sonication.

Язык: Английский

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