Enhancing Ni/Co Activity by Neighboring Pt Atoms in NiCoP/MXene Electrocatalyst for Alkaline Hydrogen Evolution

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(20)

Published: Feb. 27, 2024

Density functional theory (DFT) calculations demonstrate neighboring Pt atoms can enhance the metal activity of NiCoP for hydrogen evolution reaction (HER). However, it remains a great challenge to link and NiCoP. Herein, we introduced curvature bowl-like structure construct Pt/NiCoP interface by adding minimal 1 ‰-molar-ratio Pt. The as-prepared sample only requires an overpotential 26.5 181.6 mV accordingly achieve current density 10 500 mA cm

Language: Английский

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General Design Concept of High‐Performance Single‐Atom‐Site Catalysts for H₂O₂ Electrosynthesis

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(24)

Published: March 5, 2024

Hydrogen peroxide (H

Language: Английский

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Atomically dispersed multi-site catalysts: bifunctional oxygen electrocatalysts boost flexible zinc–air battery performance

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(14), P. 4847 - 4870

Published: Jan. 1, 2024

Based on the advancements in atomically dispersed multi-site catalysts for FZABs, this review discusses design methodologies to regulate performance of bifunctional oxygen electrocatalysts from electronic and geometric structures.

Language: Английский

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Interfacial Electronic Modulation of Dual-Monodispersed Pt–Ni3S2 as Efficacious Bi-Functional Electrocatalysts for Concurrent H2 Evolution and Methanol Selective Oxidation

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: Jan. 11, 2024

Constructing the efficacious and applicable bi-functional electrocatalysts establishing out mechanisms of organic electro-oxidation by replacing anodic oxygen evolution reaction (OER) are critical to development electrochemically-driven technologies for efficient hydrogen production avoid CO

Language: Английский

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A Sustainable Route to Ruthenium Phosphide (RuP)/Ru Heterostructures with Electron‐Shuttling of Interfacial Ru for Efficient Hydrogen Evolution

Advanced Science, Journal Year: 2024, Volume and Issue: 11(22)

Published: March 28, 2024

Abstract Ruthenium (Ru) is a promising electrocatalyst for the hydrogen evolution reaction (HER), despite suffering from low activity in non‐acidic conditions due to high kinetic energy barrier of H 2 O dissociation. Herein, synthesis carbon nanosheet‐supported RuP/Ru heterostructures (RuP/Ru@CNS) natural polysaccharide reported and demonstrates its behavior as an effective HER conditions. The RuP/Ru@CNS exhibits overpotential (106 mV at 200 mA·cm −2 ) alkaline electrolyte, exceeding most Ru‐based electrocatalysts. electron shuttling between Ru atoms interface results lowered dissociation by electron‐deficient pure phase, well optimized * adsorption electron‐gaining neighboring RuP. A spillover further boosts kinetics. This study sustainable method fabrication efficient electrocatalysts provides more detailed understanding effects catalysis.

Language: Английский

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Destabilization of Single‐Atom Catalysts: Characterization, Mechanisms, and Regeneration Strategies

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 19, 2025

Abstract Numerous in situ characterization studies have focused on revealing the catalytic mechanisms of single‐atom catalysts (SACs), providing a theoretical basis for their rational design. Although research is relatively limited, stability SACs under long‐term operating conditions equally important and prerequisite real‐world energy applications, such as fuel cells water electrolyzers. Recently, there has been rise destabilization regeneration SACs; however, timely comprehensive summaries that provide catalysis community with valuable insights directions are still lacking. This review summarizes recent advances strategies SACs, specifically highlighting various state‐of‐the‐art techniques employed studies. The factors induce identified by discussing failure active sites, coordination environments, supports, reaction scenarios. Next, primary introduced, including redispersion, surface poison desorption, exposure subsurface sites. Additionally, advantages limitations both ex discussed. Finally, future proposed, aimed at constructing structure–stability relationships guiding design more stable SACs.

Language: Английский

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Enhanced Cooperative Generalized Compressive Strain and Electronic Structure Engineering in W‐Ni₃N for Efficient Hydrazine Oxidation Facilitating H₂ Production

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 7, 2025

Abstract As promising bifunctional electrocatalysts, transition metal nitrides are expected to achieve an efficient hydrazine oxidation reaction (HzOR) by fine‐tuning electronic structure via strain engineering, thereby facilitating hydrogen production. However, understanding the correlation between strain‐induced atomic microenvironments and reactivity remains challenging. Herein, a generalized compressive strained W‐Ni 3 N catalyst is developed create surface with enriched states that optimize intermediate binding activate both water 2 H 4 . Multi‐dimensional characterizations reveal nearly linear evolution (HER) activity d‐band center of under state. Theoretically, enhances electron transfer capability at surface, increasing donation into antibonding orbitals adsorbed species, which accelerates HER HzOR. Leveraging modified from W incorporation, catalysts demonstrate outstanding performance, achieving overpotentials 46 mV for 10 mA cm −2 81 HzOR 100 Furthermore, achieves overall splitting low cell voltage 0.185 V 50 , maintaining stability ≈450 h. This work provides new insights dual engineering in design advanced catalysts.

Language: Английский

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Interface-Engineered 3D porous MoS2–ReS2 in-plane heterojunction as efficient hydrogen evolution reaction electrocatalysts

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 661, P. 957 - 965

Published: Feb. 6, 2024

Language: Английский

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Charge-asymmetry Fe1Cu single-atom alloy catalyst for efficient oxygen reduction reaction

Nano Research, Journal Year: 2024, Volume and Issue: 17(6), P. 4702 - 4710

Published: Feb. 23, 2024

Language: Английский

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Deciphering Cationic and Anionic Overoxidation: Key Insights into the Intrinsic Structural Degradation of Catalysts

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(30)

Published: May 14, 2024

Abstract Proton exchange membrane water electrolyzer (PEMWE) technology holds tremendous promise for large‐scale green hydrogen production. However, its widespread application faces significant constraints due to the limited lifespan of oxygen evolution reaction (OER) catalyst in highly acidic and oxidative operating environments. Therefore, a comprehensive understanding catalyst's structural degradation mechanism is imperative rational design high‐performance catalysts. In this review, essence catalysts: irreversible cationic anionic overoxidation initially unveiled. This followed by an in‐depth exploration their intricate relationship with adsorbate (AEM) lattice oxidation (LOM). Then, state‐of‐the‐art characterization techniques analysis are introduced. Subsequently, 4 cutting‐edge antioxidation strategies, including heterostructure engineering, doping strategy, nanostructuring, phase engineering systematically discussed, aiming reveal intrinsic factors effectively inhibiting overoxidation. Finally, remaining challenges prospective insights into catalysts PEMWE delineated. The overarching goal review facilitate fundamental mechanisms provide principal guidelines robust OER

Language: Английский

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