Constructing Multiphase‐Induced Interfacial Polarization to Surpass Defect‐Induced Polarization in Multielement Sulfide Absorbers

Advanced Science, Год журнала: 2023, Номер 11(6)

Опубликована: Дек. 3, 2023

Abstract The extremely weak heterointerface construction of high‐entropy materials (HEM) hinders them being the electromagnetic wave (EMW) absorbers with ideal properties. To address this issue, study proposes multiphase interfacial engineering and results in a multiphase‐induced polarization loss multielement sulfides. Through selection atoms diverse reaction activities, components CuS (1 0 5), Fe 0.5 Ni S 2 (2 1 0), CuFe 3 0) are constructed to enhance Cu‐based Compared single‐phase Zn‐based sulfides (ZnFeCoNiCr‐S), (CuFeCoNiCr‐S) possess optimized EMW absorption properties (effective bandwidth (EAB) 6.70 GHz at 2.00 mm) due existence specific interface 5)/CuFe proper EM parameters. Furthermore, ZnFeCoNiCr‐S into FeNi 4 (3 1)/(Zn, Fe)S 1) through 400 °C heat‐treated is decomposed. enhanced by strong (EAB 4.83 1.45 mm). This work reveals reasons for limited improve charge accumulation between interfaces, leading

Язык: Английский

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Recent experimental and theoretical advances in the design and science of high-entropy alloy nanoparticles

Nano Energy, Год журнала: 2023, Номер 110, С. 108362 - 108362

Опубликована: Март 20, 2023

Язык: Английский

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Entropy‐Mediated High‐Entropy MXenes Nanotherapeutics: NIR‐II‐Enhanced Intrinsic Oxidase Mimic Activity to Combat Methicillin‐Resistant Staphylococcus Aureus Infection

Advanced Materials, Год журнала: 2023, Номер 35(26)

Опубликована: Март 21, 2023

Bacterial infections, such as bacterial keratitis (BK) and subcutaneous abscess, pose significant challenges to global healthcare. Innovative new antibacterial agents strategies are in demand control infections this era of high drug resistance. Nanotechnology is gradually emerging an economically feasible effective anti-infection treatment. High-entropy MXenes (HE MXenes) used confer desirable properties with exposed active sites high-entropy atomic layers, whose potential application the field biomedicine remains be explored. Herein, monolayer HE fabricated by implementing transition metals entropy low Gibbs free energy fill gap biocatalytic performance non-high-entropy MXenes. endowed extremely strong oxidase mimic activity (Km = 0.227 mm) photothermal conversion efficiency (65.8%) second near-infrared (NIR-II) biowindow increases. Subsequently, realize NIR-II-enhanced intrinsic for killing methicillin-resistant Staphylococcus aureus rapidly removing biofilm. Furthermore, can effectively treat BK abscess infection induced nanotherapeutic minuscule side effects. Overall, demonstrate promising clinical treatment drug-resistant promote healing infected tissues.

Язык: Английский

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Surprising cocktail effect in high entropy alloys on catalyzing magnesium hydride for solid-state hydrogen storage

Chemical Engineering Journal, Год журнала: 2023, Номер 465, С. 142766 - 142766

Опубликована: Апрель 3, 2023

Язык: Английский

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High Entropy Sulfide Nanoparticles as Lithium Polysulfide Redox Catalysts

ACS Nano, Год журнала: 2023, Номер 17(18), С. 18402 - 18410

Опубликована: Сен. 17, 2023

The polysulfide shuttle contributes to capacity loss in lithium-sulfur batteries, which limits their practical utilization. Materials that catalyze the complex redox reactions responsible for are emerging, but foundational knowledge enables catalyst development remains limited with only a small number of catalysts identified. Here, we employ rigorous electrochemical approach show quantitatively lithium reaction is catalyzed by nanoparticles high entropy sulfide material, Zn0.30Co0.31Cu0.19In0.13Ga0.06S. When 2% weight added sulfur cathode composite, and Coulombic efficiency resulting battery improved at both moderate (0.2 C) (1 charge/discharge rates. Surface analysis using X-ray photoelectron spectroscopy provides important insights into how material evolves during cycling process. Zn0.30Co0.31Cu0.19In0.13Ga0.06S nanoparticle outperformed constituent metal sulfides, pointing role high-entropy "cocktail effect" can play advanced electrocatalytic materials performance.

Язык: Английский

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Nanoparticle-mediated cancer cell therapy: basic science to clinical applications

Cancer and Metastasis Reviews, Год журнала: 2023, Номер 42(3), С. 601 - 627

Опубликована: Фев. 24, 2023

Every sixth person in the world dies due to cancer, making it second leading severe cause of death after cardiovascular diseases. According WHO, cancer claimed nearly 10 million deaths 2020. The most common types cancers reported have been breast (lung, colon and rectum, prostate cases), skin (non-melanoma) stomach. In addition surgery, widely used traditional anti-cancer treatment are radio- chemotherapy. However, these do not distinguish between normal malignant cells. Additional methods evolved over time for early detection targeted therapy cancer. each method has its limitations associated costs quite high with adverse effects on quality life patients. Use individual atoms or a cluster (nanoparticles) can paradigm shift by virtue providing point sight sensing diagnosis Nanoparticles (1-100 nm size) 1000 times smaller size than human cell endowed safer relocation capability attack mechanically chemically at precise location which is one avenue that be destroy cells precisely. This review summarises extant understanding work done this area pave way physicians accelerate use hybrid mode treatments leveraging various nanoparticles.

Язык: Английский

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Transition Metal High‐Entropy Nanozyme: Multi‐Site Orbital Coupling Modulated High‐Efficiency Peroxidase Mimics

Advanced Science, Год журнала: 2023, Номер 10(33)

Опубликована: Окт. 23, 2023

Strong substrate affinity and high catalytic efficiency are persistently pursued to generate high-performance nanozymes. Herein, with unique surface atomic configurations distinct d-orbital coupling features of different metal components, a class highly efficient MnFeCoNiCu transition high-entropy nanozymes (HEzymes) is prepared for the first time. Density functional theory calculations demonstrate that improved between metals increases electron density near Fermi energy level (EF ) shifts position overall d-band center respect EF , thereby boosting site-to-site transfer while also enhancing adsorption oxygen intermediates during catalysis. As such, proposed HEzymes exhibit superior affinities efficiencies comparable natural horseradish peroxidase (HRP). Finally, superb (POD)-like activity used in biosensing antibacterial applications. These results suggest have great potential as new-generation

Язык: Английский

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Effect of Cu-doping on tribological properties of laser-cladded FeCoCrNiCux high-entropy alloy coatings

Tribology International, Год журнала: 2023, Номер 188, С. 108868 - 108868

Опубликована: Авг. 10, 2023

Язык: Английский

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Designing strategies and enhancing mechanism for multicomponent high-entropy catalysts

Chemical Science, Год журнала: 2023, Номер 14(4), С. 771 - 790

Опубликована: Янв. 1, 2023

High-entropy materials (HEMs) are new-fashioned functional in the field of catalysis owing to their large designing space, tunable electronic structure, interesting "cocktail effect", and entropy stabilization effect. Many effective strategies have been developed design advanced catalysts for various important reactions. Herein, we firstly review so far optimizing HEM-based underlying mechanism revealed by both theoretical simulations experimental aspects. In light this overview, subsequently present some perspectives about development provide serviceable guidelines and/or inspiration further studying multicomponent catalysts.

Язык: Английский

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Rapid High-Temperature Liquid Shock Synthesis of High-Entropy Alloys for Hydrogen Evolution Reaction

ACS Nano, Год журнала: 2024, Номер 18(4), С. 2948 - 2957

Опубликована: Янв. 16, 2024

High-entropy-alloy nanoparticles (HEA-NPs) show great potential as electrocatalysts for water splitting, fuel cells, CO2 conversion, etc. However, fine-tuning the surface, morphology, structure, and crystal phase of HEA remains a challenge. Here, high-temperature liquid shock (HTLS) technique is applied to produce HEA-NPs, e.g., PtCoNiRuIr with tunable elemental components, ultrafine particle size, controlled phases, lattice strains. HTLS directly Joule heating on mixture metal precursors, capping agents, reducing which feasible controlling morphology structure such atomic arrangement resulting products, thereby facilitating rationally designed nanocatalysts. Impressively, as-obtained HEA-NPs delivered superior activity long-term stability hydrogen evolution reaction (HER), low overpotentials at 10 mA cm–2 1 A only 18 408 mV, respectively, 10000 CV stable cycles in 0.5 M H2SO4. Furthermore, near future, by combining method artificial intelligence (AI) theoretical calculations, it promising provide an advanced platform high-throughput synthesis nanocatalysts optimized performance various energy applications, significance achieving carbon-neutral society effective environmentally friendly system.

Язык: Английский

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