Promoting Robust and Rapid Na‐Ion Storage of Molybdenum‐Based Sulfide via Rational Hetero and Hollow Structure Design

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Abstract Molybdenum disulfide (MoS 2 ), characterized by its two‐dimensional structure and high theoretical specific capacity, is considered a prospective anode of Na‐ion battery. However, the cycling rate capabilities are hampered sluggish charge transfer kinetics poor structural stability. To overcome issues, most efforts have been focused on optimizing MoS . Nevertheless, rationally designing that can present rapid durable storage while ensuring large remains challenges. Herein, /MnS heterostructure featuring sphere‐like hollow morphology designed according to Ostwald ripening process Kirkendall effect. This construction effectively establish an interfacial built‐in electric field activated MnS , which exhibit P‐type N‐type semiconductor characteristics, respectively, thereby promoting electrochemical kinetics. Moreover, excellent stability after repeated (de)sodiation processes remarkably achieved thanks robust design, significantly achieving outstanding tolerance changes. Consequently, delivers capacity (594.8 mAh g −1 at 0.1 A superior performance (up 100 ultrastable capability (30 000 cycles with ≈81.4% retention). The work affords effective optimization tactic develop high‐performance conversion‐type electrodes for alkali‐ion batteries.

Язык: Английский

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Hydrothermally Ce modified HZSM-5 zeolite enhancing its strong acidity and Brønsted/Lewis acid ratio: Stably boosting ethylene/propylene ratio for cracking n-heptane

Fuel, Год журнала: 2024, Номер 368, С. 131632 - 131632

Опубликована: Апрель 3, 2024

Язык: Английский

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Palladium nanoparticles anchored on silanol nests of zeolite showed superior stability for methane combustion

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 356, С. 124221 - 124221

Опубликована: Май 21, 2024

Язык: Английский

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Hydrogenation of the benzene rings in PET degraded chemicals over meso-HZSM-5 supported Ru catalyst

Journal of Hazardous Materials, Год журнала: 2024, Номер 476, С. 134964 - 134964

Опубликована: Июнь 19, 2024

Язык: Английский

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Thermal Effect Management via Entropy Variation Strategy to Improve the Catalyst Stability in Acetylene Hydrogenation

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(45)

Опубликована: Июль 24, 2024

Abstract The dynamic structure evolution of heterogeneous catalysts during reaction has gained great attention recently. However, controllably manipulating process and then feeding back catalyst design to extend the lifetime remains challenging. Herein, we proposed an entropy variation strategy develop a CuZn−Co/HEOs catalyst, in which non‐active Co nano‐islands play crucial role controlling thermal effect via timely capturing utilizing heat generated on adjacent active CuZn alloys, thus solving deactivation problem Cu‐based catalysts. Specifically, sensitive experienced increasing slowly redispersion reaction. Under such dissipation effect, exhibited 95.7 % ethylene selectivity amazing long‐term stability (>530 h) typical exothermic acetylene hydrogenation. Aiming at cultivating it as with promising industrial potential, simple regeneration approach decreasing process.

Язык: Английский

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Chiral Ligand‐Decorated Rhodium Nanoparticles Incorporated in Covalent Organic Framework for Asymmetric Catalysis

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(46)

Опубликована: Авг. 5, 2024

Abstract While metal nanoparticles (NPs) have demonstrated their great potential in catalysis, introducing chiral microenvironment around NPs to achieve efficient conversion and high enantioselectivity remains a long‐standing challenge. In this work, tiny Rh NPs, modified by diene ligands (Lx) bearing diverse functional groups, are incorporated into covalent organic framework (COF) for the asymmetric 1,4‐addition reactions between arylboronic acids nitroalkenes. Though hosted COF inactive, decorating with Lx creates active Rh−Lx interface induces activity. Moreover, modulation altering groups on greatly optimizes (up 95.6 % ee). Mechanistic investigations indicate that formation of hydrogen‐bonding interaction nitroalkenes plays critical roles resulting enantioselectivity. This work highlights significance ligand decoration heterogeneous catalysis.

Язык: Английский

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Stable Cuδ+ species - Catalyzed CO₂ hydrogenation to methanol in silanol nests on Cu/S-1 catalyst

Applied Energy, Год журнала: 2024, Номер 365, С. 123247 - 123247

Опубликована: Апрель 24, 2024

Язык: Английский

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Carbon-free hydrogen production via plasma-catalytic ammonia decomposition over transition metal-based catalysts: In situ probing by DRIFTS and SVUV-PIMS

Chemical Engineering Journal, Год журнала: 2024, Номер 492, С. 152101 - 152101

Опубликована: Май 10, 2024

Язык: Английский

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Oxidation of Ammonia in Water Microdroplets Produces Nitrate and Molecular Hydrogen

Environmental Science & Technology, Год журнала: 2024, Номер 58(36), С. 16196 - 16203

Опубликована: Авг. 23, 2024

Water microdroplets containing dissolved ammonia (30–300 μM) are sprayed through a copper oxide mesh with 200 μm average pore size, resulting in the formation of nitrate (NO3–) and release molecular hydrogen (H2). The products result from redox process that takes place at liquid–solid interface contact electrification, where no external potential is applied. Oxidation initiated by superoxide radical anions (O2–) originate oxygen air surrounding hydroxyl radicals (OH•) originating water–air interface. Two spin traps (TEMPO DMPO) capture these as well NH2OH+•, HNO, NO•, NO2•, NOOH, which detected mass spectrometry. We also directly observed N2O2–• same means. found atom molecule can be set free not only form H• but H2, using residue gas analyzer. oxidation significantly enhanced factor 3 when irradiated ultraviolet light (265 nm, 5 W). 35% 300 μM degraded within 20 μs, conversion rate estimated to 15 nmol·mg–1·h–1.

Язык: Английский

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Advances in copper nanocrystals: Synthesis, anti-oxidation strategies, and multiple applications

Coordination Chemistry Reviews, Год журнала: 2025, Номер 529, С. 216455 - 216455

Опубликована: Янв. 17, 2025

Язык: Английский

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