Novel nanoporous amorphous/nanocrystalline composite structured RuNiFeCo multicomponent alloys with exceptional catalytic activity for ammonia borane hydrolytic dehydrogenation

Materials Today Nano, Journal Year: 2024, Volume and Issue: 26, P. 100485 - 100485

Published: May 20, 2024

Language: Английский

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Cobalt Phosphide‐Supported Single‐Atom Pt Catalysts for Efficient and Stable Hydrogen Generation from Ammonia Borane Hydrolysis

Small Methods, Journal Year: 2024, Volume and Issue: unknown

Published: May 27, 2024

Abstract Ammonia borane (AB) has emerged as a promising chemical hydrogen storage material. The development of efficient, stable, and cost‐effective catalysts for AB hydrolysis is the key to achieving energy economy. Here, cobalt phosphide (CoP) used anchor single‐atom Pt species, acting robust generation from hydrolysis. Thanks high utilization synergy between CoP optimized Pt/CoP‐100 catalyst exhibits an unprecedented rate, giving record turnover frequency (TOF) value 39911 number 2926829 at room temperature. These metrics surpass those all existing state‐of‐the‐art supported metal by order magnitude. Density functional theory calculations reveal that integration onto substrate significantly enhances adsorption dissociation processes both water molecules, thereby facilitating production Interestingly, TOF further elevated 54878 under UV–vis light irradiation, which can be attributed efficient separation mobility photogenerated carriers Pt‐CoP interface. findings underscore effectiveness support metals in production, offering insights designing high‐performance storage.

Language: Английский

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Hexagonal boron nitride on metal surfaces as a support and template

Surface Science Reports, Journal Year: 2024, Volume and Issue: 79(3), P. 100637 - 100637

Published: June 8, 2024

The synthesis and characterization of two dimensional materials are in the focus nanomaterial surface science, heterogeneous catalytic nanoelectronic research laying basis for various technological applications. Hexagonal boron nitride (h-BN) is an important member 3D reduced materials. Atomically clean sp2-hybridized 2D nano-layers can be grown on metal supports by different chemical physical vapor deposition techniques. In case a significant lattice mismatch strong interaction at h-BN/metal interface, periodically undulating monolayer - so-called "moirè structure" formed. present review, we address some characteristics h-BN prepared several surfaces, its application as template individual atoms, clusters molecules. Moreover, experimental findings collected about features applications nanosheets supporting We highlight results recent science studies, which emphasize unique role including nanomeshes characteristic adsorption properties, stability activity. few layer defective involving their also subject review. comprehensive overview electronic vibrational states nanoparticles (covered adsorbates, well) monitored spectroscopy tools, e.g. XPS, ARPES, UPS, LEIS, AES, STS HREELS. elaborate structural morphological information nanoobjects obtained scanning probe microscopy (SPM). It highlighted that density functional theory (DFT) considered very complementary technique contributing to better understanding results. Beside updated recollection key findings, outline future directions heterostructures h-BN-based systems.

Language: Английский

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Oxygen vacancy promoting artificial atom (RuPd) by d-orbital coupling for efficient water dissociation

Nano Research, Journal Year: 2024, Volume and Issue: 17(8), P. 7045 - 7052

Published: June 24, 2024

Language: Английский

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Single-Atom Catalysts Toward Electrochemical Water Treatment

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 363, P. 124783 - 124783

Published: Nov. 5, 2024

Language: Английский

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