Articles with "atoms clusters" as a keyword



Ultrahigh Mass Activity Pt Entities Consisting of Pt Single atoms, Clusters, and Nanoparticles for Improved Hydrogen Evolution Reaction.

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Published in 2023 at "Small"

DOI: 10.1002/smll.202205885

Abstract: Platinum is one of the best-performing catalysts for the hydrogen evolution reaction (HER). However, high cost and scarcity severely hinder the large-scale application of Pt electrocatalysts. Constructing highly dispersed ultrasmall Platinum entities is thereby a… read more here.

Keywords: clusters nanoparticles; single atoms; catalyst; atoms clusters ... See more keywords

The identification of Вi atoms and clusters in Mg Al silicate glasses

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Published in 2019 at "Journal of Non-Crystalline Solids"

DOI: 10.1016/j.jnoncrysol.2018.12.028

Abstract: Abstract Bi-activated glasses from the MgO-Al2O3-SiO2 system with IR luminescence in the region of 1050–1600 nm have been studied by the high-angle annular dark-field scanning transmission electron microscopy. It was found that individual bismuth ions are… read more here.

Keywords: bismuth; identification atoms; microscopy; silicate glasses ... See more keywords

Nanotubular TiOxNy-Supported Ir Single Atoms and Clusters as Thin-Film Electrocatalysts for Oxygen Evolution in Acid Media

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Published in 2023 at "Chemistry of Materials"

DOI: 10.1021/acs.chemmater.3c00125

Abstract: A versatile approach to the production of cluster- and single atom-based thin-film electrode composites is presented. The developed TiOxNy–Ir catalyst was prepared from sputtered Ti–Ir alloy constituted of 0.8 ± 0.2 at % Ir in… read more here.

Keywords: oxygen evolution; single atoms; atoms clusters; film ... See more keywords

Integration of Co Single Atoms and Ni Clusters on Defect-Rich ZrO2 for Strong Photothermal Coupling Boosts Photocatalytic CO2 Reduction.

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Published in 2024 at "ACS nano"

DOI: 10.1021/acsnano.4c01637

Abstract: We report a solvothermal method for the synthesis of an oxygen vacancy-enriched ZrO2 photocatalyst with Co single atoms and Ni clusters immobilized on the surface. This catalyst presents superior performance for the reduction of CO2… read more here.

Keywords: single atoms; photothermal coupling; atoms clusters; integration single ... See more keywords

Direct Observation of Yolk-Shell Transforming to Gold Single Atoms and Clusters with Superior Oxygen Evolution Reaction Efficiency.

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Published in 2019 at "ACS nano"

DOI: 10.1021/acsnano.9b02135

Abstract: Noble metal particles and atoms tend not to react with other media even at elevated temperatures due to their inert nature. Herein, we report surprising findings of Au diffusion and dissolution in a Ni2P matrix,… read more here.

Keywords: oxygen evolution; shell; evolution reaction; efficiency ... See more keywords

Understanding the role of supported Rh atoms and clusters during hydroformylation and CO hydrogenation reactions with in situ/operando XAS and DRIFT spectroscopy

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Published in 2024 at "Chemical Science"

DOI: 10.1039/d4sc02907k

Abstract: Supported Rh single-atoms and clusters on CeO2, MgO, and ZrO2 were investigated as catalysts for hydroformylation of ethylene to propionaldehyde and CO hydrogenation to methanol/ethanol with in situ/operando diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS)… read more here.

Keywords: spectroscopy; situ operando; xas; hydrogenation ... See more keywords

Two-dimensional dual-mesoporous catalytic networks with coexisting Pt single atoms and clusters for boosted oxygen reduction reaction.

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Published in 2025 at "Chemical communications"

DOI: 10.1039/d5cc04617c

Abstract: Single atom-cluster coexisting catalysts offer high oxygen reduction reaction (ORR) potential but often suffer from synthesis complexity and poor scalability. Here, we report a green and scalable molten-salt templating strategy using NaCl to construct a… read more here.

Keywords: single atoms; reduction reaction; atoms clusters; dual mesoporous ... See more keywords