ArticleChemical science2025
Evolution of amorphous ruthenium nanoclusters into stepped truncated nano-pyramids on graphitic surfaces boosts hydrogen production from ammonia.
Article in Chemical science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Identical-location electron microscopy for the discovery of heterogeneous catalysts' dynamics at the single-particle level.Chemical Society reviews · 2026Review
- Direct Imaging Reveals the Atomic Mechanism of Active-Site Formation in Nanoclusters for Hydrogen Production.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- Metal-Mediated Nitrogen Doping of Carbon Supports Boosts Hydrogen Production from Ammonia.Angewandte Chemie (International ed. in English) · 2026Article
- One-Size-Fits-All: A Universal Binding Site for Single-Layer Metal Cluster Self-Assembly.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Direct Formation of the Atomic Pd-ZnO Interface by Magnetron Sputtering Primed for Methanol Production from COACS catalysis · 2025Article
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Authors and funding
15 authors.
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Abstract
Atomic-scale changes can significantly impact heterogeneous catalysis, yet their atomic mechanisms are challenging to establish using conventional analysis methods. By using identical location scanning transmission electron microscopy (IL-STEM), which provides quantitative information at the single-particle level, we investigated the mechanisms of atomic evolution of Ru nanoclusters during the ammonia decomposition reaction. Nanometre-sized disordered nanoclusters transform into truncated nano-pyramids with stepped edges, leading to increased hydrogen production from ammonia. IL-STEM imaging demonstrated coalescence and Ostwald ripening as mechanisms of nanocluster pyramidalization during the activation stage, with coalescence becoming the primary mechanism under the reaction conditions. Single Ru atoms, a co-product of the catalyst activation, become absorbed by the nano-pyramids, improving their atomic ordering. Ru nano-pyramids with a 2-3 nm
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Registered trials
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