Atomic-resolution imaging of gold species at organic liquid-solid interfaces.
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| Title: | Atomic-resolution imaging of gold species at organic liquid-solid interfaces. |
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| Authors: | Sullivan-Allsop, Sam (AUTHOR), Clark, Nick (AUTHOR), Wang, Wendong (AUTHOR), Cai, Rongsheng (AUTHOR), Thornley, William (AUTHOR), Hopkinson, David G. (AUTHOR), McHugh, James G. (AUTHOR), Davies, Ben (AUTHOR), Pattisson, Samuel (AUTHOR), Dummer, Nicholas F. (AUTHOR), Zhang, Rui (AUTHOR), Lindley, Matthew (AUTHOR), Tainton, Gareth (AUTHOR), Harrison, Jack (AUTHOR), De Latour, Hugo (AUTHOR), Parker, Joseph (AUTHOR), Swindell, Joshua (AUTHOR), Castanon, Eli G. (AUTHOR), Carl, Amy (AUTHOR), Lewis, David J. (AUTHOR) |
| Source: | Science. 4/2/2026, Vol. 392 Issue 6793, p77-82. 6p. |
| Subjects: | Adatoms, Gold clusters, Polar solvents, Imaging systems, Electron microscopy, Catalysis, Deep learning, Solid-liquid interfaces |
| Abstract: | The structure and dynamics of adsorbed atoms (adatoms) at solid-liquid interfaces determine the performance of advanced catalysts, electrochemical devices, molecular separation technologies, and metal extraction from waste streams. However, in situ investigations of atomically dispersed metals in various chemical environments have been prevented by insufficient imaging resolution and solvent incompatibility. In this study, we combined a specimen design that provides atomic resolution in liquid-phase electron microscopy with deep learning–enabled analysis to explore the interactions between gold adatoms, graphite support, and the solvent collectively. We tracked the locations of >106 graphite-supported gold adatoms, dimers, and larger clusters in five solvents. Although their initial atomic dispersion was determined by the solvent polarity, fast drying kinetics at low temperature was required for optimizing catalytic performance. Editor's summary: Interactions between adsorbed gold atoms, a graphite support, and organic solvents have been revealed by atomic-resolution environmental transmission electron microscopy. Sullivan-Allsop et al. encapsulated patterned hexagonal boron nitride within thin graphite layers to create solvent wells with the same gold concentrations. A deep-learning analysis of thousands of high-resolution images tracked the locations of more than 106 graphite-supported adsorbed gold atoms, dimers, and larger clusters. These results provide insight into role of solvent polarity and fast-drying kinetics in gold-catalyzed acetylene hydrochlorination. —Phil Szuromi [ABSTRACT FROM AUTHOR] |
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| Database: | Psychology and Behavioral Sciences Collection |
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| Abstract: | The structure and dynamics of adsorbed atoms (adatoms) at solid-liquid interfaces determine the performance of advanced catalysts, electrochemical devices, molecular separation technologies, and metal extraction from waste streams. However, in situ investigations of atomically dispersed metals in various chemical environments have been prevented by insufficient imaging resolution and solvent incompatibility. In this study, we combined a specimen design that provides atomic resolution in liquid-phase electron microscopy with deep learning–enabled analysis to explore the interactions between gold adatoms, graphite support, and the solvent collectively. We tracked the locations of >106 graphite-supported gold adatoms, dimers, and larger clusters in five solvents. Although their initial atomic dispersion was determined by the solvent polarity, fast drying kinetics at low temperature was required for optimizing catalytic performance. Editor's summary: Interactions between adsorbed gold atoms, a graphite support, and organic solvents have been revealed by atomic-resolution environmental transmission electron microscopy. Sullivan-Allsop et al. encapsulated patterned hexagonal boron nitride within thin graphite layers to create solvent wells with the same gold concentrations. A deep-learning analysis of thousands of high-resolution images tracked the locations of more than 106 graphite-supported adsorbed gold atoms, dimers, and larger clusters. These results provide insight into role of solvent polarity and fast-drying kinetics in gold-catalyzed acetylene hydrochlorination. —Phil Szuromi [ABSTRACT FROM AUTHOR] |
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| ISSN: | 00368075 |
| DOI: | 10.1126/science.adw2469 |
