2017
DOI: 10.1002/smtd.201700286
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Strategies for Stabilizing Atomically Dispersed Metal Catalysts

Abstract: usually consist of ill-defined catalytic sites such that the reaction may undergo different catalytic pathways at different sites with different structural features. [2] The catalytic performance of a typical supported metal catalyst depends on numerous parameters, such as the composition, size, and shape of the metal nanoparticles, the nature of the supports, and the metal-support interactions, making it highly challenging to identify the catalytic site and thus simultaneously achieve high activity and high… Show more

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Cited by 322 publications
(227 citation statements)
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References 246 publications
(169 reference statements)
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“…The prerequisite for the catalyst was that it should be thermodynamically stable to withstand in various acidic or alkaline condition during the electrochemical processes. Decreasing the size of the particles, the coordination number decreased and the surface energy increased, which would result in severe metal agglomeration . Such effect was especially prominent for the atomic dispersed catalyst.…”
Section: Resultsmentioning
confidence: 99%
“…The prerequisite for the catalyst was that it should be thermodynamically stable to withstand in various acidic or alkaline condition during the electrochemical processes. Decreasing the size of the particles, the coordination number decreased and the surface energy increased, which would result in severe metal agglomeration . Such effect was especially prominent for the atomic dispersed catalyst.…”
Section: Resultsmentioning
confidence: 99%
“…Since 2018, both in situ environmental TEM and operando XAS have been performed to interpret the formation of single atoms during the pyrolysis process and their local structure changes during the electrocatalysis . In addition, the stability of single atoms during the long term catalysis process, and the exact role played by atoms and the support have also drawn considerable attention from researchers …”
Section: Evolution From Nanoparticles Clusters To Single Atomsmentioning
confidence: 99%
“…II) Strong interaction between atoms and supports: the covalent bonds between single metal atoms and supports could result in accurate control over the structure, making it easier to understand the possible catalytic sites. During the catalysis process underlying the SACs, since the isolated metal atoms are vigorously introduced into surface sites, the facile mobility and diffusivity of metal atoms are effectively suppressed . III) High catalytic activity: it is believed that the interaction between single metal atoms and supports dampens the energy barriers to improve catalytic activity during the reaction process .…”
Section: Introductionmentioning
confidence: 99%