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• W3040482186 endingPage "13101" @default.
• W3040482186 startingPage "13090" @default.
• W3040482186 abstract "Localized surface plasmon resonances (LSPRs) have attracted much recent attention for their potential in promoting chemical reactions with light. However, the mechanism of LSPR-induced chemical reactions is still not clear, even for H2 dissociation on metal nanoparticles. In this work, we investigate the mechanism for photoinduced H2 dissociation using a simple H2@Au6 model. Our time-dependent density functional theory calculations indicate that the initial excitation is largely restricted to the metal cluster, involving intraband excitation that produces hot electrons (HEs). However, diabatization via overlapping orbitals reveals two types of nested electronic states, one involving excitations of the metallic electrons, namely, the HE states, and the other concerned with charge transfer (CT) to the adsorbate antibonding σ* orbital. Dissociation of H2 thus takes place by transitions from the former to the latter. Quantum dynamics simulations on the diabatic CT states suggest rapid dissociation of H2, while no such dissociation occurs on diabatic HE states. Our research provides a clear physical picture of photoinduced H2 dissociation on Au clusters, which has important implications in plasmonic facilitated photocatalysis." @default.
• W3040482186 created "2020-07-10" @default.
• W3040482186 creator A5038375764 @default.
• W3040482186 creator A5064735594 @default.
• W3040482186 creator A5067021218 @default.
• W3040482186 creator A5076740203 @default.
• W3040482186 creator A5091701298 @default.
• W3040482186 date "2020-07-03" @default.
• W3040482186 modified "2023-10-16" @default.
• W3040482186 title "Mechanistic Insights into Photocatalyzed H₂ Dissociation on Au Clusters" @default.
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