Two distinctive energy migration pathways of monolayer molecules on metal nanoparticle surfaces

Simple item page
dc.citation.articleNumber10749
dc.citation.journalTitleNature Communications
dc.citation.volumeNumber7
dc.contributor.authorLi, Jiebo
dc.contributor.authorQian, Huifeng
dc.contributor.authorChen, Hailong
dc.contributor.authorZhao, Zhun
dc.contributor.authorYuan, Kaijun
dc.contributor.authorChen, Guangxu
dc.contributor.authorMiranda, Andrea
dc.contributor.authorGuo, Xunmin
dc.contributor.authorChen, Yajing
dc.contributor.authorZheng, Nanfeng
dc.contributor.authorWong, Michael S.
dc.contributor.authorZheng, Junrong
dc.date.accessioned2017-05-24T16:33:35Z
dc.date.available2017-05-24T16:33:35Z
dc.date.issued2016
dc.description.abstractEnergy migrations at metal nanomaterial surfaces are fundamentally important to heterogeneous reactions. Here we report two distinctive energy migration pathways of monolayer adsorbate molecules on differently sized metal nanoparticle surfaces investigated with ultrafast vibrational spectroscopy. On a 5 nm platinum particle, within a few picoseconds the vibrational energy of a carbon monoxide adsorbate rapidly dissipates into the particle through electron/hole pair excitations, generating heat that quickly migrates on surface. In contrast, the lack of vibration-electron coupling on approximately 1 nm particles results in vibrational energy migration among adsorbates that occurs on a twenty times slower timescale. Further investigations reveal that the rapid carbon monoxide energy relaxation is also affected by the adsorption sites and the nature of the metal but to a lesser extent. These findings reflect the dependence of electron/vibration coupling on the metallic nature, size and surface site of nanoparticles and its significance in mediating energy relaxations and migrations on nanoparticle surfaces.
dc.identifier.citationLi, Jiebo, Qian, Huifeng, Chen, Hailong, et al.. "Two distinctive energy migration pathways of monolayer molecules on metal nanoparticle surfaces." <i>Nature Communications,</i> 7, (2016) Springer Nature: https://doi.org/10.1038/ncomms10749.
dc.identifier.doihttps://doi.org/10.1038/ncomms10749
dc.identifier.urihttps://hdl.handle.net/1911/94371
dc.language.isoeng
dc.publisherSpringer Nature
dc.rightsThis work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the articleﾒs Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleTwo distinctive energy migration pathways of monolayer molecules on metal nanoparticle surfaces
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
migration-pathways.pdf
Size:
1.94 MB
Format:
Adobe Portable Document Format
Download
Collections
Faculty Publications
Chemical and Biomolecular Engineering Publications
Chemistry Publications