In situatomic imaging of coalescence of Au nanoparticles on graphene: rotation and grain boundary migration

In situatomic imaging of coalescence of Au nanoparticles on graphene: rotation and grain boundary migration

Using in situtransmission electron microscopy, we demonstrated that gold nanoparticles are unified via"oriented attachment" assisted either by nanoparticle rotation or grain boundary migration at the attachment interface. We also observed that the combined nanoparticle changes shape with s...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2013-11, Vol.49 (98), p.11479-11481
Hauptverfasser: Yuk, Jong Min, Jeong, Myoungho, Kim, Sang Yun, Seo, Hyeon Kook, Kim, Jihyun, Lee, Jeong Yong
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Sprache:eng
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Zusammenfassung:Using in situtransmission electron microscopy, we demonstrated that gold nanoparticles are unified via"oriented attachment" assisted either by nanoparticle rotation or grain boundary migration at the attachment interface. We also observed that the combined nanoparticle changes shape with stable facet planes viasurface diffusion, along with recrystallization.
ISSN:1359-7345
1364-548X
DOI:10.1039/c3cc46545d