|
Title
|
|
|
|
Self-organized platinum nanoparticles on freestanding graphene
|
|
|
Author
|
|
|
|
|
|
|
Abstract
|
|
|
|
| Freestanding graphene membranes were successfully functionalized with platinum nanoparticles (Pt NPs). High-resolution transmission electron microscopy revealed a homogeneous distribution of single-crystal Pt NPs that tend to exhibit a preferred orientation. Unexpectedly, the NPs were also found to be partially exposed to the vacuum with the top Pt surface raised above the graphene substrate, as deduced from atomic-scale scanning tunneling microscopy images and detailed molecular dynamics simulations. Local strain accumulation during the growth process is thought to be the origin of the NP self-organization. These findings are expected to shape future approaches in developing Pt NP catalysts for fuel cells as well as NP-functionalized graphene-based high-performance electronics. |
|
|
|
Language
|
|
|
|
English
|
|
|
Source (journal)
|
|
|
|
ACS nano. - -
|
|
|
Publication
|
|
|
|
2014
|
|
|
ISSN
|
|
|
|
1936-0851
|
|
|
DOI
|
|
|
|
10.1021/NN406394F
|
|
|
Volume/pages
|
|
|
|
8
:3
(2014)
, p. 2697-2703
|
|
|
ISI
|
|
|
|
000333539400085
|
|
|
Full text (Publisher's DOI)
|
|
|
|
|
|