Size and dispersion control of Pt nanoparticles grown upon graphite-derived nanosheets

Yürüm, Alp and Alkan Gürsel, Selmiye and Saner Okan, Burcu and Taralp, Alpay and Bakan, Feray and Letofsky-Papst, Ilse and Yürüm, Yuda (2014) Size and dispersion control of Pt nanoparticles grown upon graphite-derived nanosheets. (Accepted/In Press)

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Official URL: http://dx.doi.org/10.1080/00986445.2014.968714


Graphite oxide nanosheets (GO), graphene nanosheets (GNS), and nanocomposites comprising of GO or GNS coated with polypyrrole (PPy) were prepared and assessed for their ability to influence the surface deposition and growth of Pt nanoparticles. GO was obtained from graphite via oxidation and exfoliation, and GNS was obtained from GO in a subsequent reduction. Both GO and GNS were coated with PPy via in situ polymerization of pyrrole (Py), forming surface-enhanced materials. SEM, EDX, TEM, EELS, Raman, and AFM findings showed that the Pt nanoparticle loading, agglomeration size, aggregate morphology and surface dispersion varied according to the nanosheet surface, nanocomposite type, and Py/nanosheet feed ratio.

Item Type:Article
Uncontrolled Keywords:Graphite oxide, graphene nanosheet, polypyrrole, nanocomposite, platinum, dispersion, size control
Subjects:Q Science > Q Science (General)
Q Science > QD Chemistry
ID Code:25112
Deposited By:Burcu Saner Okan
Deposited On:14 Nov 2014 22:24
Last Modified:12 Oct 2015 11:43

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