In situ fabrication of platinum/graphene composite shell on polymer microspheres through reactive self-assembly and in situ reduction

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

  • Joon-Suk Oh
  • Nguyen Dang Luong
  • Tae-Seon Hwang
  • Jung-Pyo Hong
  • Young Kwan Lee
  • Jae-Do Nam

Organisaatiot

  • Sungkyunkwan University

Kuvaus

We present a simple method to fabricate a uniform-sized graphene-metal-polymer composite microsphere of core-shell structure. On the surface of amine-functionalized polymer microsphere, graphene oxide (GO) sheets were affixed to give a core-shell structure by self-assembly process followed by the immobilization of platinum (Pt) ions to the assembled GO shell. Subsequently, they were chemically reduced in situ converting both GO and Pt ions to reduced GO (RGO) and Pt nanoparticles (NPs), respectively. As a result, a robust RGO-Pt composite shell, composed of RGO sheets and well-distributed Pt NPs, was fabricated on the microsphere surface. Meanwhile, the insulative GO shell was converted to the conductive RGO-Pt shell giving 24.0 S m(-1) of electrical conductivity. We demonstrated that the electrical property of the shell was significantly improved by the incorporation of Pt NPs.

Yksityiskohdat

AlkuperäiskieliEnglanti
Sivut1127-1133
Sivumäärä7
JulkaisuJournal of Materials Science
Vuosikerta48
Numero3
TilaJulkaistu - helmikuuta 2013
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

ID: 10369760