Title

Anchoring Ceria Nanoparticles On Reduced Graphene Oxide And Their Electronic Transport Properties

Abstract

We report a simple scheme of anchoring crystalline ceria nanoparticles (CNPs) onto reduced graphene oxide (RGO) sheets. Two types of CNPs, consisting of predominantly either Ce 3+ or Ce 4+ valence states, were mixed with GO suspended in water, with simultaneous reduction using hydrazinetoyield CNP/RGO composite. Structural and surface characterizations reveal a strong electrostatic interaction between the CNPs and the RGO. Electrical characterizations show that with increased oxygen vacancies from Ce 4+ to Ce 3+ states the predominantly ambipolar RGO transforms to n-type CNP/RGO compo- sites due to the electrostatic interaction between the localized electrons in oxygen vacancy sites of CNPs and mobile holes in RGO. © 2011 American Chemical Society.

Publication Date

12-22-2011

Publication Title

Journal of Physical Chemistry C

Volume

115

Issue

50

Number of Pages

24494-24500

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1021/jp206485v

Socpus ID

84863115621 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84863115621

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