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A novel reduced graphene oxide/Ag/CeO2 ternary nanocomposite: Green synthesis and catalytic properties

Paper ID Volume ID Publish Year Pages File Format Full-Text
45381 46410 2014 8 PDF Available
Title
A novel reduced graphene oxide/Ag/CeO2 ternary nanocomposite: Green synthesis and catalytic properties
Abstract

•RGO/Ag/CeO2 ternary nanocomposite was synthesized by a facile and green strategy.•Ag and CeO2 nanoparticles were uniformly deposited on the surface of RGO.•The RGO/Ag/CeO2 show higher catalytic activity and stability than RGO/Ag.•Possible mechanism for the enhanced catalytic performance was proposed.

The incorporation of two or more active components onto graphene with uniform distribution is expected to facilitate wider applications of graphene-based materials. In this study, a three-component composite composed of reduced graphene oxide (RGO), CeO2 and Ag nanoparticles was designed and synthesized by a facile and environmentally friendly strategy for the first time. It is shown that Ag and CeO2 nanoparticles are uniformly deposited on the surface of RGO sheets. The catalytic properties of the RGO/Ag/CeO2 ternary hybrid nanomaterials were evaluated with the reduction of p-nitrophenol by NaBH4 as a model reaction. The results reveal that the presence of CeO2 not only has a great influence on the size of the Ag nanoparticles formed on RGO, but also can significantly improve the catalytic activity and stability of them. Possible mechanisms for the reduced size of Ag nanoparticles and the enhanced catalytic performance of RGO/Ag nanocomposites after combining with CeO2 were proposed. The facile synthesis of RGO/Ag/CeO2 nanomaterials together with their superior catalytic performance provides a potentially new approach for the design and construction of graphene-based ternary nanostructured composites with various functions.

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Keywords
Graphene; Cerium oxide; Silver; Synthesis; Catalysis
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A novel reduced graphene oxide/Ag/CeO2 ternary nanocomposite: Green synthesis and catalytic properties
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 144, January 2014, Pages 454–461
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us