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Type: Artigo
Title: Synthesis Of Self-assembled And Hierarchical Palladium-cnts-reduced Graphene Oxide Composites For Enhanced Field Emission Properties
Author: Kumar
Rajesh; Singh
Rajesh K.; Singh
Dinesh P.; Vaz
Alfredo R.; Yadav
Raja R.; Rout
Chandra S.; Moshkalev
Stanislav A.
Abstract: We report the synthesis of palladium-graphene oxide based (Pd-rGO) composite and its enhanced electron field emission studies. The palladium nanoparticles decorated reduced graphene oxide (Pd-NPs-rGO) and Pd catalyst assisted grown CNTs on reduced graphene oxide (Pd-CNTs-rGO) composite have been synthesized employing microwave. The hierarchical Pd-CNTs-rGO composite shows enhanced field emission performance due to the synergestic effect of Pd catalyst assisted grown CNTs on rGO nanosheets (rGO-NSs) and its proper contact on rGO surfaces. The enhanced field emission behavior of Pd-CNTs-rGO composite is attributed to the easy electron tunneling from the one-dimensional CNTs, which increases the emission sites and hence the field emission current density. The Pd-CNTs-rGO composite exhibits lower turn-on field, lower threshold field, larger field enhancement factor and high emission current stability as compared to Pd-NPs-rGO composite. (C) 2017 Elsevier Ltd. All rights reserved.
Subject: Reduced Graphene Oxide
Pd Nanoparticles
Pd-cnts-rgo Composites
Microwave Treatment
Field Emission Properties
Editor: Elsevier Sci LTD
Rights: fechado
Identifier DOI: 10.1016/j.matdes.2017.02.089
Date Issue: 2017
Appears in Collections:Unicamp - Artigos e Outros Documentos

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