Issue 39, 2011
From the journal:

Journal of Materials Chemistry

Hybrid graphene–metal nanoparticle systems: electronic properties and gas interaction†

Verawati Tjoa,ab   Wei Jun,b   Vinayak Dravid,c   Subodh Mhaisalkarad  and  Nripan Mathews*a  

* Corresponding authors

a School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, Singapore
E-mail: Nripan@ntu.edu.sg
Fax: +65-67909081

b Singapore Institute of Manufacturing Technology, Tower Block Lv5, Singapore

c Department of Materials Science and Engineering, Cook Hall, Northwestern University, Evanston, IL, USA

d Energy Research Center @ NTU (ERI@N), Nanyang Technological University, Research Technoplaza, Lv 5, 50 Nanyang Drive, Singapore

Abstract

Electrical properties of reduced graphene oxide (rGO) decorated with gold and silver nanoparticles were studied. Metal nanoparticles p-dope rGO through charge transfer which causes a potential drop at the metal nanoparticle–graphene interface. Probing by reactive gases showed that the nanoparticles provide interaction sites, inducing the sensitivity to H2S and improving the sensitivity to NO2.

Graphical abstract: Hybrid graphene–metal nanoparticle systems: electronic properties and gas interaction

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Article information

DOI
https://doi.org/10.1039/C1JM12676H
Article type
Paper
Submitted
10 Jun 2011
Accepted
28 Jul 2011
First published
25 Aug 2011

J. Mater. Chem., 2011,21, 15593-15599

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Hybrid graphene–metal nanoparticle systems: electronic properties and gas interaction

V. Tjoa, W. Jun, V. Dravid, S. Mhaisalkar and N. Mathews, J. Mater. Chem., 2011, 21, 15593 DOI: 10.1039/C1JM12676H

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