Issue 10, 2013
From the journal:

Analyst

Controllable synthesis of silver nanoparticle-decorated reduced graphene oxide hybrids for ammonia detection†

Shumao Cui,a   Shun Mao,a   Zhenhai Wen,a   Jingbo Chang,a   Yang Zhanga  and  Junhong Chen*a  

* Corresponding authors

a Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 N Cramer Street, Milwaukee, WI, USA
E-mail: jhchen@uwm.edu
Fax: +1-414-229-6958
Tel: +1-414-229-2615

Abstract

We demonstrate controllable fabrication of Ag nanoparticle (NP)-decorated reduced graphene oxide (RGO/Ag) hybrids and their application for fast and selective detection of ammonia at room temperature. Ag NPs greatly improved the sensitivity of RGO. The response time (6 s) and recovery time (10 s) are comparable with our previous Ag NP-decorated multiwalled carbon nanotube (MWCNT/Ag) NH3 sensors; however, the sensitivity is about twice that of MWCNT/Ag hybrids. We found that the loading density of NPs greatly affects the sensing performance of RGO/Ag hybrids and a proper NP loading leads to maximum sensitivity.

Graphical abstract: Controllable synthesis of silver nanoparticle-decorated reduced graphene oxide hybrids for ammonia detection

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Article information

DOI
https://doi.org/10.1039/C3AN36922F
Article type
Paper
Submitted
28 Dec 2012
Accepted
07 Mar 2013
First published
07 Mar 2013
This article is Open Access
Creative Commons BY-NC license

Analyst, 2013,138, 2877-2882

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Controllable synthesis of silver nanoparticle-decorated reduced graphene oxide hybrids for ammonia detection

S. Cui, S. Mao, Z. Wen, J. Chang, Y. Zhang and J. Chen, Analyst, 2013, 138, 2877 DOI: 10.1039/C3AN36922F

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