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Erschienen in: Journal of Nanoparticle Research 4/2015

01.04.2015 | Research Paper

Sulfur-doped graphene-supported Ag nanoparticles for nonenzymatic hydrogen peroxide detection

verfasst von: Ye Tian, Yu Liu, Weiping Wang, Xiao Zhang, Wei Peng

Erschienen in: Journal of Nanoparticle Research | Ausgabe 4/2015

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Abstract

Heteroatom doping is an effective way to modulate the physicochemical properties of graphene and its hybrid materials. In this work, sulfur-doped graphene (SG) was used for the first time as a supporting material for loading Ag nanoparticles, and the resulting Ag/SG hybrid with a high S-doping level (2.8 at.%) and a uniform Ag NP decoration was successfully prepared by a microwave-assisted method. Electrochemical measurements revealed that the Ag/SG exhibited a better electrocatalytic activity toward H2O2 reduction than undoped Ag/reduced graphene oxide, which highlighted the important role of S-doping that could not only improve the charge transfer, but also introduce more defects as active sites. The nonenzymatic sensor based on Ag/SG displayed good sensing performances for highly sensitive, selective, and stable detection of H2O2, demonstrating that SG is indeed a promising catalyst-supporting material for electrochemical sensing.

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Metadaten
Titel
Sulfur-doped graphene-supported Ag nanoparticles for nonenzymatic hydrogen peroxide detection
verfasst von
Ye Tian
Yu Liu
Weiping Wang
Xiao Zhang
Wei Peng
Publikationsdatum
01.04.2015
Verlag
Springer Netherlands
Erschienen in
Journal of Nanoparticle Research / Ausgabe 4/2015
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI
https://doi.org/10.1007/s11051-015-2976-7

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