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Issue 37, 2012
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Layer-by-layer inkjet printing of fabricating reduced graphene-polyoxometalate composite film for chemical sensors

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Abstract

Graphene oxide (GO) nanosheets and polyoxometalate such as H3PW12O40 (PTA) are prepared into a multilayer film via a layer-by-layer inkjet printing method. The GO/PTA composite thin film shows linear, uniform and regular layer-by-layer growth. Under UV-irradiation, a photoreduction reaction takes place in the film which converts GO to reduced GO (rGO) due to the photoreduction activity of polyoxometalate clusters. According to the cyclic voltammograms measurement, the rGO/PTA composite film displays good electrocatalytic activity for the oxidation of dopamine (DA). The oxidation peak current (Ipa) increases gradually with increasing the dopamine concentration, which may be used in electrochemical biosensors.

Graphical abstract: Layer-by-layer inkjet printing of fabricating reduced graphene-polyoxometalate composite film for chemical sensors

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Publication details

The article was received on 15 May 2012, accepted on 30 Jul 2012 and first published on 31 Jul 2012


Article type: Paper
DOI: 10.1039/C2CP41561E
Citation: Phys. Chem. Chem. Phys., 2012,14, 12757-12763
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    Layer-by-layer inkjet printing of fabricating reduced graphene-polyoxometalate composite film for chemical sensors

    H. Zhang, A. Xie, Y. Shen, L. Qiu and X. Tian, Phys. Chem. Chem. Phys., 2012, 14, 12757
    DOI: 10.1039/C2CP41561E

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