Layer-by-layer assembled multilayer of graphene/Prussian blue toward simultaneous electrochemical and SPR detection of H2O2

Publication: Research - peer-reviewJournal article – Annual report year: 2011

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Layer-by-layer assembled multilayer of graphene/Prussian blue toward simultaneous electrochemical and SPR detection of H2O2. / Mao, Yan; Bao, Yu; Wang, Wei; Li, Zhenggang; Li, Fenghua; Niu, Li.

In: Talanta, Vol. 85, No. 4, 2011, p. 2106-2112.

Publication: Research - peer-reviewJournal article – Annual report year: 2011

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Mao, Yan; Bao, Yu; Wang, Wei; Li, Zhenggang; Li, Fenghua; Niu, Li / Layer-by-layer assembled multilayer of graphene/Prussian blue toward simultaneous electrochemical and SPR detection of H2O2.

In: Talanta, Vol. 85, No. 4, 2011, p. 2106-2112.

Publication: Research - peer-reviewJournal article – Annual report year: 2011

Bibtex

@article{f092de024a95401ea932638408e206e1,
title = "Layer-by-layer assembled multilayer of graphene/Prussian blue toward simultaneous electrochemical and SPR detection of H2O2",
publisher = "Elsevier BV",
author = "Yan Mao and Yu Bao and Wei Wang and Zhenggang Li and Fenghua Li and Li Niu",
year = "2011",
doi = "10.1016/j.talanta.2011.07.056",
volume = "85",
number = "4",
pages = "2106--2112",
journal = "Talanta",
issn = "0039-9140",

}

RIS

TY - JOUR

T1 - Layer-by-layer assembled multilayer of graphene/Prussian blue toward simultaneous electrochemical and SPR detection of H2O2

A1 - Mao,Yan

A1 - Bao,Yu

A1 - Wang,Wei

A1 - Li,Zhenggang

A1 - Li,Fenghua

A1 - Niu,Li

AU - Mao,Yan

AU - Bao,Yu

AU - Wang,Wei

AU - Li,Zhenggang

AU - Li,Fenghua

AU - Niu,Li

PB - Elsevier BV

PY - 2011

Y1 - 2011

N2 - A new type of chemically converted graphene sheets, cationic polyelectrolyte-functionalized ionic liquid decorated graphene sheets (PFIL–GS) composite, was synthesized and characterized by Ultraviolet–visible (UV–vis) absorption, Fourier transform infrared, and Raman spectroscopy. It was found that the presence of PFIL enabled the formation of a very stable aqueous dispersion due to the electrostatic repulsion between PFIL modified graphene sheets. With respect to the excellent dispersibility of this material, we have fabricated a novel PFIL–GS/Prussian blue (PB) nanocomposite multilayer film via classic layer-by-layer (LBL) assembly. The assembly process was confirmed by UV–vis spectroscopy and surface plasmon resonance (SPR) spectroscopy, which showed linear responses to the numbers of the deposited PFIL–GS/PB bilayers. Moreover, the as-prepared composite films were used to detect hydrogen peroxide (H2O2) by electrochemical surface plasmon resonance (EC-SPR) spectroscopy. This real time EC-SPR technique can provide simultaneous monitoring of both optical SPR signal and electrochemical current responses upon injecting H2O2 into the reaction cell. The experimental results revealed that both the electrochemical and SPR signal exhibited splendid linear relationship to the concentration of the injected H2O2, and the detection limit could be up to 1μM.

AB - A new type of chemically converted graphene sheets, cationic polyelectrolyte-functionalized ionic liquid decorated graphene sheets (PFIL–GS) composite, was synthesized and characterized by Ultraviolet–visible (UV–vis) absorption, Fourier transform infrared, and Raman spectroscopy. It was found that the presence of PFIL enabled the formation of a very stable aqueous dispersion due to the electrostatic repulsion between PFIL modified graphene sheets. With respect to the excellent dispersibility of this material, we have fabricated a novel PFIL–GS/Prussian blue (PB) nanocomposite multilayer film via classic layer-by-layer (LBL) assembly. The assembly process was confirmed by UV–vis spectroscopy and surface plasmon resonance (SPR) spectroscopy, which showed linear responses to the numbers of the deposited PFIL–GS/PB bilayers. Moreover, the as-prepared composite films were used to detect hydrogen peroxide (H2O2) by electrochemical surface plasmon resonance (EC-SPR) spectroscopy. This real time EC-SPR technique can provide simultaneous monitoring of both optical SPR signal and electrochemical current responses upon injecting H2O2 into the reaction cell. The experimental results revealed that both the electrochemical and SPR signal exhibited splendid linear relationship to the concentration of the injected H2O2, and the detection limit could be up to 1μM.

KW - Ionic liquid

KW - Prussian blue

KW - Electrochemical-surface plasmon

KW - Graphene

KW - Hydrogen peroxide

KW - Resonance

U2 - 10.1016/j.talanta.2011.07.056

DO - 10.1016/j.talanta.2011.07.056

JO - Talanta

JF - Talanta

SN - 0039-9140

IS - 4

VL - 85

SP - 2106

EP - 2112

ER -