One-Step Electrodeposition of Polyallylamine-Functionalized Gold Nanodendrites and Their Application in Sensing

Pan Li; Tan Huang; Jie Yang; Shaohua Wei; Chenxin Cai; Yu Chen; Jong Min Lee

doi:10.1002/cplu.201500072

One-Step Electrodeposition of Polyallylamine-Functionalized Gold Nanodendrites and Their Application in Sensing

Pan Li, Tan Huang, Jie Yang, Shaohua Wei^*, Chenxin Cai, Yu Chen, Jong Min Lee

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The three-dimensional polyallylamine (PAH)-functionalized gold nanodendrites (PAH-3D-Au-NDs) were successfully synthesized through a simple, one-step electrodeposition method. SEM, TEM, energy-dispersive spectrum mapping, and X-ray photoelectron spectroscopy measurements were used to characterize the morphology, structure, and composition of PAH-3D-Au-NDs. The PAH-3D-Au-NDs were then used as the functional interface to effectively immobilize the ruthenium(III) ion through coordination interactions between the ruthenium(III) ion and PAH. The obtained Ru^III/PAH-3D-Au-NDs/Au electrode showed excellent electrocatalytic activity towards iodate reduction. With the use of PAH-3D-Au-NDs, the proposed iodate electrochemical sensor displayed a fast response (less than 3 s), wide linear range (4.99×10^-8 to 8.50×10^-4 M), and low detection limit (1.66×10^-8 M).

Original language	English
Pages (from-to)	1148-1152
Number of pages	5
Journal	ChemPlusChem
Volume	80
Issue number	7
DOIs	https://doi.org/10.1002/cplu.201500072
Publication status	Published - Jul 1 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
Copyright © 2015 Wiley-VCH Verlag GmbH & Co. KGaA.

ASJC Scopus Subject Areas

General Chemistry

Keywords

electrochemistry
gold
nanostructures
reduction
sensors

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title = "One-Step Electrodeposition of Polyallylamine-Functionalized Gold Nanodendrites and Their Application in Sensing",

abstract = "The three-dimensional polyallylamine (PAH)-functionalized gold nanodendrites (PAH-3D-Au-NDs) were successfully synthesized through a simple, one-step electrodeposition method. SEM, TEM, energy-dispersive spectrum mapping, and X-ray photoelectron spectroscopy measurements were used to characterize the morphology, structure, and composition of PAH-3D-Au-NDs. The PAH-3D-Au-NDs were then used as the functional interface to effectively immobilize the ruthenium(III) ion through coordination interactions between the ruthenium(III) ion and PAH. The obtained RuIII/PAH-3D-Au-NDs/Au electrode showed excellent electrocatalytic activity towards iodate reduction. With the use of PAH-3D-Au-NDs, the proposed iodate electrochemical sensor displayed a fast response (less than 3 s), wide linear range (4.99×10-8 to 8.50×10-4 M), and low detection limit (1.66×10-8 M).",

keywords = "electrochemistry, gold, nanostructures, reduction, sensors",

author = "Pan Li and Tan Huang and Jie Yang and Shaohua Wei and Chenxin Cai and Yu Chen and Lee, \{Jong Min\}",

note = "Publisher Copyright: Copyright {\textcopyright} 2015 Wiley-VCH Verlag GmbH \& Co. KGaA.",

year = "2015",

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doi = "10.1002/cplu.201500072",

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T1 - One-Step Electrodeposition of Polyallylamine-Functionalized Gold Nanodendrites and Their Application in Sensing

AU - Li, Pan

AU - Huang, Tan

AU - Yang, Jie

AU - Wei, Shaohua

AU - Cai, Chenxin

AU - Chen, Yu

AU - Lee, Jong Min

PY - 2015/7/1

Y1 - 2015/7/1

N2 - The three-dimensional polyallylamine (PAH)-functionalized gold nanodendrites (PAH-3D-Au-NDs) were successfully synthesized through a simple, one-step electrodeposition method. SEM, TEM, energy-dispersive spectrum mapping, and X-ray photoelectron spectroscopy measurements were used to characterize the morphology, structure, and composition of PAH-3D-Au-NDs. The PAH-3D-Au-NDs were then used as the functional interface to effectively immobilize the ruthenium(III) ion through coordination interactions between the ruthenium(III) ion and PAH. The obtained RuIII/PAH-3D-Au-NDs/Au electrode showed excellent electrocatalytic activity towards iodate reduction. With the use of PAH-3D-Au-NDs, the proposed iodate electrochemical sensor displayed a fast response (less than 3 s), wide linear range (4.99×10-8 to 8.50×10-4 M), and low detection limit (1.66×10-8 M).

AB - The three-dimensional polyallylamine (PAH)-functionalized gold nanodendrites (PAH-3D-Au-NDs) were successfully synthesized through a simple, one-step electrodeposition method. SEM, TEM, energy-dispersive spectrum mapping, and X-ray photoelectron spectroscopy measurements were used to characterize the morphology, structure, and composition of PAH-3D-Au-NDs. The PAH-3D-Au-NDs were then used as the functional interface to effectively immobilize the ruthenium(III) ion through coordination interactions between the ruthenium(III) ion and PAH. The obtained RuIII/PAH-3D-Au-NDs/Au electrode showed excellent electrocatalytic activity towards iodate reduction. With the use of PAH-3D-Au-NDs, the proposed iodate electrochemical sensor displayed a fast response (less than 3 s), wide linear range (4.99×10-8 to 8.50×10-4 M), and low detection limit (1.66×10-8 M).

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KW - nanostructures

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KW - sensors

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One-Step Electrodeposition of Polyallylamine-Functionalized Gold Nanodendrites and Their Application in Sensing

Abstract

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Keywords

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