Andreoli, Enrico and Annibaldi, Valeria and Rooney, A. Denise and Liao, Kang-Shyang and Alley, Nigel J. and Curran, Seamus A. and Breslin, Carmel B.
(2011)
Electrochemical Conversion of Copper-Based Hierarchical Micro/
Nanostructures to Copper Metal Nanoparticles and Their Testing
in Nitrate Sensing.
Electroanalysis, 23 (9).
pp. 2164-2173.
ISSN 1040-0397
Abstract
Metallic copper nanoparticles (CuNP) are formed from the reduction of hierarchical copper-based micro/nanostructures
previously electrodeposited on polypyrrole-polystyrene sulfonate (PPy-PSS) thin films. The application of a
high reduction potential causes the erosion of the micro/nanostructures nanosheets and the formation of CuNP. The
CuNP are used in a series of preliminary tests in order to assess their performance in the sensing of nitrate. The
sensing performance is improved with the introduction of polyethyleneimine-functionalized multiwall carbon nanotubes
(MWNT-PEI) to the PPy-PSS films. Electrochemical impedance spectroscopy studies show that the nanotubes
increased the electronic conductivity of the reduced films. The limit of detection of the PPy-PSS-MWNT-PEI-CuNP
nanocomposite is 30 mM nitrate. The materials need further development and optimization work in order to be applied
as sensors.
| Item Type: |
Article
|
| Keywords: |
Polypyrrole; Copper nanoparticles; Multiwall carbon nanotubes; Nitrate sensing; |
| Academic Unit: |
Faculty of Science and Engineering > Chemistry |
| Item ID: |
7912 |
| Identification Number: |
https://doi.org/10.1002/elan.201100105 |
| Depositing User: |
Dr. Carmel Breslin
|
| Date Deposited: |
14 Feb 2017 12:37 |
| Journal or Publication Title: |
Electroanalysis |
| Publisher: |
Wiley |
| Refereed: |
Yes |
| Funders: |
Environmental Protection Agency (EPA), Science Foundation Ireland (SFI) |
| URI: |
|
| Use Licence: |
This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available
here |
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