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Nitrate and Nitrite Electrocatalytic Reduction at Layer-by-Layer Films Composed of Dawson-type Heteropolyanions Mono-substituted with Transitional Metal Ions and Silver Nanoparticles
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- Imar, Shahzad (author)
- Dundalk Institute Technology, Ireland
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- Yaqub, Mustansara (author)
- Dundalk Institute Technology, Ireland
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- Maccato, Chiara (author)
- University of Padua, Italy
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- PERGAMON-ELSEVIER SCIENCE LTD, 2015
- 2015
- English.
- In: Electrochimica Acta. - : PERGAMON-ELSEVIER SCIENCE LTD. - 0013-4686 .- 1873-3859. ; 184, s. 323-330
- Journal article (peer-reviewed)
Abstract
Subject headings
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- A series of Dawson-type heteropolyanions (HPAs) mono-substituted with transitional metal ions ((alpha 2)- [P2W17O61FeIII](8-), (alpha 2)-[P2W17O61CuII](8-) and (alpha 2)-[P2W17O61NiII](8-)) have exhibited electrocatalytic properties towards nitrate and nitrite reduction in slightly acidic media (pH 4.5). The immobilization of these HPAs into water-processable films developed via layer-by layer assembly with polymer-stabilized silver nanoparticles led to the fabrication of the electrocatalytic interfaces for both nitrate and nitrite reduction. The LBL assembly as well as the changes in the HPA properties by immobilization has been characterized by electrochemical methods. The effects of the substituent ions, outer layers and the cationic moieties utilized for the films assembly of the developed film on the performances of nitrate electrocatalysis has been elucidated. (C) 2015 Elsevier Ltd. All rights reserved.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- Mono-substituted heteropolyanions; nitrate reduction; silver nanoparticles; electrocatalysis; layer-by-layer assembly
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Linköping University
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