Electrochemical properties of gas-generated silver nanoparticles in the presence of cyano- and chloride-containing compounds

Armando J. Marenco; David B. Pedersen; Shiliang Wang; Michael W. P. Petryk; Heinz-Bernhard Kraatz

doi:10.1039/B909748A

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Analyst

Issue 10, 2009

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Electrochemical properties of gas-generated silver nanoparticles in the presence of cyano- and chloride-containing compounds

Armando J. Marenco , David B. Pedersen , Shiliang Wang , Michael W. P. Petryk and Heinz-Bernhard Kraatz

Analyst, 2009, 134, 2021-2027

DOI: 10.1039/B909748A
Received 18 May 2009, Accepted 07 Aug 2009
First published on the web 14 Aug 2009

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Abstract
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The electrochemistry of gas-generated naked Ag nanoparticles deposited on indium-tin oxide covered glass plates is compared to bulk polycrystalline Ag. The nano-specific electrochemistry has been identified and includes the preferential formation of β-oxides. In 100 mM KOH supporting electrolyte, disruption of β-oxide formation is exploited to test for the presence of diethyl cyanophosphonate. While in 8.0 M KOH, β-oxide formation is enhanced leading to testing capabilities for 2-chloroethyl ethyl sulfide. These non-redox active compounds are effective simulants for the chemical warfare agents Tabun nerve agent and sulfur mustard, respectively.

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AFM images, CV scans and EDX analysis of Ag NPs
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Articles By

Armando J. Marenco
David B. Pedersen
Shiliang Wang
Michael W. P. Petryk
Heinz-Bernhard Kraatz

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Electrochemical properties of gas-generated silver nanoparticles in the presence of cyano- and chloride-containing compounds

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