Title: The Electrochemical Behavior and the Quantitative Determination of Nitrogen Dioxide at a Solid Polymer Electrolyte Supported Pt‐Au Electrode
Abstract: Abstract The electrochemical behavior of NO 2 at Au/Nafion, Pt/Nafion and Pt‐Au/Nafion electrodes was investigated by using electrochemical and SEM methods, respectively. It was found that the Pt‐Au/Nafion electrode showed higher electrocatalytic activity than Pt/Nafion and Au/Nafion electrodes. The net current density of Au/Nafion electrode decayed significantly during the reaction, though it showed high initial value. Pt/Nafion and Pt‐Au/Nafion electrodes, on the contrary, showed good stability. A quantitative determination of NO 2 concentration was carried out at Pt‐Au/Nafion electrode and a satisfactory linear relationship was found for the NO 2 concentration in the range of 0–100 ppm.
Publication Year: 2004
Publication Date: 2004-08-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 5
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