Electrochemical Behavior of Sodium Azide at Pt and Au Electrodes in Sodium Sulfate Electrolyte A DEMS Study

A. Daimia, S. Wasmus, R. F. Savine, C. C. Liu

研究成果: 雜誌貢獻期刊論文同行評審

14 引文 斯高帕斯(Scopus)

摘要

The electro-oxidation and -reduction of sodium azide at porous painted platinum and gold electrodes was studied using the multipurpose electrochemical mass spectrometry (MPEMS) which was operated in the differential electrochemical mass spectrometry (DEMS) mode. The platinum electrode was found to be active for electro-oxidation as well os for electroreduction. Above 0.3 V vs, Hg/Hg2SO4? azide is oxidized to give N2, NO, NO2, and N2O. Reduction of azide takes place below -0.9 V forming N2f N2H4, and possibly NH3. In contrast to platinum, gold showed only activity for the electro-oxidation of azide leading to the formation of N2, NO, NO2, and N2O above 0.5 V. Evidence for a reaction without evolution of volatile products was also found taking place above 0.1 V. A reaction mechanism is discussed emphasizing the role of adsorbed hydrogen and oxygen.

原文???core.languages.en_GB???
頁(從 - 到)3735-3740
頁數6
期刊Journal of the Electrochemical Society
142
發行號11
DOIs
出版狀態已出版 - 11月 1995

指紋

深入研究「Electrochemical Behavior of Sodium Azide at Pt and Au Electrodes in Sodium Sulfate Electrolyte A DEMS Study」主題。共同形成了獨特的指紋。

引用此