Elucidation of the Electrochemical Oxidation Pathway of Ammonia in Dimethylformamide and the Room Temperature Ionic Liquid, 1‐Ethyl‐3‐methylimidazolium bis(trifluoromethylsulfonyl)imide | Zendy

Buzzeo Marisa C. | Zendy; Giovanelli Debora | Zendy; Lawrence Nathan S. | Zendy; Hardacre Christopher | Zendy; Seddon Kenneth R. | Zendy; Compton Richard G. | Zendy

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Elucidation of the Electrochemical Oxidation Pathway of Ammonia in Dimethylformamide and the Room Temperature Ionic Liquid, 1‐Ethyl‐3‐methylimidazolium bis(trifluoromethylsulfonyl)imide

Author(s) -

Buzzeo Marisa C.,

Giovanelli Debora,

Lawrence Nathan S.,

Hardacre Christopher,

Seddon Kenneth R.,

Compton Richard G.

Publication year - 2004

Publication title -

electroanalysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.574

H-Index - 128

eISSN - 1521-4109

pISSN - 1040-0397

DOI - 10.1002/elan.200302910

Subject(s) - ionic liquid , dimethylformamide , chemistry , imide , electrochemistry , ammonia , inorganic chemistry , redox , solvent , organic chemistry , electrode , catalysis

The direct electrochemical oxidation of ammonia has been examined in both the organic solvent dimethylformamide (DMF) and the room temperature ionic liquid 1‐ethyl‐3‐methylimidazolium bis(trifluoromethylsulfonyl)imide [EMIM][N(Tf) 2 ]. The corresponding voltammetric responses have been shown to be similar in each solvent with a broad oxidative wave occurring upon the introduction of ammonia to the solution and the appearance of a new reductive wave following the oxidation. The oxidative reaction process has been examined and a suitable reaction pathway has been deduced, corresponding to the formation of ammonium cations after oxidation of the ammonia. A linear response of limiting current against vol% ammonia was observed in both DMF and [EMIM][N(Tf) 2 ], suggesting potential application for analytical methods.

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