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Citation: LUO Peng, HAN Yi-Ping, LU Tian-Hong, CAI Chen-Xin. Electrooxidation of NH₃ in Organic Solvent Containing Ionic Liquid[J]. Chinese Journal of Applied Chemistry, ;2008, 25(11): 1372-1374. shu

Electrooxidation of NH₃ in Organic Solvent Containing Ionic Liquid

1.
College of Chemistry and Enviromental Science, Nanjing Normal University, Nanjing 210097

Corresponding author: CAI Chen-Xin,
Received Date: 6 October 2007
Available Online: 6 February 2008
Fund Project: 华瑞科学仪器(上海)有限公司资助项目 (上海)

The oxidation of NH₃ in DMF with LiClO₄ as the electrolyte was investigated.It was found for the first time that when NH₃ is oxidized in this electrolyte,DMF is also oxidized in the similar potential range.This would interfere with the detection of NH₃.However,if an ionic liquid,BF₄,is added into DMF,the oxidation of DMF would be inhibited and the oxidation peak of NH₃ would shift negatively from 1.15 V to 0.90 V,suppressing the interference by DMF to the detection of NH₃.This result suggests a new idea for developing a new electrolyte for potential-fixed electrochemical NH₃ sensors.
- potential-fixed electrochemical sensor,
- ammonia,
- dimethylformamide,
- n-butyl-methylimidazolium,
- ionic liquid
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Electrooxidation of NH₃ in Organic Solvent Containing Ionic Liquid