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Citation: MA Chun-An, CHEN Song, CHU You-Qun, MAO Xin-Biao. Electrochemical Reduction of Nitrobenzene in Ionic Liquid BMimBF₄-H₂O[J]. Acta Physico-Chimica Sinica, ;2007, 23(04): 575-580. doi: 10.3866/PKU.WHXB20070424 shu

Electrochemical Reduction of Nitrobenzene in Ionic Liquid BMimBF₄-H₂O

1.
State Key Laboratory of Green Chemistry Synthesis Technology, College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310032, P. R. China; Yancheng Institute of Technology, Yancheng 224002, Jiangsu Province, P. R. China

Received Date: 14 September 2006
Available Online: 15 March 2007

Nitrobenzene was electroreduced to azobenzene in ionic liquid BMimBF4-H2O on Pt electrode at room temperature. The concentrations of nitrobenzene and water in BMimBF4 had complicated influence on the peak potential and peak current of cyclic voltammogram. The results from cyclic voltammetry and constant-potential electrolysis experiments showed that the reaction was a two-molecule and three-step electrochemical process with 8 electrons transferred. In the reaction, anion radical arose in first step, 2 electrons were transferred in second step and accompanied with coupling reaction of radicals, 2 electrons were transferred in third step, and azobenzene was produced.
- Nitrobenzene; Ionic liquid; Water; Electroreduction
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Electrochemical Reduction of Nitrobenzene in Ionic Liquid BMimBF4-H2O

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Electrochemical Reduction of Nitrobenzene in Ionic Liquid BMimBF₄-H₂O