Citation: TU Xiao-Hua, CHU You-Qun, MA Chun-An. Electrochemical Behavior of Nitroaromatics on Pt Microelectrode in an Aprotic Medium[J]. Acta Physico-Chimica Sinica, ;2011, 27(09): 2148-2152. doi: 10.3866/PKU.WHXB20110909 shu

Electrochemical Behavior of Nitroaromatics on Pt Microelectrode in an Aprotic Medium

TU Xiao-Hua ^1,2,3 ,
CHU You-Qun ² ,
MA Chun-An ^2,

1.
1. College of Biological and Chemical Engineering, Jiaxing University, Jiaxing 314001, Zhejiang Province, P. R. China;
2. State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Department of Applied Chemistry, Zhejiang University of Technology, Hangzhou, 310032, P. R. China;
3. Key Laboratory of Clean Chemical Process of Jiaxing, Jiaxing 314001, Zhejiang Province, P. R. China

Received Date: 22 March 2011
Available Online: 7 July 2011
Fund Project: 国家基础研究重大项目前期研究专项(2003CCA01300) (2003CCA01300)国家自然科学基金(20376074)资助项目 (20376074)

N,N-dimethylformamide (DMF) and tetrabutyl ammonium perchlorate (TBAP) were used as a solvent and a supporting electrolyte, respectively. The working electrode was a platinum microelectrode, the auxiliary electrode was a large area platinum wire and the reference electrode was a saturated calomel electrode. The electrochemical behavior of nitroaromatics (NA) was studied by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The effects of scan rate, numbers of benzene rings and nitro groups on the electrochemical reduction of NA were investigated systematically. The results showed that the reaction of NA on the Pt microelectrode was a quasi-reversible process controlled by the diffusion of NA. We found that NA was more electrochemically reducible when it contained more nitro groups and the reduction peak current of the nitro group decreased in the presence of more benzene rings.
- Nitroaromatics,
- Microelectrode,
- Aprotic medium,
- Cyclic voltammetry,
- Electrochemical impedance spectroscopy
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