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Portugaliae Electrochimica Acta
versão impressa ISSN 0872-1904
Port. Electrochim. Acta v.27 n.6 Coimbra 2009
Study of Electrocatalytical Reduction of Nitrate on Copper Electrode
H. Massaï,1,2B.B. Loura,3M.J. Ketcha,2 A. Chtaini1,*
1 Equipe dElectrochimie et des Matériaux Inorganiques, Université Sultan Moulay Slimane, Faculté des Sciences et Techniques, BP 523, Beni-Mellal, Morocco
2 Laboratoire de Chimie Physique et Théorique, Université Yaoundé1, Faculté des Sciences, BP 812, Yaoundé, Cameroun
3Laboratoire de Chimie Physique, Université de Ngaoundéré, Faculté des Sciences, BP 454, Ngaoundéré, Cameroun
Received 21 May 2009; accepted 23 November 2009
Abstract
This work aims to investigate the electro reduction of nitrate at copper elecrode in HClO4 medium by the linear sweep voltammetry and convuctivity measurement methods. Two charge transfer steps were detected, the first one corresponding to adsorption and reduction of nitrate to nitrite and the second step consists of reducing nitrate to monoxide of nitrogen.
Keywords: electroreduction, nitrate, copper, linear sweep voltametry, conductivity, square wave voltametry.
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*Corresponding author. E-mail address: chtainia@yahoo.fr