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1982 (1)
1981 (1)
1Author    Elli Theodoridou, Dimitrios JannakoudakisRequires cookie*
 Title    Elektrochemisches Verhalten der Nitrophenole und ihrer Reduktionsprodukte an Graphitelektroden Electrochemical Behavior of the Nitrophenols and Their Reduction Products at Graphite Electrodes  
 Abstract    The electrochemical reduction of the isomeric nitrophenols at graphite electrodes is investigated in aqueous solutions with pH = 1-13 and is compared with the electro-chemical oxidation of their reduction products. o-Nitrophenol and jo-nitrophenol are reduced to the corresponding amines, as the observed oxidation peaks in their cyclic voltammograms can be simulated by those of o-and p-aminophenol. m-Nitrophenol is reduced to m -hydroxylaminophenol, as its oxidation peak appears at much more negative » potential than that of m-aminophenol, within the potential range of the oxidation of phenylhydroxylamine. The pH-dependence of the reduction potentials of the nitrophenols at the graphite electrodes is discussed in comparison with that at a hanging mercury drop electrode. 
  Reference    Z. Naturforsch. 36b, 840—845 (1981); eingegangen am 12. Februar 1981 
  Published    1981 
  Keywords    Cyclic Yoltammetry, Nitrophenols, Graphite Electrodes 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0840.pdf 
 Identifier    ZNB-1981-36b-0840 
 Volume    36 
2Author    Elli Theodoridou, Pantelis Karabinas, Dimitrios JannakoudakisRequires cookie*
 Title    elektrochemische Reduktion von l-Nitro-2-naphthol an Kohlenstoff-Faser-Elektroden Influence of the Adsorption on the Electrochemical Reduction of 1-Nitro-2-naphthol at Carbon Fibre Electrodes  
 Abstract    In the electrochemical reduction of 1-nitro-2-naphthol at carbon fibre electrodes an adsorp-tion peak cathodic of the diffusion-controlled peak is obtained, as it happens in processes involving a strong adsorption of the reactant. This adsorption peak appears when the elec-trodes remain at positive potentials (+ 1 V) in acidic solutions of the nitronaphthol and its interpretation is corroborated by its scan rate and concentration dependence. Im Rahmen einer früheren Arbeit [1], über den Mechanismus der elektrochemischen Reduktion von 
  Reference    (Z. Naturforsch. 37b, 112—114 [1982]; eingegangen am 14. September 1981) 
  Published    1982 
  Keywords    Cyclic Yoltammetry, Carbon Fibre Electrodes, Adsorption Effects, l-Nitro-2-naphthol 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0112_n.pdf 
 Identifier    ZNB-1982-37b-0112_n 
 Volume    37