Journal of Applied Electrochemistry

, Volume 21, Issue 1, pp 21–27 | Cite as

The electrochemical synthesis of aminonitriles I. H-cell studies with adiponitrile and azelanitrile

  • Y. Song
  • P. N. Pintauro


Adiponitrile and azelanitrile were electrochemically hydrogenated to their corresponding aminonitriles in a divided H-cell using Raney nickel powder as the cathode material. The effects of current, temperature, and solvent/supporting electrolyte composition on product selectivities were investigated. Syntheses of the fully hydrogenated diamine by-product increased with increasing current and solution temperature. When a 0.8 M adiponitrile/alcohol/water/ammonium actetate electrolyte was hydrogenated at temperatures of 35–45°C, 6-aminocapronitrile selectivities in the range of 79–97% and current efficiencies of 50–60% were obtained. The optimum applied current was 60 mA for each 2.5 g of catalyst (an apparent current density of 4.8 mA cm−2). For the case of azelanitrile, reaction selectivities for the partially hydrogenated 9-aminononanenitrile product ranged from 80–93%.


Ammonium Physical Chemistry Nickel Diamine Cathode Material 
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Copyright information

© Chapman and Hall Ltd. 1990

Authors and Affiliations

  • Y. Song
    • 1
  • P. N. Pintauro
    • 1
  1. 1.Department of Chemical EngineeringTulane UniversityNew OrleansUSA

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