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Research on Chemical Intermediates

, Volume 32, Issue 5, pp 585–594 | Cite as

Reduction of nitrate ion using hydrogen permeating Pd foil electrodes

  • Megumi Koizumi
  • Masashi Tanaka
  • Yoshinori Nishiki
  • Masao Sekimoto
  • Tsuneto Furuta
  • Hiroshi Inoue
  • Chiaki Iwakura
Article

Abstract

The successive electrochemical reduction system using hydrogen-permeable Pd foil electrodes with Pd black catalyst was applied to reduction of nitrate ion. It was revealed that the second metals co-deposited to Pd black catalyst showed an excellent selectivity for decomposition of NO 3 to N2, and was stable for at least 200 days. This system employing a compact and a simple electrolysis cell is expected to be an alternative or a supplement to conventional biological treatments for nitrate removal.

Keywords

Pd foil electrode electrochemical reduction long-term stability nitrate removal 

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Copyright information

© VSP 2006

Authors and Affiliations

  • Megumi Koizumi
    • 1
  • Masashi Tanaka
    • 1
  • Yoshinori Nishiki
    • 1
  • Masao Sekimoto
    • 1
  • Tsuneto Furuta
    • 1
  • Hiroshi Inoue
    • 2
  • Chiaki Iwakura
    • 2
  1. 1.Research and Development DepartmentPermelec Electrode Ltd.Fujisawa-city KanagawaJapan
  2. 2.Department of Applied Chemistry, College of EngineeringOsaka Prefecture UniversitySakai, OsakaJapan

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