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Electrolysis Separation of Hydrogen Isotopes Using Metallic Electrodes Coated with Graphene Nanoparticles

Separdar, Mahnaz | 2015

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 48295 (46)
  4. University: Sharif University of Technology
  5. Department: Energy Engineering
  6. Advisor(s): Otukesh, Mohammad; Sadjjadi, Sudeh
  7. Abstract:
  8. The most abundant source of deuterium, of course, is natural water. Other potential natural sources are natural gas and petroleum. Of these, natural water is by far the most significant. Until 1943, all the heavy water produced commercially was made by electrolysis. The largest single producer of heavy water was the Norsk Hydro Company, which operated the world's largest electrolytic hydrogen plant at Rjukan, Norway. In a detailed laboratory investigation of the effect of cell variables on the deuterium separation factor in electrolysis of water, Brun and co-workers [B13] have found that a: depends on the cathode material, electrolyte composition, and cell temperature, generally as follows. The separation factor is higher for an alkaline electrolyte than for an acid. With KOH, at 15"C, a pure iron cathode gave the highest value reported, 13.2. The separation factor for mild steel, the material used in most commercial electrolyzers, was 12.2. Values as low as 5 were reported for tin, zinc, and platinized steel. At 25°C the separation factor with a steel cathode was 10.6, and at 75°C it had dropped to 7.1. In addition to high electroconductivity of graphen this material can help us to be one choices for cathode of electrolysis method
  9. Keywords:
  10. Heavy Water ; Graphene Oxide ; Graphene ; Isotope Separation ; Hydrogen Separation

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