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Volume 7, Issue 4
  • ISSN: 0032-1400


In this article the performance of thermal diffusion cells extracting pure hydrogen from mixed gas streams is discussed and the relationships between gas quality, output and extraction efficiency are summarised for convenience in the form of a graph applicable to any silver-palladium unit. Small quantities of ultra-pure hydrogen can also be generated by electrolytic diffusion, and the characteristics of a small prototype electrolytic cell are described and possible applications suggested.


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  • Article Type: Research Article
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