Ultrapure Hydrogen

  • Author: ChemViews
  • Published Date: 15 July 2010
  • Source / Publisher: ChemSusChem/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
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Claudio Bianchini, Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), Sesto Fiorentino, Italy, and co-workers report a method to produce both hydrogen and chemicals in a single process making use of electricity provided by renewable energy sources.

Ultrapure hydrogen is produced in an alkaline polymeric membrane electrolyzer through selectively oxidation of a renewable alcohol to the corresponding carboxylate at the anode. The low amount of energy required for this reaction - about one-third the energy required by a traditional water electrolyzer - allows the electrolyzer to be self-sustainable when combined with a hydrogen fuel cell.

The realization of such a process will provide ultrapure hydrogen and, at the same time, lead to the sustainable production of industrially relevant feedstocks from biomasses.

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