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A novel method of hydrogen generation by water electrolysis using an ultra-short-pulse power supply


A novel method of hydrogen generation by water electrolysis using ultra-short-pulse power supply is demonstrated. The ultra-short power supply consists of a static induction thyristor (SIThy) and a specific circuit which is called the inductive energy storage (IES) circuit. It was found that by using an ultra-short pulse with the width of 300 ns, electrolysis takes place with a mechanism dominated by electron transfer, which is different from the conventional diffusion limiting process in DC electrolysis.

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We thank Messrs S. Ohno and T. Inaba for their encouragement of this work, Mrs K. Matsuhiro, Y. Imanishi and S. Tange for their helpful discussion, and Mr M. Imaeda for his experimental help.

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Correspondence to Osamu Oda.

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Shimizu, N., Hotta, S., Sekiya, T. et al. A novel method of hydrogen generation by water electrolysis using an ultra-short-pulse power supply. J Appl Electrochem 36, 419–423 (2006).

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  • hydrogen generation
  • inductive energy storage circuit
  • static induction thyristor
  • ultra-short pulse
  • water electrolysis