Progress of Cryogenics and Isotopes Separation , ISSN: 1582-2575
2012, Volume 15, Issue 2

Experiments Regarding the Effects of Isotopic Separation in PEM Electrolysers

Mariana Iliescu * , Mihai Varlam , Roxana Elena Ionete , Mihai Culcer , Mihai Balan

National Institute for Research and Development for Cryogenics and Isotopic Technologies - ICIT Rm. Valcea, Uzinei Street no. 4, P.O. Box Raureni 7, 240050, Ramnicu Valcea, Romania

*Corresponding author: Mariana Iliescu, e-mail:

Published: October 2012


The paper deals with the first experiments conducted in the National Center for Hydrogen and Fuel Cell, in order to reveal the isotope separation effect in water electrolysis. Four water compositions having deuterium content in the range of natural (144 ppm) to 2%, were used to feed a PEM electrolizer, and the deuterium content of the evolving hydrogen was analyzed, revealing a slightly depletion.


PEM electrolyzer, water electrolysis, isotope separation.

Tag search PEM electrolyzer water electrolysis isotope separation