NDLI: Experimental Study for HIx Concentration by Electro-Electrodialysis (EED) Cells in the Water Splitting Sulfur-Iodine Thermochemical Cycle

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Experimental Study for HIx Concentration by Electro-Electrodialysis (EED) Cells in the Water Splitting Sulfur-Iodine Thermochemical Cycle

Content Provider	Semantic Scholar
Author	Caputo, Giampaolo Balog, Irena Giaconia, Alberto Sau, Sachinarrdan Pozio, Alfonso
Copyright Year	2019
Abstract	The efficiency of HI concentration/separation from a HIx solution, (mixture of HI/H2O/I2) represents a crucial factor in the sulfur-iodine thermochemical water splitting process for hydrogen production. In this paper, an experimental study on HI cathodic concentration in HIx solution using stacked electro-electrodialysis (EED) cells was carried out under the conditions of 1 atm and at three different temperature (25, 55 and 85 °C) and using a current density of 0.10 A/cm2. Results showed that an increase in HI concentration can be obtained under certain conditions. The apparent transport number (t+) in all the experiments was very close to 1, and the electro-osmosis coefficient (β) changed in a range of 1.08–1.16. The tests showed a detectable, though slow, increase in both the anodic iodine and cathodic hydriodic acid concentrations.
Starting Page	50
Ending Page	50
Page Count	1
File Format	PDF HTM / HTML
DOI	10.3390/chemengineering3020050
Volume Number	3
Alternate Webpage(s)	http://openarchive.enea.it/bitstream/handle/10840/7531/RT-2016-10-ENEA.pdf?sequence=1
Alternate Webpage(s)	https://res.mdpi.com/ChemEngineering/ChemEngineering-03-00050/article_deploy/ChemEngineering-03-00050.pdf?attachment=1&filename=
Alternate Webpage(s)	https://doi.org/10.3390/chemengineering3020050
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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