Enrichment of 41K isotope in potassium formed on and in a rhenium electrode during plasma electrolysis in K2CO3/H2O and K2CO3/D2O solutions |
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| Authors: | T. Ohmori H. Yamada S. Narita T. Mizuno Y. Aoki |
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| Affiliation: | (1) Catalysis Research Center, Hokkaido University, Sapporo, 060-0811, Japan;(2) Faculty of Engineering, Iwate University, Morioka, 020-8551, Japan;(3) Department of Quantum Energy Engineering, Hokkaido University, Sapporo, 060-8621, Japan;(4) Center of Advanced Research of Energy Technology, Hokkaido University, Sapporo, 060-8621, Japan |
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| Abstract: | It was found that potassium forms on rhenium electrodes during plasma electrolysis in K2CO3/H2O and K2CO3/D2O solutions, and the new potassium has unnatural isotopic ratios. The isotope 41K increases from the natural abundance, 6.7%, to as much as 32–37%. The percentage of 41K in the potassium contamination in a rhenium electrode before electrolysis was close to the natural isotopic abundance (6.7%). This result suggests that the 41K was enriched by some unknown process connected with a vigorous discharge of plasma electrolysis. |
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| Keywords: | Potassium-41 plasma electrolysis rhenium electrode |
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