Abstract
In order to investigate the electrode reaction of negative electrolyte, U(III)/U(IV), of the all-uranium redox-flow battery proposed by us, we investigated the magnetic susceptibility, spectroscopy and electrode reactions of U(III) and U(IV) complexes with N,N,N′,N′-tetramethylmalonamide (TMMA). The effective magnetic moment for the U(III) complex (1.95μB/atomU) is significantly smaller than the theoretical moment for free U3+ ion, and this may indicate the itinerant nature of U(III) due to the coordination of TMMA. In N,N-dimethylformamide (DMF), the energy levels due to f-f transitions was only slightly perturbed from those of uranium(III) perchlorate in DMF. The U(III)/U(IV) redox potential of U(III)-TMMA complex shifted negatively from that of uranium(III) perchlorate.
Original language | English |
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Pages (from-to) | 139-144 |
Number of pages | 6 |
Journal | Journal of Alloys and Compounds |
Volume | 418 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 2006 Jul 20 |
Keywords
- Effective magnetic moment
- Electrochemical investigation
- N,N,N′,N′-Tetramethylmalonamide
- Trivalent uranium
- f-f Transition
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry