Trapped in the coordination sphere [electronic resource] : Nitrate ion transfer driven by the cerium(III/IV) redox couple
- Washington, D.C. : United States. Dept. of Energy. Office of Basic Energy Sciences, 2016. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
- Physical Description:
- pages 31,254-31,259 : digital, PDF file
- Additional Creators:
- Argonne National Laboratory, United States. Department of Energy. Office of Basic Energy Sciences, and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Redox-driven ion transfer between phases underpins many biological and technological processes, including industrial separation of ions. Here we investigate the electrochemical transfer of nitrate anions between oil and water phases, driven by the reduction and oxidation of cerium coordination complexes in oil phases. We find that the coordination environment around the cerium cation has a pronounced impact on the overall redox potential, particularly with regard to the number of coordinated nitrate anions. Our results suggest a new fundamental mechanism for tuning ion transfer between phases; by 'trapping' the migrating ion inside the coordination sphere of a redox-active complex. Here, this presents a new route for controlling anion transfer in electrochemically-driven separation applications.
- Published through SciTech Connect., 11/07/2016., "131263", Physical Chemistry Chemical Physics. PCCP (Print) 18 45 ISSN 1463-9076; PPCPFQ AM, and Ross J. Ellis; Mrinal K. Bera; Benjamin Reinhart; Mark R. Antonio.
- Funding Information:
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