Characterization of vanadium ion uptake in sulfonated diels alder poly(phenylene) membranes [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 2015.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
- Physical Description:
- pages A5,229-A5,235 : digital, PDF file
- Additional Creators:
- Oak Ridge National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Sulfonated diels alder poly(phenylene) (SDAPP), alternative aromatic hydrocarbon membranes for vanadium redox flow batteries (VRFBs) are characterized using electron paramagnetic resonance (EPR). Membranes soaked in sulfuric acid and vanadyl sulfate are analyzed to determine the membrane environment in which the vanadyl ion (VO2+) diffuses in the membranes. These results are compared to Nafion 117 membranes. In contrast to Nafion, the VO2+ in SDAPP membranes exists in two different environments. The results of analysis of rotational diffusion determined from fits the EPR spectral lineshapes in comparison with previously reported permeation studies and measurements of partitioning functions reported here suggest that the diffusion pathways in SDAPP are very different than in Nafion.
- Report Numbers:
- E 1.99:1234345
- Published through SciTech Connect.
Journal of the Electrochemical Society 163 1 ISSN 0013-4651 AM
Lawton, Jamie [University of Tennessee, Knoxville (UTK)]; Jones, Amanda [University of Tennessee, Knoxville (UTK)]; Tang, Zhijiang [ORNL]; Lindsey, Melanie [University of Tennessee, Knoxville (UTK)]; Zawodzinski, Thomas A [ORNL].
- Funding Information:
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