Development of Tetraarylphosphonium/Tetrakis(pentafluorophenyl)borate (TAPR/TFAB) salts as non-aqueous electrolytes for organic redox flow batteries

• ZeAndra Whitfield

  Albany State University

  Author

• Janese Bibbs

  Albany State University

  Author

• Ghislain R Mandouma

  Albany State University, USA

  Author

• John Miller

  Brookhaven National Laboratory

  Author

• Matt Bird

  Brookhaven National Laboratory

  Author

• Tomoyasu Mani

  University of Connecticut , University of Connecticut

  Author

• Reid Wilson

  University of Connecticut , University of Connecticut

  Author

A series of weakly coordinating cations/anions (TAPR/TFAB) ion pairs are, herein, being proposed as non-aqueous electrolytes for high capacity ORFBs. These were accessed via a Palladiumcatalyzed approach followed by the simple filtration/isolation of the product. These substituted tetraarylphosphonium/tetrakis(pentafluorophenyl)borate salts 1-4 where the substituents are a pmethoxy (1), a 3,4-dimethoxy (2), a p-phenyl (3), and a p-trimethylsilylacetylene (TMSA) (4) have potential use in several industries owing to their unique solubility in low polarity solvents. These salts constitute a new class of molecular ion pairs which can promote charge dissociation even in low polarity solvents because of their large size and bulkiness. The result being an increased conductivity in those media that can be useful for electrochemistry, advances in catalysis, battery technology, petroleum handling etc. This work supports the national security goal of fostering the development of affordable, clean and renewable energy source and storage.

1. ZeAndra Whitfield, Albany State University

   Department of Chemistry and Forensic Science

2. Janese Bibbs, Albany State University

   Department of Chemistry and Forensic Science

3. Ghislain R Mandouma, Albany State University, USA

   Department of Natural Sciences

4. John Miller, Brookhaven National Laboratory

   Chemistry Division

5. Matt Bird, Brookhaven National Laboratory

   Chemistry Division

6. Tomoyasu Mani, University of Connecticut, University of Connecticut

   Department of Chemistry

7. Reid Wilson, University of Connecticut, University of Connecticut

   Department of Chemistry

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Copyright (c) 2019 ZeAndra Whitfield, Janese Bibbs, Ghislain R Mandouma, John Miller, Matt Bird, Tomoyasu Mani, Reid Wilson

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