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Titanium-Anthraquinone Material as a New Design Approach for Electrodes in Aqueous Rechargeable Batteries

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  • Franklin D. R. Maharaj

    (Department of Chemistry, University of Colorado, Boulder, CO 80309, USA)

  • Michael P. Marshak

    (Department of Chemistry, University of Colorado, Boulder, CO 80309, USA
    Renewable and Sustainable Energy Institute, Boulder, CO 80309, USA)

Abstract

The need for expanded energy storage motivates material development for scalable aqueous secondary batteries. The combination of transition metals with redox-active organics represents a new approach to functional material design. Here, we detail the synthesis of titanium(IV) 1,8-dihydroxyanthraquinone (Ti(1,8-DHAQ) 2 ) as a novel redox-active material and demonstrate its use as a negative electrode in an aqueous battery. This one-pot synthesis results in amorphous micron-scale particles with titanium binding directly to the carbonyl feature as evidenced by scanning electron microscopy and infrared spectroscopy. When assembled in a coin cell with a lithium manganese oxide positive electrode, the active material can be electrochemically cycled with a charge density of 40 mAh/g at 1.1 V. This represents a new method of creating simple and scalable electrodes using metal-organic materials for versatile energy storage applications.

Suggested Citation

  • Franklin D. R. Maharaj & Michael P. Marshak, 2020. "Titanium-Anthraquinone Material as a New Design Approach for Electrodes in Aqueous Rechargeable Batteries," Energies, MDPI, vol. 13(7), pages 1-11, April.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:7:p:1722-:d:341454
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