Abstract
Organic quinone materials offer a sustainable approach for electric energy storage, however, their intrinsic electrical insulation and dissolution into the electrolyte during cycling have hampered their wide applications. To tackle these two issues, we have synthesized a novel organic cathode material by anchoring a quinone compound, 2,3-dicyano-p-benzoquinone (DCBQ) with a high redox potential of 3.37 V vs. Li/Li+, onto carbon nanotubes (CNTs) (CNTs-DCBQ) through a facile ''grafting to'' method. The elaborate combination of excellent electron conductivity and large surface area of CNTs and stable and reversible redox reaction of DCBQ enables CNTs-DCBQ to deliver high reversible capacities of 206.9 and 175.8 mA h g-1 at a current density of 10 mA g-1 and also remarkable capacities of 110.2 and 82.1 mA h g-1 at a higher current density of 200 mA g-1 with a capacity retention approaching 100% after 1000 cycles for lithium and sodium ion batteries, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 17888-17895 |
| Number of pages | 8 |
| Journal | Journal of Materials Chemistry A |
| Volume | 7 |
| Issue number | 30 |
| DOIs | |
| State | Published - 2019 |
Funding
This work was supported by the ORNL Laboratory-Directed Research and Development (LDRD) program. C. J. and S. D. were supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division. The electron microscopy work was performed through a user project at ORNL's Center for Nanophase Materials Sciences, which is a US Department of Energy Office of Science User Facility, and in part, using instrumentation within ORNL's materials Characterization Core provided by UT Battelle, LLC, under contract NO. DE-AC05-00OR22725 with the DOE. Calculations used the resources of the Compute and Data Environment for Science (CADES) at ORNL and of the National Energy Research Scientific Computing Center, which are supported by the Office of Science of the U.S. DOE under Contract No. DE-AC05-00OR22750 and DE-AC02-05CH11231, respectively. This work was supported by the ORNL Laboratory-Directed Research and Development (LDRD) program. C. J. and S. D. were supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division. The electron microscopy work was performed through a user project at ORNL's Center for Nanophase Materials Sciences, which is a US Department of Energy Office of Science User Facility, and in part, using instrumentation within ORNL's materials Characterization Core provided by UT Bat-telle, LLC, under contract NO. DE-AC05-00OR22725 with the DOE. Calculations used the resources of the Compute and Data Environment for Science (CADES) at ORNL and of the National Energy Research Scientic Computing Center, which are supported by the Office of Science of the U.S. DOE under Contract No. DE-AC05-00OR22750 and DE-AC02-05CH11231, respectively.
