4.6 Article

Iridium incorporated into deoxygenated hierarchical graphene as a high-performance cathode for rechargeable Li-O2 batteries

Journal

JOURNAL OF MATERIALS CHEMISTRY A
Volume 3, Issue 28, Pages 14556-14561

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta03482e

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Funding

  1. National Natural Science Foundation of China [51403209, 21406221]
  2. Youth Innovation Promotion Association (CAS)
  3. 100 Talents Program of Dalian Institute of Chemical Physics

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A novel Li-O-2 cathode was designed with a nanocrystal iridium catalyst functionalized on the purposely deoxygenated surfaces of hierarchical graphene. Due to the synergistic effect between the ORR/OER activity and deoxygenated porous supporter, this cathode exhibited excellent battery performance, cycling 150 times with a limited capacity of 1000 mA h g(-1) at a current density of 2000 mA g(-1).

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