Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 3, Issue 36, Pages 18395-18399Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta04374c
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Funding
- Australian Research Council (ARC) under a Linkage Project [LP120200432]
- Discovery Project [DP140100401]
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A B4C nanowire as a novel bifunctional electrocatalyst was synthesized using carbon nanotubes as the template. Because of the highly efficient catalytic activity, together with the abundant catalytic sites in the B4C nanowire and carbon nanotube composite, this material exhibits great catalytic activity as an efficient bifunctional catalyst for the oxygen reduction and evolution reactions in lithium oxygen batteries. Excellent cycling performance under capacity limited mode is demonstrated, in which the terminal discharge voltage is higher than 2.2 V after 120 cycles at a current density of 0.4 mA cm(-2). This novel electrocatalyst is a promising bifunctional electrocatalyst for lithium oxygen batteries, with high energy density, favorable rechargeability, and high round-trip efficiency (76%).
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