期刊
NANOSCALE
卷 5, 期 23, 页码 11845-11849出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3nr04502a
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资金
- POSCO-RIST research program [2012K110]
beta-FeOOH nanorod (NR) catalysts prepared by ultrasonic-irradiated chemical synthesis enabled lithium-air cells to have high round-trip efficiency and extremely low overpotential as well as an outstanding rate capability. Good catalytic activities of the beta-FeOOH NR bundle could be ascribed to its crystal structure, which consists of 2 x 2 tunnels formed by edge-and corner-sharing Fe(O,OH)(6) octahedra as well as to its one-dimensional morphology, which makes the configured electrode highly porous, indicating that the -OOH-based catalyst can be a good substitute for oxide-base catalysts in lithium-air batteries. The ultrasonic-irradiated chemical synthesis suggested here may be a good solution to optimize the morphology of catalyst materials for maximum catalytic activity.
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