TY - JOUR AU - 이윤정 DA - 2016/05 PY - 2016 UR - http://pubs.rsc.org/en/Content/ArticleLanding/2016/TA/C5TA10550A#!divAbstract UR - https://repository.hanyang.ac.kr/handle/20.500.11754/71066 AB - Despite the extremely high theoretical specific capacity of lithium oxygen (Li-O-2) electrochemistry, low energy efficiency resulting from the large potential gap between the discharge and charge makes this system impractical. In this report, an iron cobalt bimetal decorated carbon nanotube (FeCo-CNT) composite was synthesized as a catalytic air cathode material for Li-O-2 batteries. An Li-O-2 battery using FeCo-CNT air electrodes exhibited higher efficiency (72.15%) than that of pristine CNTs (62.57%) as well as higher capacity (3600 mA h g(-1) vs. 1276 mA h g(-1)). Spectroscopic and electron microscopy analyses showed that the improved cell performances can be attributed to the catalytic effect of FeCo. As cost-effective non-noble metal catalysts, FeCo-CNTs demonstrated performance comparable to noble metal catalysts in Li-O-2 systems. PB - ROYAL SOC CHEMISTRY KW - LITHIUM-OXYGEN BATTERIES KW - REDUCED GRAPHENE OXIDE KW - AIR BATTERIES KW - PERFORMANCE KW - ELECTRODE KW - NANOPARTICLES KW - COMPOSITE KW - CELLS TI - Iron-cobalt bimetal decorated carbon nanotubes as cost-effective cathode catalysts for Li-O-2 batteries IS - 18 VL - 4 DO - 10.1039/c5ta10550a T2 - JOURNAL OF MATERIALS CHEMISTRY A ER -