@article{Gong2019, 
author = {Hao Gong and Tao Wang and Hairong Xue and Xueyi Lu and Wei Xia and Li Song and Songtao Zhang and Jianping He and Renzhi Ma},
title = {Spatially-controlled porous nanoflake arrays derived from MOFs: An efficiently long-life oxygen electrode},
year = {2019},
journal = {Nano Research},
volume = {12},
number = {10},
pages = {2528-2534},
keywords = {two-dimension metal-organic frameworks, mesoporous Co3O4, flexible oxygen electrode, lithium-oxygen batteries},
url = {https://www.sciopen.com/article/10.1007/s12274-019-2480-y},
doi = {10.1007/s12274-019-2480-y},
abstract = {The urgent expectation of the next-generation energy storage devices for electric vehicles has driven researchers' attention to the lithium-oxygen (Li-O2) batteries due to the satisfied specific energy density. Herein, spatially-controlled Co3O4 nanoflake arrays with three-dimensional- networked morphology are adopted as flexible and self-standing oxygen cathodes in Li-O2 batteries. The spinel-phase Co3O4 nanoflakes were converted from two-dimension metal-organic frameworks with abundant available channels and large specific surface area. The open-structure nanoflake arrays possess sufficient Li2O2/cathode contact interface, great bifunctional catalytic performance and adequate Li2O2 accommodation, leading to the enhanced electrochemical performance of the Li-O2 batteries. As expected, the binder-free porous Co3O4/CT cathode delivers a high capacity of 6, 509 mAh·g-1 (200 mA·g-1) and enhanced stability over 100 cycles (limited by 1, 000 mAh·g-1). In addition, pouch-type Li-O2 batteries were successfully designed and cycled with Co3O4/CT cathode as oxygen electrodes, demonstrating its potential application for flexible electronics and wearable energy storage devices.}
}