Preparation of Nanostructural MnO-porous Graphene Hybrid Material by Thermally-driven Etching of MnO for Lithium-Air Batteries

Authors

Juan YANG, Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Science, Lanzhou 730000;Follow
Jun-wei LANG, Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Science, Lanzhou 730000;
Peng ZHANG, Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Science, Lanzhou 730000;
Bao LIU, Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Science, Lanzhou 730000;

Corresponding Author

Juan YANG(yangjuan@licp.cas.cn)

Abstract

In this paper, improving the surface morphology of graphene(GNSs) as designed concept. we describe a MnO/porous-graphene(MnO-PGNSs) was synthesized by a simple site-localized Mn²⁺ on GO (Mn-GO) by charge adsorption and then driving by high-temperature calcination, growing MnO nanoparticles and etching GNSs achieved on step. And Then focus on the key factors of influenced the etch hole formation are analyzed, founded the dispersion of Mn-GO; layer number of GO and calcination temperature also affected the formation of holes. In addition, the MnO-PGNSs as lithium-air battery cathode exhibits high reversible capacity compared with GNSs and PGNs and it is able to deliver storage capacity as high as 5100 mAh·g^-1 at 50 mA·g^-1.

Graphical Abstract

Keywords

GO, MnO, MnO-PGNSs, lithium-air battery

DOI Link

https://doi.org/10.13208/j.electrochem.180626

Publication Date

2019-10-28

Online Available Date

2018-08-28

Revised Date

2018-07-29

Received Date

2018-06-26

Recommended Citation

Juan YANG, Jun-wei LANG, Peng ZHANG, Bao LIU. Preparation of Nanostructural MnO-porous Graphene Hybrid Material by Thermally-driven Etching of MnO for Lithium-Air Batteries[J]. Journal of Electrochemistry, 2019 , 25(5): 621-630.
DOI: 10.13208/j.electrochem.180626
Available at: https://jelectrochem.xmu.edu.cn/journal/vol25/iss5/9