@article{Li2019, 
author = {Yanqiang Li and Huiyong Huang and Siru Chen and Xin Yu and Chao Wang and Tingli Ma},
title = {2D nanoplate assembled nitrogen doped hollow carbon sphere decorated with Fe3O4 as an efficient electrocatalyst for oxygen reduction reaction and Zn-air batteries},
year = {2019},
journal = {Nano Research},
volume = {12},
number = {11},
pages = {2774-2780},
keywords = {oxygen reduction reaction, Zn-air battery, Fe3O4, N doping, hollow microsphere},
url = {https://www.sciopen.com/article/10.1007/s12274-019-2512-7},
doi = {10.1007/s12274-019-2512-7},
abstract = {Designing a highly efficient non-precious based oxygen reduction reaction (ORR) electrocatalyst is critical for the commercialization of various sustainable energy storage and conversion devices such as metal-air batteries and fuel cells. Herein, we report a convenient strategy to synthesis Fe3O4 embedded in N doped hollow carbon sphere (NHCS) for ORR. What's interesting is that the carbon microsphere is composed of two-dimensional (2D) nanoplate that could provide more exposed active sites. The usage of solid ZnO nanowires as zinc source is crucial to obtain this structure. The Fe3O4@NHCS-2 exhibits better catalytic activity and durability than the commercial Pt/C catalyst. Moreover, it further displays high-performance of Zn-air batteries as a cathode electrocatalyst with a high-power density of 133 mW·cm-2 and high specific capacity of 701 mA·h·g-1. The special hollow structure composed 2D nanoplate, high surface area, as well as synergistic effect between the high active Fe3O4 nanoparticles and N-doped matrix endows this outstanding catalytic activity. The work presented here can be easily extended to prepare metal compounds decorated carbon nanomaterials with special structure for a broad range of energy storage and conversion devices.}
}