Hierarchically porous carbon cages synthesized through in situ migration of templates |
| |
Authors: | Qing Fang Wei Zhang Xinghua Chen Yuanjian Zhang Ming Hu |
| |
Affiliation: | State Key Laboratory of Precision Spectroscopy, School of Physics and Materials Science, East China Normal University, Shanghai 200241, China; Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China |
| |
Abstract: | In order to optimize mass transportation and exchange, nature creates hierarchically porous networks which are composed of multi-level branches. Although bottom-up templating methods have succeeded in fabrication of these kinds of hierarchically porous networks, the templates have to be assembled/ packed in advance, therefore, driving the fabrication process too complex. In this report, we presented that the hierarchically porous networks could be fabricated through migration of templates, which was similar to formation of rivers. During thermal pyrolysis of Prussian blue cages, the in situly generated iron oxides nanoparticles diffused and aggregated together to grow larger, and eventually moved outside from the porous carbons. The moving routes of the iron oxides became hierarchical channels in the obtained carbon cages. By using the porous carbon cages as electrode for Na-ion battery, a pseudocapacitor-type ion storage was investigated. |
| |
Keywords: | Hierarchical structures Hierarchically porous carbon Mobile templates Thermal pyrolysis Na-ion battery |
本文献已被 ScienceDirect 等数据库收录! |
| 点击此处可从《中国化学快报》浏览原始摘要信息 |
|
点击此处可从《中国化学快报》下载全文 |
|