@article{Tang2018, 
author = {Xiao Tang and Hao Liu and Dawei Su and Peter H. L. Notten and Guoxiu Wang},
title = {Hierarchical sodium-rich Prussian blue hollow nanospheres as high-performance cathode for sodium-ion batteries},
year = {2018},
journal = {Nano Research},
volume = {11},
number = {8},
pages = {3979-3990},
keywords = {sodium-rich, sodium iron hexacyanoferrate, hollow nanospheres, cathode, sodium-ion batteries},
url = {https://www.sciopen.com/article/10.1007/s12274-018-1979-y},
doi = {10.1007/s12274-018-1979-y},
abstract = {Recently, Prussian blue and its analogues (PBAs) have attracted tremendous attention as cathode materials for sodium-ion batteries because of their good cycling performance, low cost, and environmental friendliness. However, they still suffer from kinetic problems associated with the solid-state diffusion of sodium ions during charge and discharge processes, which leads to low specific capacity and poor rate performances. In this work, novel sodium iron hexacyanoferrate nanospheres with a hierarchical hollow architecture have been fabricated as cathode material for sodium-ion batteries by a facile template method. Due to the unique hollow sphere morphology, sodium iron hexacyanoferrate nanospheres can provide large numbers of active sites and high diffusion dynamics for sodium ions, thus delivering a high specific capacity (142 mAh/g), a superior rate capability, and an excellent cycling stability. Furthermore, the sodium insertion/extraction mechanism has been studied by in situ X-ray diffraction, which provides further insight into the crystal structure change of the sodium iron hexacyanoferrate nanosphere cathode material during charge and discharge processes.}
}