@article{Yan2023, 
author = {Dong Yan and Shuhao Xiao and Xinyan Li and Jinxia Jiang and Qiyuan He and Hanchao Li and Jiaqian Qin and Rui Wu and Xiaobin Niu and Jun Song Chen},
title = {NiS2/FeS Heterostructured Nanoflowers for High-Performance Sodium Storage},
year = {2023},
journal = {Energy Material Advances},
volume = {4},
pages = {0012},
url = {https://www.sciopen.com/article/10.34133/energymatadv.0012},
doi = {10.34133/energymatadv.0012},
abstract = {Transition metal sulfides demonstrate attractive potential for sodium storage owing to their high theoretical specific capacity and high reserve. However, the low conductivity and volume expansion deteriorate their high-rate performance and cycling stability. In this work, we construct NiS2/FeS heterostructure by growing Ni-based layered double hydroxide nanosheets on Fe-based Prussian Blue nanocrystals followed by gaseous sulfurization, giving rise to flower-like NiS2/FeS nanoparticles. The as-prepared nanocomposite exhibits good rate performance of 156 mAh g−1 at 50 A g−1 and long cycle life of 606 mAh g−1 at 5 A g−1 after 1,000 cycles, which are superior to the heterostructure-free counterpart of NiS2 and FeS. Density functional theory calculation further verifies that the enhanced electrochemical performance of NiS2/FeS is due to the existence of interface derived from the heterostructure.}
}