NiCo2S4/CO3S4 heterogeneous double-shelled nanocages for high-performance electrochemical energy storage

作者：Ye, L. W.; Yuan, Y. F.^*; Wang, L. N.; Zhu, M.; Yin, S. M.; Chen, Y. B.; Guo, S. Y.

来源：Materials Letters, 2018, 229: 152-155.

DOI：10.1016/j.matlet.2018.07.005

• NiCo2S4/CO3S4
• Nanocages
• Microstructure
• Energy storage and conversion

Zeolitic imidazolate framework-67 (ZIF-67)-derived yolk-shelled ZIF-67/Ni-Co layered double hydroxides were further vulcanized, forming heterogeneous double-shelled cage-in-cage NiCo2S4/CO3S4. As-synthesized double-shelled nanocages were characterized by XRD, SEM and TEM. As active materials for water-based electrochemical energy storage devices, NiCo2S4/CO3S4 showed relatively high discharge capacity and cycling stability, large current adaptability and reversibility. These could be due to the cage-in-cage hollow nanostructure and high electrochemical activity of transition metal sulfide.

• 出版日期2018-10-15
• 单位浙江理工大学