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- Title
Tailoring Sodium Iron Hexacyanoferrate/Carbon Nanotube Arrays with 3D Networks for Efficient Sodium Ion Storage.
- Authors
He, Linxuan; Ruan, Lingfeng; Yao, Weilin; Cai, Chen; Chen, Zihang; Chang, Xinhao; Shi, Juntao; Liu, Tiancun; Shen, Shenghui; Yao, Zhujun; Yang, Yefeng
- Abstract
Sodium iron hexacyanoferrate (FeHCF), as Prussian blue, is a promising cathode for sodium ion batteries (SIBs) on account of its open framework structure. Here, FeHCF nanocubes anchored on carbon nanotube (CNT) arrays (FeHCF/CNTs-CC) as integrated electrodes for SIBs have been synthesized via the combination of chemical vapor deposition, immersion–oxidation, and single-iron-source methods. CNT arrays loaded on carbon cloth link FeHCF nanocubes and provide abundant pathways for electrons, as well as a large surface area for sodium ion exchange at the surface of the electrode and electrolyte to facilitate electrochemical kinetics. With the assistance of CNT arrays, FeHCF/CNTs-CC display outstanding high-rate capabilities (135 mA h g−1/0.1 A g−1 and 90 mA h g−1/2 A g−1), and good cycling stability with a capacity retention of 85% after 1000 cycles at 0.5 A g−1.
- Subjects
SODIUM ions; CARBON nanotubes; CHEMICAL vapor deposition; CARBON fibers; SODIUM; PRUSSIAN blue
- Publication
Journal of Electronic Materials, 2023, Vol 52, Issue 6, p3517
- ISSN
0361-5235
- Publication type
Article
- DOI
10.1007/s11664-023-10337-6