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Titanium Activation in Prussian Blue Based Electrodes for Na-ion Batteries: A Synthesis and Electrochemical Study
| Content Provider | MDPI |
|---|---|
| Author | Li, Min Mullaliu, Angelo Passerini, Stefano Giorgetti, Marco |
| Copyright Year | 2021 |
| Description | Sodium titanium hexacyanoferrate (TiHCF, Na0.86Ti0.73[Fe(CN)6]·3H2O) is synthesized by a simple co-precipitation method in this study. Its crystal structure, chemical composition, and geometric/electronic structural information are investigated by X-ray powder diffraction (XRPD), microwave plasma-atomic emission spectroscopy (MP-AES), and X-ray absorption spectroscopy (XAS). The electroactivity of TiHCF as a host for Li-ion and Na-ion batteries is studied in organic electrolytes. The results demonstrate that TiHCF is a good positive electrode material for both Li-ion and Na-ion batteries. Surprisingly, however, the material shows better electrochemical performance as a Na-ion host, offering a capacity of 74 mAh g−1 at C/20 and a 94.5% retention after 50 cycles. This is due to the activation of Ti towards the redox reaction, making TiHCF a good candidate electrode material for Na-ion batteries. |
| Starting Page | 5 |
| e-ISSN | 23130105 |
| DOI | 10.3390/batteries7010005 |
| Journal | Batteries |
| Issue Number | 1 |
| Volume Number | 7 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-01-07 |
| Access Restriction | Open |
| Subject Keyword | Batteries Inorganic Chemistry Titanium Hexacyanoferrate Cathode Material Na/li-ion Batteries |
| Content Type | Text |
| Resource Type | Article |
