Electrochemical Properties and Ex Situ Study of Sodium Intercalation Cathode P2/P3-NaNi1/3Mn1/3Co1/3O2
In recent work, P2/P3-NaNi1/3Mn1/3Co1/3O2 (NaNMC) was obtained by the sol-gel process followed by calcination of the precursor at 900°C for 12 h. The electrochemical properties of NaNMC were investigated in the voltage range of 2.0–4.0 V. The material exhibited an initial discharge capacity of 107 m...
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Wiley
2021-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2021/9492571 |
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| author | Minh Le Nguyen Hoang Van Nguyen Man Van Tran Phung My Loan Le |
| author_facet | Minh Le Nguyen Hoang Van Nguyen Man Van Tran Phung My Loan Le |
| author_sort | Minh Le Nguyen |
| collection | DOAJ |
| description | In recent work, P2/P3-NaNi1/3Mn1/3Co1/3O2 (NaNMC) was obtained by the sol-gel process followed by calcination of the precursor at 900°C for 12 h. The electrochemical properties of NaNMC were investigated in the voltage range of 2.0–4.0 V. The material exhibited an initial discharge capacity of 107 mAh·g−1 and good capacity retention of 82.2% after 100 cycles. Ex situ XRD performance showed that the P3-phase transformed from the P3- to O1-phase and vice versa, while the P2-phase remained stable during the sodium intercalation. The kinetic of sodium intercalation of NaNMC upon reversible Na+ insertion/deinsertion was evaluated via a Galvanostatic Intermittence Titration Technique (GITT) and Electrochemical impedance spectroscopy (EIS). The diffusion coefficients of Na+ ion deduced from the GITT curve have a broad distribution ranging from 10−10 to 10−11 cm2·s−1 for the charging/discharging process. Besides, the evolution of diffusion coefficient and charge transfer resistance is consistent with the complex phase transition generally observed in sodium layered oxides. |
| format | Article |
| id | doaj-art-ba7631f38c8944569938f73098f6e380 |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
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| series | Journal of Chemistry |
| spelling | doaj-art-ba7631f38c8944569938f73098f6e3802025-02-03T05:43:46ZengWileyJournal of Chemistry2090-90632090-90712021-01-01202110.1155/2021/94925719492571Electrochemical Properties and Ex Situ Study of Sodium Intercalation Cathode P2/P3-NaNi1/3Mn1/3Co1/3O2Minh Le Nguyen0Hoang Van Nguyen1Man Van Tran2Phung My Loan Le3Applied Physical Chemistry Laboratory (APCLAB), Faculty of Chemistry, VNUHCM-University of Science, Ho Chi Minh City, VietnamApplied Physical Chemistry Laboratory (APCLAB), Faculty of Chemistry, VNUHCM-University of Science, Ho Chi Minh City, VietnamApplied Physical Chemistry Laboratory (APCLAB), Faculty of Chemistry, VNUHCM-University of Science, Ho Chi Minh City, VietnamApplied Physical Chemistry Laboratory (APCLAB), Faculty of Chemistry, VNUHCM-University of Science, Ho Chi Minh City, VietnamIn recent work, P2/P3-NaNi1/3Mn1/3Co1/3O2 (NaNMC) was obtained by the sol-gel process followed by calcination of the precursor at 900°C for 12 h. The electrochemical properties of NaNMC were investigated in the voltage range of 2.0–4.0 V. The material exhibited an initial discharge capacity of 107 mAh·g−1 and good capacity retention of 82.2% after 100 cycles. Ex situ XRD performance showed that the P3-phase transformed from the P3- to O1-phase and vice versa, while the P2-phase remained stable during the sodium intercalation. The kinetic of sodium intercalation of NaNMC upon reversible Na+ insertion/deinsertion was evaluated via a Galvanostatic Intermittence Titration Technique (GITT) and Electrochemical impedance spectroscopy (EIS). The diffusion coefficients of Na+ ion deduced from the GITT curve have a broad distribution ranging from 10−10 to 10−11 cm2·s−1 for the charging/discharging process. Besides, the evolution of diffusion coefficient and charge transfer resistance is consistent with the complex phase transition generally observed in sodium layered oxides.http://dx.doi.org/10.1155/2021/9492571 |
| spellingShingle | Minh Le Nguyen Hoang Van Nguyen Man Van Tran Phung My Loan Le Electrochemical Properties and Ex Situ Study of Sodium Intercalation Cathode P2/P3-NaNi1/3Mn1/3Co1/3O2 Journal of Chemistry |
| title | Electrochemical Properties and Ex Situ Study of Sodium Intercalation Cathode P2/P3-NaNi1/3Mn1/3Co1/3O2 |
| title_full | Electrochemical Properties and Ex Situ Study of Sodium Intercalation Cathode P2/P3-NaNi1/3Mn1/3Co1/3O2 |
| title_fullStr | Electrochemical Properties and Ex Situ Study of Sodium Intercalation Cathode P2/P3-NaNi1/3Mn1/3Co1/3O2 |
| title_full_unstemmed | Electrochemical Properties and Ex Situ Study of Sodium Intercalation Cathode P2/P3-NaNi1/3Mn1/3Co1/3O2 |
| title_short | Electrochemical Properties and Ex Situ Study of Sodium Intercalation Cathode P2/P3-NaNi1/3Mn1/3Co1/3O2 |
| title_sort | electrochemical properties and ex situ study of sodium intercalation cathode p2 p3 nani1 3mn1 3co1 3o2 |
| url | http://dx.doi.org/10.1155/2021/9492571 |
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