Benefits of molybdenum substitution in Na3V2(PO4)3 cathode material for sodium ion batteries: A first principles study
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my.unimap-696082021-02-09T01:25:11Z Benefits of molybdenum substitution in Na3V2(PO4)3 cathode material for sodium ion batteries: A first principles study Mohamad Firdaus, Rosle Fadhlul Wafi, Badrudin Siti Munirah, Hasanaly Siti Aminah, Mohd Noor Mohamad Fariz, Mohamad Taib Muhd Zu Azhan, Yahya mzay@upnm.edu.my Cathode material Density functional theory Electronic properties Sodium-Ion battery Structural properties Link to publisher's homepage at http://ijneam.unimap.edu.my The first principles study on the structural and electronic properties of Na3V2(PO4)3 (NVP) was performed using first principles calculation. Results on lattice constant, Mulliken analysis and density of state are discussed in this paper. Overall, lattice parameter calculation obtained using GGA-PBEsol functional is in better agreement with the experimental result. Based on atomic population, Na2 is expected to be sodiated first compared to Na1. From the bond order calculation, it was shown that the P-O bond provided thermal stability and contributed to the long-life cycle of the battery. The Na-O bond showed that the ionic character is essential for ion migration. From the Density of state, the overlapping between O 2p and P 3p orbitals forms a strong bond which supports the bond order result. In this study, the calculated band gap value was 2.06 eV and which then decreased to 0.4 eV upon desodiation. The effect of Molybdenum (Mo) substitution on NVP was also studied using virtual crystal approximation method. The volume of NVP increases with increasing amount of Mo6+ substitution which eases the migration of ions and this will be beneficial to the electrochemical performance. Thus, this substituted NVP with Mo (Na3V2-xMox(PO4)3) cathode material could be a potential candidate for sodium ion batteries. 2021-02-09T01:25:11Z 2021-02-09T01:25:11Z 2020-12 Article International Journal of Nanoelectronics and Materials, vol.13(Special Issue), 2020, pages 235-242 1985-5761 (Printed) 1997-4434 (Online) http://dspace.unimap.edu.my:80/xmlui/handle/123456789/69608 en NANOSYM, 2019; Universiti Malaysia Perlis (UniMAP) |
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Cathode material Density functional theory Electronic properties Sodium-Ion battery Structural properties |
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Cathode material Density functional theory Electronic properties Sodium-Ion battery Structural properties Mohamad Firdaus, Rosle Fadhlul Wafi, Badrudin Siti Munirah, Hasanaly Siti Aminah, Mohd Noor Mohamad Fariz, Mohamad Taib Muhd Zu Azhan, Yahya Benefits of molybdenum substitution in Na3V2(PO4)3 cathode material for sodium ion batteries: A first principles study |
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Link to publisher's homepage at http://ijneam.unimap.edu.my |
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mzay@upnm.edu.my |
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mzay@upnm.edu.my Mohamad Firdaus, Rosle Fadhlul Wafi, Badrudin Siti Munirah, Hasanaly Siti Aminah, Mohd Noor Mohamad Fariz, Mohamad Taib Muhd Zu Azhan, Yahya |
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Article |
| author |
Mohamad Firdaus, Rosle Fadhlul Wafi, Badrudin Siti Munirah, Hasanaly Siti Aminah, Mohd Noor Mohamad Fariz, Mohamad Taib Muhd Zu Azhan, Yahya |
| author_sort |
Mohamad Firdaus, Rosle |
| title |
Benefits of molybdenum substitution in Na3V2(PO4)3 cathode material for sodium ion batteries: A first principles study |
| title_short |
Benefits of molybdenum substitution in Na3V2(PO4)3 cathode material for sodium ion batteries: A first principles study |
| title_full |
Benefits of molybdenum substitution in Na3V2(PO4)3 cathode material for sodium ion batteries: A first principles study |
| title_fullStr |
Benefits of molybdenum substitution in Na3V2(PO4)3 cathode material for sodium ion batteries: A first principles study |
| title_full_unstemmed |
Benefits of molybdenum substitution in Na3V2(PO4)3 cathode material for sodium ion batteries: A first principles study |
| title_sort |
benefits of molybdenum substitution in na3v2(po4)3 cathode material for sodium ion batteries: a first principles study |
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Universiti Malaysia Perlis (UniMAP) |
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2021 |
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http://dspace.unimap.edu.my:80/xmlui/handle/123456789/69608 |
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1698698629400756224 |
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13.214268 |