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Electrochemical Properties of Na(0.66)V(4)O(10) Nanostructures as Cathode Material in Rechargeable Batteries for Energy Storage Applications
[Image: see text] We report the electrochemical performance of nanostructures of Na(0.66)V(4)O(10) as cathode material for rechargeable batteries. The Rietveld refinement of room-temperature X-ray diffraction pattern shows the monoclinic phase with C2/m space group. The cyclic voltammetry curves of...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2019
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6648861/ https://www.ncbi.nlm.nih.gov/pubmed/31460078 http://dx.doi.org/10.1021/acsomega.9b00105 |
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author | Saroha, Rakesh Khan, Tuhin S. Chandra, Mahesh Shukla, Rishabh Panwar, Amrish K. Gupta, Amit Haider, M. Ali Basu, Suddhasatwa Dhaka, Rajendra S. |
author_facet | Saroha, Rakesh Khan, Tuhin S. Chandra, Mahesh Shukla, Rishabh Panwar, Amrish K. Gupta, Amit Haider, M. Ali Basu, Suddhasatwa Dhaka, Rajendra S. |
author_sort | Saroha, Rakesh |
collection | PubMed |
description | [Image: see text] We report the electrochemical performance of nanostructures of Na(0.66)V(4)O(10) as cathode material for rechargeable batteries. The Rietveld refinement of room-temperature X-ray diffraction pattern shows the monoclinic phase with C2/m space group. The cyclic voltammetry curves of prepared half-cells exhibit redox peaks at 3.1 and 2.6 V, which are due to two-phase transition reaction between V(5+/4+) and can be assigned to the single-step deintercalation/intercalation of Na ion. We observe a good cycling stability with specific discharge capacity (measured vs Na(+)/Na) between 80 (±2) and 30 (±2) mAh g(–1) at current densities of 3 and 50 mA g(–1), respectively. The electrochemical performance of Na(0.66)V(4)O(10) electrode was also tested with Li anode, which showed higher capacity but decayed faster than Na. Using density functional theory, we calculate the Na vacancy formation energies: 3.37 eV in the bulk of the material and 2.52 eV on the (100) surface, which underlines the importance of nanostructures. |
format | Online Article Text |
id | pubmed-6648861 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-66488612019-08-27 Electrochemical Properties of Na(0.66)V(4)O(10) Nanostructures as Cathode Material in Rechargeable Batteries for Energy Storage Applications Saroha, Rakesh Khan, Tuhin S. Chandra, Mahesh Shukla, Rishabh Panwar, Amrish K. Gupta, Amit Haider, M. Ali Basu, Suddhasatwa Dhaka, Rajendra S. ACS Omega [Image: see text] We report the electrochemical performance of nanostructures of Na(0.66)V(4)O(10) as cathode material for rechargeable batteries. The Rietveld refinement of room-temperature X-ray diffraction pattern shows the monoclinic phase with C2/m space group. The cyclic voltammetry curves of prepared half-cells exhibit redox peaks at 3.1 and 2.6 V, which are due to two-phase transition reaction between V(5+/4+) and can be assigned to the single-step deintercalation/intercalation of Na ion. We observe a good cycling stability with specific discharge capacity (measured vs Na(+)/Na) between 80 (±2) and 30 (±2) mAh g(–1) at current densities of 3 and 50 mA g(–1), respectively. The electrochemical performance of Na(0.66)V(4)O(10) electrode was also tested with Li anode, which showed higher capacity but decayed faster than Na. Using density functional theory, we calculate the Na vacancy formation energies: 3.37 eV in the bulk of the material and 2.52 eV on the (100) surface, which underlines the importance of nanostructures. American Chemical Society 2019-06-06 /pmc/articles/PMC6648861/ /pubmed/31460078 http://dx.doi.org/10.1021/acsomega.9b00105 Text en Copyright © 2019 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Saroha, Rakesh Khan, Tuhin S. Chandra, Mahesh Shukla, Rishabh Panwar, Amrish K. Gupta, Amit Haider, M. Ali Basu, Suddhasatwa Dhaka, Rajendra S. Electrochemical Properties of Na(0.66)V(4)O(10) Nanostructures as Cathode Material in Rechargeable Batteries for Energy Storage Applications |
title | Electrochemical Properties
of Na(0.66)V(4)O(10) Nanostructures as
Cathode Material in Rechargeable Batteries
for Energy Storage Applications |
title_full | Electrochemical Properties
of Na(0.66)V(4)O(10) Nanostructures as
Cathode Material in Rechargeable Batteries
for Energy Storage Applications |
title_fullStr | Electrochemical Properties
of Na(0.66)V(4)O(10) Nanostructures as
Cathode Material in Rechargeable Batteries
for Energy Storage Applications |
title_full_unstemmed | Electrochemical Properties
of Na(0.66)V(4)O(10) Nanostructures as
Cathode Material in Rechargeable Batteries
for Energy Storage Applications |
title_short | Electrochemical Properties
of Na(0.66)V(4)O(10) Nanostructures as
Cathode Material in Rechargeable Batteries
for Energy Storage Applications |
title_sort | electrochemical properties
of na(0.66)v(4)o(10) nanostructures as
cathode material in rechargeable batteries
for energy storage applications |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6648861/ https://www.ncbi.nlm.nih.gov/pubmed/31460078 http://dx.doi.org/10.1021/acsomega.9b00105 |
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