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Moss-like Hierarchical Architecture Self-Assembled by Ultrathin Na(2)Ti(3)O(7) Nanotubes: Synthesis, Electrical Conductivity, and Electrochemical Performance in Sodium-Ion Batteries
Nanocrystalline layer-structured monoclinic Na(2)Ti(3)O(7) is currently under consideration for usage in solid state electrolyte applications or electrochemical devices, including sodium-ion batteries, fuel cells, and sensors. Herein, a facile one-pot hydrothermal synthetic procedure is developed to...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9182444/ https://www.ncbi.nlm.nih.gov/pubmed/35683760 http://dx.doi.org/10.3390/nano12111905 |
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author | Opra, Denis P. Neumoin, Anton I. Sinebryukhov, Sergey L. Podgorbunsky, Anatoly B. Kuryavyi, Valery G. Mayorov, Vitaly Yu. Ustinov, Alexander Yu. Gnedenkov, Sergey V. |
author_facet | Opra, Denis P. Neumoin, Anton I. Sinebryukhov, Sergey L. Podgorbunsky, Anatoly B. Kuryavyi, Valery G. Mayorov, Vitaly Yu. Ustinov, Alexander Yu. Gnedenkov, Sergey V. |
author_sort | Opra, Denis P. |
collection | PubMed |
description | Nanocrystalline layer-structured monoclinic Na(2)Ti(3)O(7) is currently under consideration for usage in solid state electrolyte applications or electrochemical devices, including sodium-ion batteries, fuel cells, and sensors. Herein, a facile one-pot hydrothermal synthetic procedure is developed to prepare self-assembled moss-like hierarchical porous structure constructed by ultrathin Na(2)Ti(3)O(7) nanotubes with an outer diameter of 6–9 nm, a wall thickness of 2–3 nm, and a length of several hundred nanometers. The phase and chemical transformations, optoelectronic, conductive, and electrochemical properties of as-prepared hierarchically-organized Na(2)Ti(3)O(7) nanotubes have been studied. It is established that the obtained substance possesses an electrical conductivity of 3.34 × 10(−4) S/cm at room temperature allowing faster motion of charge carriers. Besides, the unique hierarchical Na(2)Ti(3)O(7) architecture exhibits promising cycling and rate performance as an anode material for sodium-ion batteries. In particular, after 50 charge/discharge cycles at the current loads of 50, 150, 350, and 800 mA/g, the reversible capacities of about 145, 120, 100, and 80 mA∙h/g, respectively, were achieved. Upon prolonged cycling at 350 mA/g, the capacity of approximately 95 mA∙h/g at the 200th cycle was observed with a Coulombic efficiency of almost 100% showing the retention as high as 95.0% initial storage. At last, it is found that residual water in the un-annealed nanotubular Na(2)Ti(3)O(7) affects its electrochemical properties. |
format | Online Article Text |
id | pubmed-9182444 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-91824442022-06-10 Moss-like Hierarchical Architecture Self-Assembled by Ultrathin Na(2)Ti(3)O(7) Nanotubes: Synthesis, Electrical Conductivity, and Electrochemical Performance in Sodium-Ion Batteries Opra, Denis P. Neumoin, Anton I. Sinebryukhov, Sergey L. Podgorbunsky, Anatoly B. Kuryavyi, Valery G. Mayorov, Vitaly Yu. Ustinov, Alexander Yu. Gnedenkov, Sergey V. Nanomaterials (Basel) Article Nanocrystalline layer-structured monoclinic Na(2)Ti(3)O(7) is currently under consideration for usage in solid state electrolyte applications or electrochemical devices, including sodium-ion batteries, fuel cells, and sensors. Herein, a facile one-pot hydrothermal synthetic procedure is developed to prepare self-assembled moss-like hierarchical porous structure constructed by ultrathin Na(2)Ti(3)O(7) nanotubes with an outer diameter of 6–9 nm, a wall thickness of 2–3 nm, and a length of several hundred nanometers. The phase and chemical transformations, optoelectronic, conductive, and electrochemical properties of as-prepared hierarchically-organized Na(2)Ti(3)O(7) nanotubes have been studied. It is established that the obtained substance possesses an electrical conductivity of 3.34 × 10(−4) S/cm at room temperature allowing faster motion of charge carriers. Besides, the unique hierarchical Na(2)Ti(3)O(7) architecture exhibits promising cycling and rate performance as an anode material for sodium-ion batteries. In particular, after 50 charge/discharge cycles at the current loads of 50, 150, 350, and 800 mA/g, the reversible capacities of about 145, 120, 100, and 80 mA∙h/g, respectively, were achieved. Upon prolonged cycling at 350 mA/g, the capacity of approximately 95 mA∙h/g at the 200th cycle was observed with a Coulombic efficiency of almost 100% showing the retention as high as 95.0% initial storage. At last, it is found that residual water in the un-annealed nanotubular Na(2)Ti(3)O(7) affects its electrochemical properties. MDPI 2022-06-02 /pmc/articles/PMC9182444/ /pubmed/35683760 http://dx.doi.org/10.3390/nano12111905 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Opra, Denis P. Neumoin, Anton I. Sinebryukhov, Sergey L. Podgorbunsky, Anatoly B. Kuryavyi, Valery G. Mayorov, Vitaly Yu. Ustinov, Alexander Yu. Gnedenkov, Sergey V. Moss-like Hierarchical Architecture Self-Assembled by Ultrathin Na(2)Ti(3)O(7) Nanotubes: Synthesis, Electrical Conductivity, and Electrochemical Performance in Sodium-Ion Batteries |
title | Moss-like Hierarchical Architecture Self-Assembled by Ultrathin Na(2)Ti(3)O(7) Nanotubes: Synthesis, Electrical Conductivity, and Electrochemical Performance in Sodium-Ion Batteries |
title_full | Moss-like Hierarchical Architecture Self-Assembled by Ultrathin Na(2)Ti(3)O(7) Nanotubes: Synthesis, Electrical Conductivity, and Electrochemical Performance in Sodium-Ion Batteries |
title_fullStr | Moss-like Hierarchical Architecture Self-Assembled by Ultrathin Na(2)Ti(3)O(7) Nanotubes: Synthesis, Electrical Conductivity, and Electrochemical Performance in Sodium-Ion Batteries |
title_full_unstemmed | Moss-like Hierarchical Architecture Self-Assembled by Ultrathin Na(2)Ti(3)O(7) Nanotubes: Synthesis, Electrical Conductivity, and Electrochemical Performance in Sodium-Ion Batteries |
title_short | Moss-like Hierarchical Architecture Self-Assembled by Ultrathin Na(2)Ti(3)O(7) Nanotubes: Synthesis, Electrical Conductivity, and Electrochemical Performance in Sodium-Ion Batteries |
title_sort | moss-like hierarchical architecture self-assembled by ultrathin na(2)ti(3)o(7) nanotubes: synthesis, electrical conductivity, and electrochemical performance in sodium-ion batteries |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9182444/ https://www.ncbi.nlm.nih.gov/pubmed/35683760 http://dx.doi.org/10.3390/nano12111905 |
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