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High-Level Heteroatom Doped Two-Dimensional Carbon Architectures for Highly Efficient Lithium-Ion Storage
In this work, high-level heteroatom doped two-dimensional hierarchical carbon architectures (H-2D-HCA) are developed for highly efficient Li-ion storage applications. The achieved H-2D-HCA possesses a hierarchical 2D morphology consisting of tiny carbon nanosheets vertically grown on carbon nanoplat...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5900749/ https://www.ncbi.nlm.nih.gov/pubmed/29686985 http://dx.doi.org/10.3389/fchem.2018.00097 |
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author | Wang, Zhijie Wang, Yanyan Wang, Wenhui Yu, Xiaoliang Lv, Wei Xiang, Bin He, Yan-Bing |
author_facet | Wang, Zhijie Wang, Yanyan Wang, Wenhui Yu, Xiaoliang Lv, Wei Xiang, Bin He, Yan-Bing |
author_sort | Wang, Zhijie |
collection | PubMed |
description | In this work, high-level heteroatom doped two-dimensional hierarchical carbon architectures (H-2D-HCA) are developed for highly efficient Li-ion storage applications. The achieved H-2D-HCA possesses a hierarchical 2D morphology consisting of tiny carbon nanosheets vertically grown on carbon nanoplates and containing a hierarchical porosity with multiscale pore size. More importantly, the H-2D-HCA shows abundant heteroatom functionality, with sulfur (S) doping of 0.9% and nitrogen (N) doping of as high as 15.5%, in which the electrochemically active N accounts for 84% of total N heteroatoms. In addition, the H-2D-HCA also has an expanded interlayer distance of 0.368 nm. When used as lithium-ion battery anodes, it shows excellent Li-ion storage performance. Even at a high current density of 5 A g(−1), it still delivers a high discharge capacity of 329 mA h g(−1) after 1,000 cycles. First principle calculations verifies that such unique microstructure characteristics and high-level heteroatom doping nature can enhance Li adsorption stability, electronic conductivity and Li diffusion mobility of carbon nanomaterials. Therefore, the H-2D-HCA could be promising candidates for next-generation LIB anodes. |
format | Online Article Text |
id | pubmed-5900749 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-59007492018-04-23 High-Level Heteroatom Doped Two-Dimensional Carbon Architectures for Highly Efficient Lithium-Ion Storage Wang, Zhijie Wang, Yanyan Wang, Wenhui Yu, Xiaoliang Lv, Wei Xiang, Bin He, Yan-Bing Front Chem Chemistry In this work, high-level heteroatom doped two-dimensional hierarchical carbon architectures (H-2D-HCA) are developed for highly efficient Li-ion storage applications. The achieved H-2D-HCA possesses a hierarchical 2D morphology consisting of tiny carbon nanosheets vertically grown on carbon nanoplates and containing a hierarchical porosity with multiscale pore size. More importantly, the H-2D-HCA shows abundant heteroatom functionality, with sulfur (S) doping of 0.9% and nitrogen (N) doping of as high as 15.5%, in which the electrochemically active N accounts for 84% of total N heteroatoms. In addition, the H-2D-HCA also has an expanded interlayer distance of 0.368 nm. When used as lithium-ion battery anodes, it shows excellent Li-ion storage performance. Even at a high current density of 5 A g(−1), it still delivers a high discharge capacity of 329 mA h g(−1) after 1,000 cycles. First principle calculations verifies that such unique microstructure characteristics and high-level heteroatom doping nature can enhance Li adsorption stability, electronic conductivity and Li diffusion mobility of carbon nanomaterials. Therefore, the H-2D-HCA could be promising candidates for next-generation LIB anodes. Frontiers Media S.A. 2018-04-05 /pmc/articles/PMC5900749/ /pubmed/29686985 http://dx.doi.org/10.3389/fchem.2018.00097 Text en Copyright © 2018 Wang, Wang, Wang, Yu, Lv, Xiang and He. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Chemistry Wang, Zhijie Wang, Yanyan Wang, Wenhui Yu, Xiaoliang Lv, Wei Xiang, Bin He, Yan-Bing High-Level Heteroatom Doped Two-Dimensional Carbon Architectures for Highly Efficient Lithium-Ion Storage |
title | High-Level Heteroatom Doped Two-Dimensional Carbon Architectures for Highly Efficient Lithium-Ion Storage |
title_full | High-Level Heteroatom Doped Two-Dimensional Carbon Architectures for Highly Efficient Lithium-Ion Storage |
title_fullStr | High-Level Heteroatom Doped Two-Dimensional Carbon Architectures for Highly Efficient Lithium-Ion Storage |
title_full_unstemmed | High-Level Heteroatom Doped Two-Dimensional Carbon Architectures for Highly Efficient Lithium-Ion Storage |
title_short | High-Level Heteroatom Doped Two-Dimensional Carbon Architectures for Highly Efficient Lithium-Ion Storage |
title_sort | high-level heteroatom doped two-dimensional carbon architectures for highly efficient lithium-ion storage |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5900749/ https://www.ncbi.nlm.nih.gov/pubmed/29686985 http://dx.doi.org/10.3389/fchem.2018.00097 |
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