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MXene molecular sieving membranes for highly efficient gas separation
Molecular sieving membranes with sufficient and uniform nanochannels that break the permeability-selectivity trade-off are desirable for energy-efficient gas separation, and the arising two-dimensional (2D) materials provide new routes for membrane development. However, for 2D lamellar membranes, di...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5765169/ https://www.ncbi.nlm.nih.gov/pubmed/29323113 http://dx.doi.org/10.1038/s41467-017-02529-6 |
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author | Ding, Li Wei, Yanying Li, Libo Zhang, Tao Wang, Haihui Xue, Jian Ding, Liang-Xin Wang, Suqing Caro, Jürgen Gogotsi, Yury |
author_facet | Ding, Li Wei, Yanying Li, Libo Zhang, Tao Wang, Haihui Xue, Jian Ding, Liang-Xin Wang, Suqing Caro, Jürgen Gogotsi, Yury |
author_sort | Ding, Li |
collection | PubMed |
description | Molecular sieving membranes with sufficient and uniform nanochannels that break the permeability-selectivity trade-off are desirable for energy-efficient gas separation, and the arising two-dimensional (2D) materials provide new routes for membrane development. However, for 2D lamellar membranes, disordered interlayer nanochannels for mass transport are usually formed between randomly stacked neighboring nanosheets, which is obstructive for highly efficient separation. Therefore, manufacturing lamellar membranes with highly ordered nanochannel structures for fast and precise molecular sieving is still challenging. Here, we report on lamellar stacked MXene membranes with aligned and regular subnanometer channels, taking advantage of the abundant surface-terminating groups on the MXene nanosheets, which exhibit excellent gas separation performance with H(2) permeability >2200 Barrer and H(2)/CO(2) selectivity >160, superior to the state-of-the-art membranes. The results of molecular dynamics simulations quantitatively support the experiments, confirming the subnanometer interlayer spacing between the neighboring MXene nanosheets as molecular sieving channels for gas separation. |
format | Online Article Text |
id | pubmed-5765169 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-57651692018-01-17 MXene molecular sieving membranes for highly efficient gas separation Ding, Li Wei, Yanying Li, Libo Zhang, Tao Wang, Haihui Xue, Jian Ding, Liang-Xin Wang, Suqing Caro, Jürgen Gogotsi, Yury Nat Commun Article Molecular sieving membranes with sufficient and uniform nanochannels that break the permeability-selectivity trade-off are desirable for energy-efficient gas separation, and the arising two-dimensional (2D) materials provide new routes for membrane development. However, for 2D lamellar membranes, disordered interlayer nanochannels for mass transport are usually formed between randomly stacked neighboring nanosheets, which is obstructive for highly efficient separation. Therefore, manufacturing lamellar membranes with highly ordered nanochannel structures for fast and precise molecular sieving is still challenging. Here, we report on lamellar stacked MXene membranes with aligned and regular subnanometer channels, taking advantage of the abundant surface-terminating groups on the MXene nanosheets, which exhibit excellent gas separation performance with H(2) permeability >2200 Barrer and H(2)/CO(2) selectivity >160, superior to the state-of-the-art membranes. The results of molecular dynamics simulations quantitatively support the experiments, confirming the subnanometer interlayer spacing between the neighboring MXene nanosheets as molecular sieving channels for gas separation. Nature Publishing Group UK 2018-01-11 /pmc/articles/PMC5765169/ /pubmed/29323113 http://dx.doi.org/10.1038/s41467-017-02529-6 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Ding, Li Wei, Yanying Li, Libo Zhang, Tao Wang, Haihui Xue, Jian Ding, Liang-Xin Wang, Suqing Caro, Jürgen Gogotsi, Yury MXene molecular sieving membranes for highly efficient gas separation |
title | MXene molecular sieving membranes for highly efficient gas separation |
title_full | MXene molecular sieving membranes for highly efficient gas separation |
title_fullStr | MXene molecular sieving membranes for highly efficient gas separation |
title_full_unstemmed | MXene molecular sieving membranes for highly efficient gas separation |
title_short | MXene molecular sieving membranes for highly efficient gas separation |
title_sort | mxene molecular sieving membranes for highly efficient gas separation |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5765169/ https://www.ncbi.nlm.nih.gov/pubmed/29323113 http://dx.doi.org/10.1038/s41467-017-02529-6 |
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