A topologically substituted boron nitride hybrid aerogel for highly selective CO2 uptake
A topologically mediated synthesis of porous boron nitride aerogel has been experimentally and theoretically investigated for carbon dioxide (CO2) uptake. Replacement of the carbon atoms in a precursor aerogel of graphene oxide and carbon nanotubes was achieved using an elemental substitution reacti...
| Main Authors: | , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Online Access: | https://hdl.handle.net/10356/141168 |
| _version_ | 1826112525982236672 |
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| author | Kutty, Rajendrannair Govindan Sreejith, Sivaramapanicker Kong, Xianghua He, Haiyong Wang, Hong Lin, Junhao Suenaga, Kazu Lim, Chwee Teck Zhao, Yanli Ji, Wei Liu, Zheng |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Kutty, Rajendrannair Govindan Sreejith, Sivaramapanicker Kong, Xianghua He, Haiyong Wang, Hong Lin, Junhao Suenaga, Kazu Lim, Chwee Teck Zhao, Yanli Ji, Wei Liu, Zheng |
| author_sort | Kutty, Rajendrannair Govindan |
| collection | NTU |
| description | A topologically mediated synthesis of porous boron nitride aerogel has been experimentally and theoretically investigated for carbon dioxide (CO2) uptake. Replacement of the carbon atoms in a precursor aerogel of graphene oxide and carbon nanotubes was achieved using an elemental substitution reaction, to obtain a boron and nitrogen framework. The newly prepared BN aerogel possessed a specific surface area of 716.56 m2/g and exhibited an unprecedented twentyfold increase in CO2 uptake over N2, adsorbing 100 cc/g at 273 K and 80 cc/g in ambient conditions, as verified by adsorption isotherms via the multipoint Brunauer-Emmett-Teller (BET) method. Density functional theory calculations were performed to give hints on the mechanism of such high selectivity of CO2 over N2 adsorption in BN aerogel, which may be due to the interaction between the intrinsic polar nature of B–N bonds and the high quadrupole moment of CO2 over N2. |
| first_indexed | 2024-10-01T03:08:29Z |
| format | Journal Article |
| id | ntu-10356/141168 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:08:29Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1411682020-06-04T08:58:42Z A topologically substituted boron nitride hybrid aerogel for highly selective CO2 uptake Kutty, Rajendrannair Govindan Sreejith, Sivaramapanicker Kong, Xianghua He, Haiyong Wang, Hong Lin, Junhao Suenaga, Kazu Lim, Chwee Teck Zhao, Yanli Ji, Wei Liu, Zheng School of Materials Science and Engineering School of Physical and Mathematical Sciences Center for Programmable Materials Engineering::Materials Boron Nitride Boron Nitride Nanotube A topologically mediated synthesis of porous boron nitride aerogel has been experimentally and theoretically investigated for carbon dioxide (CO2) uptake. Replacement of the carbon atoms in a precursor aerogel of graphene oxide and carbon nanotubes was achieved using an elemental substitution reaction, to obtain a boron and nitrogen framework. The newly prepared BN aerogel possessed a specific surface area of 716.56 m2/g and exhibited an unprecedented twentyfold increase in CO2 uptake over N2, adsorbing 100 cc/g at 273 K and 80 cc/g in ambient conditions, as verified by adsorption isotherms via the multipoint Brunauer-Emmett-Teller (BET) method. Density functional theory calculations were performed to give hints on the mechanism of such high selectivity of CO2 over N2 adsorption in BN aerogel, which may be due to the interaction between the intrinsic polar nature of B–N bonds and the high quadrupole moment of CO2 over N2. MOE (Min. of Education, S’pore) 2020-06-04T08:58:42Z 2020-06-04T08:58:42Z 2018 Journal Article Kutty, R. G., Sreejith, S., Kong, X., He, H., Wang, H., Lin, J., . . . Liu, Z. (2018). A topologically substituted boron nitride hybrid aerogel for highly selective CO2 uptake. Nano Research, 11(12), 6325-6335. doi:10.1007/s12274-018-2156-z 1998-0124 https://hdl.handle.net/10356/141168 10.1007/s12274-018-2156-z 2-s2.0-85052129850 12 11 6325 6335 en Nano Research © 2018 Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature. All rights reserved. |
| spellingShingle | Engineering::Materials Boron Nitride Boron Nitride Nanotube Kutty, Rajendrannair Govindan Sreejith, Sivaramapanicker Kong, Xianghua He, Haiyong Wang, Hong Lin, Junhao Suenaga, Kazu Lim, Chwee Teck Zhao, Yanli Ji, Wei Liu, Zheng A topologically substituted boron nitride hybrid aerogel for highly selective CO2 uptake |
| title | A topologically substituted boron nitride hybrid aerogel for highly selective CO2 uptake |
| title_full | A topologically substituted boron nitride hybrid aerogel for highly selective CO2 uptake |
| title_fullStr | A topologically substituted boron nitride hybrid aerogel for highly selective CO2 uptake |
| title_full_unstemmed | A topologically substituted boron nitride hybrid aerogel for highly selective CO2 uptake |
| title_short | A topologically substituted boron nitride hybrid aerogel for highly selective CO2 uptake |
| title_sort | topologically substituted boron nitride hybrid aerogel for highly selective co2 uptake |
| topic | Engineering::Materials Boron Nitride Boron Nitride Nanotube |
| url | https://hdl.handle.net/10356/141168 |
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