Carbon dioxide adsorption by modified carbon nanotubes

2015 ◽  
Vol 10 (6) ◽  
pp. 885-892 ◽  
Author(s):  
Narges Omidfar ◽  
Ali Mohamadalizadeh ◽  
Seyed Hamed Mousavi
Keyword(s):  
Carbon Dioxide ◽  
Carbon Nanotubes ◽  
Carbon Dioxide Adsorption ◽  
Modified Carbon Nanotubes

Adsorption of Low-Concentration Carbon Dioxide on Amine-Modified Carbon Nanotubes at Ambient Temperature

2012 ◽  
Vol 26 (4) ◽  
pp. 2497-2504 ◽  
Author(s):  
Qing Ye ◽  
Jianqing Jiang ◽  
Chunxia Wang ◽  
Yamin Liu ◽  
Hua Pan ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Nanotubes ◽  
Ambient Temperature ◽  
Low Concentration ◽  
Modified Carbon Nanotubes

scholarly journals Investigation of the Interaction of Carbon Dioxide with Modified Functional Groups of Nanotubes

2021 ◽  
pp. 33-38
Author(s):  
Lev Kozhitov ◽  
◽  
Irina Zaporotskova ◽  
Natalia Boroznina ◽  
Sergey Boroznin ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Nanotubes ◽  
Carbon Dioxide Molecule ◽  
Atomic Force ◽  
Highly Sensitive ◽  
Amine Groups ◽  
Modified Carbon Nanotubes ◽  
New Generation ◽  
Modified Functional

The article presents a theoretical study of the possibility of interaction of one of the most common substances in nature – carbon dioxide – with modified functional carboxyl and amine groups of carbon nanotubes and borocarbon nanotubes of the BC5 type. The article analyzes the results of the interaction and provides a comparative analysis of the efficiency of the sorption interaction of a nanosystem with a carbon dioxide molecule. The performed studies prove the implementation of a weak physical sorption interaction between a nanosystem consisting of a carbon nanotube, a boundary-modified amine group, and a carbon dioxide molecule. This allows us talking about a possible sensory interaction that will allow using such a complex to detect a micro amount of a substance-carbon dioxide. Based on this, it can be concluded that modified carbon nanotubes can be elements of sensors for determining the quality of indoor air, act as probes for cantilevers of atomic force microscopes and other devices. Recommendations are given for further use of the results as a basis for creating a highly sensitive new-generation sensor device for detecting micro-quantities of substances.

Ionic liquid functionalization – an effective way to tune carbon dioxide adsorption properties of carbon nanotubes

RSC Advances ◽  
2015 ◽  
Vol 5 (44) ◽  
pp. 35098-35106 ◽  
Author(s):  
P. Tamilarasan ◽  
S. Ramaprabhu
Keyword(s):  
Carbon Dioxide ◽  
Carbon Nanotubes ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Adsorption Properties ◽  
Carbon Dioxide Adsorption ◽  
Covalent Functionalization ◽  
Multi Walled Carbon Nanotubes ◽  
Adsorption Desorption ◽  
Walled Carbon Nanotubes

In this research, the influence of non-covalent functionalization by ionic liquids on carbon dioxide (CO2) adsorption–desorption properties of multi-walled carbon nanotubes (MWNTs) and partially exfoliated MWNTs (PEMWNTs) has been studied.

Influence of intramolecular interactions on carbon dioxide gas adsorption capacity in Mesoporous Imine polymers

2018 ◽  
Author(s):  
Jaya Prakash Madda ◽  
Pilli Govindaiah ◽  
Sushant Kumar Jena ◽  
Sabbhavat Krishna ◽  
Rupak Kishor
Keyword(s):  
Carbon Dioxide ◽  
Adsorption Capacity ◽  
Density Functional ◽  
Gas Adsorption ◽  
Ambient Pressure ◽  
Condensation Reaction ◽  
Intramolecular Interactions ◽  
Carbon Dioxide Adsorption ◽  
Nitrogen Gas ◽  
Adsorption Characteristic

<p>Covalent organic Imine polymers with intrinsic meso-porosity were synthesized by condensation reaction between 4,4-diamino diphenyl methane and (para/meta/ortho)-phthaladehyde. Even though these polymers were synthesized from precursors of bis-bis covalent link mode, the bulk materials were micrometer size particles with intrinsic mesoporous enables nitrogen as well as carbon dioxide adsorption in the void spaces. These polymers were showed stability up to 260<sup>o</sup> centigrade. Nitrogen gas adsorption capacity up to 250 cc/g in the ambient pressure was observed with type III adsorption characteristic nature. Carbon dioxide adsorption experiments reveal the possible terminal amine functional group to carbamate with CO<sub>2</sub> gas molecule to the polymers. One of the imine polymers, COP-3 showed more carbon dioxide sorption capacity and isosteric heat of adsorption (Q<sub>st</sub>) than COP-1 and COP-2 at 273 K even though COP-3 had lower porosity for nitrogen gas than COP-1 and COP-2. We explained the trends in gas adsorption capacities and Qst values as a consequence of the intra molecular interactions confirmed by Density Functional Theory computational experiments on small molecular fragments.</p>

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