Porphyrin-based porous polyimides: Synthesis, porous structure, carbon dioxide adsorption

Polymer ◽  
2019 ◽  
Vol 169 ◽  
pp. 160-166 ◽  
Author(s):  
Kaixiang Shi ◽  
Ningning Song ◽  
Yongcun Zou ◽  
Shiyang Zhu ◽  
Haiwei Tan ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Porous Structure ◽  
Carbon Dioxide Adsorption

Synthesizing MgO with a high specific surface for carbon dioxide adsorption

RSC Advances ◽  
2015 ◽  
Vol 5 (39) ◽  
pp. 30929-30935 ◽  
Author(s):  
Yu-Dong Ding ◽  
Gan Song ◽  
Xun Zhu ◽  
Rong Chen ◽  
Qiang Liao
Keyword(s):  
Carbon Dioxide ◽  
Specific Surface ◽  
Porous Structure ◽  
Adsorption Capacity ◽  
Carbon Dioxide Adsorption ◽  
Economic Methods ◽  
Highly Porous

Porous MgO were synthesized by simple and economic methods. The synthesized MgO exhibited highly porous structure and high CO2 adsorption capacity. This work provides a new way to synthesized MgO with highly porous structure for CO2 adsorption.

scholarly journals The Effect of Pore Volume of Hard Coals on Their Susceptibility to Spontaneous Combustion

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Agnieszka Dudzińska
Keyword(s):  
Carbon Dioxide ◽  
Porous Structure ◽  
Pore Volume ◽  
Oxygen Diffusion ◽  
Spontaneous Combustion ◽  
Gas Adsorption ◽  
Experimental Studies ◽  
Carbon Dioxide Adsorption ◽  
Adsorption Method

In this paper the results of the experimental studies on a relationship between pore volume of hard coals and their tendency to spontaneous combustion are presented. Pore volumes were determined by the gas adsorption method and spontaneous combustion tendencies of coals were evaluated by determination of the spontaneous combustion indexesSzaandSza′on the basis of the current Polish standards. An increase in the spontaneous combustion susceptibility of coal occurs in the case of the rise both in micropore volumes and in macropore surfaces. Porosity of coal strongly affects the possibility of oxygen diffusion into the micropores of coal located inside its porous structure. The volume of coal micropores determined on the basis of the carbon dioxide adsorption isotherms can serve as an indicator of a susceptibility of coal to spontaneous combustion.

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>

scholarly journals Rice husk-based biochar for carbon dioxide adsorption in biogas

2020 ◽  
Vol 599 ◽  
pp. 012021
Author(s):  
A Pertiwiningrum ◽  
R N Besari ◽  
M A Wuri ◽  
A W Harto ◽  
N A Fitriyanto ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Rice Husk ◽  
Carbon Dioxide Adsorption

Carbon Capture Performance of Amino-Modified MIL-101 at Room Temperature

2013 ◽  
Vol 395-396 ◽  
pp. 637-640
Author(s):  
Yi Yang ◽  
Zheng Ping Wang ◽  
Ling Meng ◽  
Lian Jun Wang
Keyword(s):  
Carbon Dioxide ◽  
Specific Surface ◽  
Pore Structure ◽  
Carbon Capture ◽  
Room Temperature ◽  
Ambient Pressure ◽  
Metal Organic Framework ◽  
Adsorption Properties ◽  
Carbon Dioxide Adsorption ◽  
Before And After

MIL-101, a metal-organic framework material, was synthesized by the high-temperature hydrothermal method. Triethylenetetramine (TETA) modification enabled the effective grafting of an amino group onto the surface of the materials and their pore structure. The crystal structure, micromorphology, specific surface area, and pore structure of the samples before and after modification were analyzed with an X-ray diffractometer, scanning electron microscope, specific surface and aperture tester, and infrared spectrometer. The carbon dioxide adsorption properties of the samples were determined by a thermal analyzer before and after TETA modification. Results show that moderate amino modification can effectively improve the microporous structure of MIL-101 and its carbon dioxide adsorption properties. After modification, the capacity of MIL-101 to adsorb carbon dioxide decreased only by 0.61 wt%, and a high adsorption capacity of 9.45 wt% was maintained after six cycles of adsorption testing at room temperature and ambient pressure.

A Microporous Zirconium Metal-Organic Framework Based on trans -Aconitic Acid for Selective Carbon Dioxide Adsorption

2019 ◽  
Vol 2019 (22) ◽  
pp. 2674-2679 ◽  
Author(s):  
Sujing Wang ◽  
Mohammad Wahiduzzaman ◽  
Charlotte Martineau-Corcos ◽  
Guillaume Maurin ◽  
Christian Serre
Keyword(s):  
Carbon Dioxide ◽  
Metal Organic Framework ◽  
Carbon Dioxide Adsorption ◽  
Aconitic Acid ◽  
Metal Organic ◽  
Zirconium Metal ◽  
Organic Framework
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