A Comparison of Pore Size Distributions of Activated Carbons Calculated from Nitrogen and Water Desorption Isotherms

1952 ◽  
Vol 74 (1) ◽  
pp. 61-64 ◽  
Author(s):  
A. J. Juhola ◽  
A. J. Palumbo ◽  
S. B. Smith
Keyword(s):  
Pore Size ◽  
Activated Carbons ◽  
Size Distributions ◽  
Water Desorption ◽  
Pore Size Distributions ◽  
Desorption Isotherms

Calculation of Pore Size Distributions of Activated Carbons from Adsorption Isotherms

Langmuir ◽  
1999 ◽  
Vol 15 (23) ◽  
pp. 8235-8245 ◽  
Author(s):  
G. M. Davies ◽  
N. A. Seaton ◽  
V. S. Vassiliadis
Keyword(s):  
Pore Size ◽  
Adsorption Isotherms ◽  
Activated Carbons ◽  
Size Distributions ◽  
Pore Size Distributions

scholarly journals Adsorption Energy and Pore-Size Distributions of Activated Carbons Calculated Using Hill's Model

2014 ◽  
Vol 32 (7) ◽  
pp. 571-590 ◽  
Author(s):  
Yosra Ben Torkia ◽  
Nadia Bouaziz ◽  
Shaheen A. Al-Muhtaseb ◽  
Abdelmottaleb Ben Lamine
Keyword(s):  
Pore Size ◽  
Adsorption Energy ◽  
Activated Carbons ◽  
Size Distributions ◽  
Pore Size Distributions

scholarly journals The Porosity of Carbon Materials as Estimated by Thermogravimetric Analysis

1994 ◽  
Vol 11 (2) ◽  
pp. 105-112 ◽  
Author(s):  
J. Goworek ◽  
W. Stefaniak ◽  
A. Swiatkowski
Keyword(s):  
Thermogravimetric Analysis ◽  
Pore Size ◽  
Thermal Desorption ◽  
Carbon Materials ◽  
Size Distributions ◽  
Active Carbons ◽  
Thermal Analyzer ◽  
Pore Size Distributions ◽  
Desorption Isotherms ◽  
Adsorption Desorption

The thermal desorption of benzene has been measured using a thermal analyzer. Pore size distributions of active carbons and carbon blacks have been determined on the basis of thermogravimetric curves using the Kelvin equation. Calculated distributions and total pore volumes have been compared with those derived from adsorption/desorption isotherms of nitrogen and benzene vapour.

scholarly journals Physical Activation of Wooden Chips and the Effect of Particle Size, Initial Humidity, and Acetic Acid Extraction on the Properties of Activated Carbons

2018 ◽  
Vol 4 (4) ◽  
pp. 66 ◽  
Author(s):  
Davide Bergna ◽  
Henrik Romar ◽  
Ulla Lassi
Keyword(s):  
Particle Size ◽  
Acetic Acid ◽  
Pore Size ◽  
Activated Carbons ◽  
Lower Surface ◽  
Physical Activation ◽  
Acid Extraction ◽  
Size Distributions ◽  
Pore Size Distributions ◽  
Significant Difference

In this research study, two different wooden biomasses (birch and pine) were thermally carbonized and steam-activated into activated carbons in a one-stage process. The effects of particle size and humidity (as received and oven-dried) on the properties, such as specific surface areas, pore volumes, and pore size distributions, of the final activated carbon characteristics were examined. Another set of biomasses (birch, spruce, and pine) was pre-treated before carbonization and the activation steps through an extractive process using a weak acetic acid in Soxhlet extractors. According to the results, the dried samples had a slightly lower surface area, while no difference was observed in the yields. For the extracted samples, there was a significant difference, especially in the pore size distributions, compared to the non-extracted samples. There appeared to be a shift from a meso-microporous distribution to a microporous distribution caused by the extractive pre-treatment.

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