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 Thermal Analysis in Studies of Structural Heterogeneity in Active Carbons

1996 ◽  
Vol 14 (1) ◽  
pp. 39-46 ◽  
Author(s):  
Jacek Goworek ◽  
Wojciech Stefaniak
Keyword(s):  
Thermal Analysis ◽  
Pore Size ◽  
Thermal Desorption ◽  
Adsorption Isotherms ◽  
Structural Heterogeneity ◽  
Size Distributions ◽  
Active Carbons ◽  
Kelvin Equation ◽  
Pore Size Distributions

The thermal desorption of benzene and methanol was measured using a derivatograph. Pore size distributions of active carbons were determined on the basis of thermogravimetric curves using the Kelvin equation. Total pore volumes and volumes of mesopores were compared with those derived from adsorption isotherms of benzene vapour.

scholarly journals Surfactant-Free Solvothermal Method for Synthesis of Mesoporous Nanocrystalline TiO2Microspheres with Tailored Pore Size

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Yajing Zhang ◽  
Sujuan Zhang ◽  
Kangjun Wang ◽  
Fu Ding ◽  
Jing Wu
Keyword(s):  
Pore Size ◽  
Anatase Phase ◽  
Nitrogen Adsorption ◽  
Ethanol Solution ◽  
Tetrabutyl Titanate ◽  
Size Distributions ◽  
Pore Size Distributions ◽  
Structure Morphology ◽  
Mesoporous Microspheres ◽  
Adsorption Desorption

TiO2mesoporous microspheres self-assembled from nanoparticles were synthesized by a surfactant-free solvothermal route. The TiO2precursors were fabricated by tetrabutyl titanate, glacial acetic acid, and urea in the ethanol solution at 140°C for 20 h, and TiO2mesoporous microspheres were obtained by a postcalcination at temperatures of 450°C for promoting TiO2crystallization and the removal of residual organics. The phase structure, morphology, and pore nature were characterized by XRD, SEM, and nitrogen adsorption-desorption measurements. The as-prepared TiO2microspheres are in anatase phase, with 2-3 μm in diameter, and narrow pore distribution range is 3-4 nm. The adjustments of the synthetic parameters lead to the formation of the mesoporous TiO2microspheres with tuned pore size distributions and morphology.

scholarly journals Pore size distributions of active carbons assessed by different techniques

Carbon ◽  
2000 ◽  
Vol 38 (6) ◽  
pp. 938-941 ◽  
Author(s):  
F. Stoeckli ◽  
A. Guillot ◽  
D. Hugi-Cleary ◽  
A.M. Slasli
Keyword(s):  
Pore Size ◽  
Size Distributions ◽  
Active Carbons ◽  
Pore Size Distributions
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