Estimation of specific surface area of particles based on size distribution curve

2018 ◽  
Vol 70 (10) ◽  
pp. 533-540 ◽  
Author(s):  
Yahya Ghasemi ◽  
Mats Emborg ◽  
Andrzej Cwirzen
Keyword(s):  
Specific Surface ◽  
Size Distribution ◽  
Surface Area ◽  
Specific Surface Area ◽  
Distribution Curve

The relationship between geotechnical index properties and the pore-size distribution of compacted clayey silts

2015 ◽  
Vol 22 (6) ◽  
Author(s):  
Nazile Ural
Keyword(s):  
Specific Surface ◽  
Pore Size Distribution ◽  
Pore Size ◽  
Size Distribution ◽  
Surface Area ◽  
Specific Surface Area ◽  
Pore Volume ◽  
Correlation Coefficients ◽  
Liquid Limit ◽  
Index Properties

AbstractIn this study, the relationships between geotechnical index properties and the pore-size distribution of compacted natural silt and artificial soil mixtures, namely, silt with two different clays and three different clay percentages (10%, 20%, and 40%), were examined and compared. Atterberg’s limit tests, standard compaction tests, mercury intrusion porosimetry, X-ray diffraction, scanning electron microscopy (SEM) analysis, and Brunauer-Emmett-Teller specific surface analysis were conducted. The results show that the liquid limit, the cumulative pore volume, and specific surface area of artificially mixed soils increase with an increase in the percentage of clay. The cumulative pore volume and specific surface area with geotechnical index properties were compared. High correlation coefficients were observed between the specific areas and both the liquid limit and the plasticity index, as well as between the cumulative pore volume and both the clay percentage and the

scholarly journals A combustion method to synthesize nanoporous graphene

RSC Advances ◽  
2018 ◽  
Vol 8 (17) ◽  
pp. 9320-9326
Author(s):  
Q. Y. Yang ◽  
H. L. Zhou ◽  
M. T. Xie ◽  
P. P. Ma ◽  
Z. S. Zhu ◽  
...  
Keyword(s):  
Specific Surface ◽  
Pore Size Distribution ◽  
Pore Size ◽  
Size Distribution ◽  
Surface Area ◽  
Specific Surface Area ◽  
Combustion Process ◽  
Combustion Method ◽  
Nanoporous Graphene

The combustion process of GOA, and the specific surface area and pore size distribution of P-RGO are shown in the images.

Study on Properties of Ultrasonication Treated Pulp Fiber

2014 ◽  
Vol 633-634 ◽  
pp. 451-454
Author(s):  
Quan Xiao Liu ◽  
Dan Xi Li
Keyword(s):  
Magnetic Properties ◽  
Specific Surface ◽  
Pore Size Distribution ◽  
Pore Size ◽  
Size Distribution ◽  
Surface Area ◽  
Specific Surface Area ◽  
Ash Content ◽  
Pulp Fiber ◽  
Treated Fiber

SEM and Automated Surface Area & Pore Size Analyzer were used to characterize surface morphology and specific surface area and the pore size distribution of fibers. The results showed that specific surface area and pore size distribution increase after ultrasonication. The ash content of the composites of ultrasonic treated fiber is larger than the untreated fiber, and the magnetic properties show a good superparamagnetic behavior.

Preparation and Particle Size Characterization of Cu Nanoparticles Prepared by Anodic Arc Plasma

2010 ◽  
Vol 92 ◽  
pp. 163-169
Author(s):  
Hong Xia Qiao ◽  
Zhi Qiang Wei ◽  
Ming Ru Zhou ◽  
Zhong Mao He
Keyword(s):  
Crystal Structure ◽  
Particle Size ◽  
Specific Surface ◽  
Size Distribution ◽  
Surface Area ◽  
Specific Surface Area ◽  
Average Particle Size ◽  
Spherical Shape ◽  
Average Particle ◽  
Uniform Size

Copper nanoparticles were successfully prepared in large scales by means of anodic arc discharging plasma method in inert atmosphere. The particle size, specific surface area, crystal structure and morphology of the samples were characterized by X-ray diffraction (XRD), BET equation, transmission electron microscopy (TEM) and the corresponding selected area electron diffraction (SAED). The experiment results indicate that the crystal structure of the samples is fcc structure as same as that of the bulk materials. The specific surface area is is 11 m2/g, with the particle size distribution ranging from 30 to 90 nm, the average particle size about 67nm obtained from TEM and confirmed from XRD and BET results. The nanoparticles have uniform size, higher purity, narrow size distribution and spherical shape can be prepared by this convenient and effective method.

scholarly journals The effect of porosity on the reactivity of calcium sorbents

Mineralogia ◽  
2020 ◽  
Vol 51 (1) ◽  
pp. 37-45
Author(s):  
Michał Wichliński ◽  
Rafał Kobyłecki
Keyword(s):  
Specific Surface ◽  
Pore Size Distribution ◽  
Pore Size ◽  
Size Distribution ◽  
Surface Area ◽  
Specific Surface Area ◽  
Total Porosity ◽  
Classical Procedure ◽  
Reactivity Indexes ◽  
Capacity Index

Abstract The current work presents the results of seven sorbent samples investigated with respect to SO2 capture. The sorbents’ reactivity and capacity indexes were determined, and the tests were carried out in accordance with the ‘classical’ procedure for limestone sorbents. The reactivity indexes (RIs) of the tested samples were in the range of 2.57 and 3.55 (mol Ca)/(mol S), while the absolute sorption coefficients as determined by the capacity index (CI) varied between 87.9 and 120.6 (g S)/(kg of sorbent). Porosimetric analysis was also carried out and the specific surface area of the samples was found to be between 0.2 and 1.7 m2/g. The number of micro-, meso- and macro-pores in individual samples was determined from the corresponding pore size distribution histograms, and the values of sorbent RIs and CIs were correlated with the samples’ total porosity and specific surface.

scholarly journals Specific surface area of polydispersions as a function of size distribution sharpness

2020 ◽  
Vol 92 (3) ◽  
Author(s):  
PAULO FILIPE T. LOPES ◽  
JOSÉ AURÉLIO M. DA LUZ ◽  
FELIPE O. MILHOMEM
Keyword(s):  
Specific Surface ◽  
Size Distribution ◽  
Surface Area ◽  
Specific Surface Area
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