Understanding the pore-structure dependence of supercapacitive performance for microporous carbon in aqueous KOH and H2SO4 electrolytes

2021 ◽  
pp. 139422
Author(s):  
Mingzhe Liu ◽  
Xinping Yang ◽  
Xiaozhong Wu ◽  
Xin Wang ◽  
Yanyan Li ◽  
...  
2013 ◽  
Vol 39 (3) ◽  
pp. 3001-3006 ◽  
Author(s):  
J.L. Gonzalez ◽  
C.K. Piumbini ◽  
W.L. Scopel ◽  
F. Deleprani ◽  
A. Gomes ◽  
...  

2013 ◽  
Vol 1 (4) ◽  
pp. 1192-1200 ◽  
Author(s):  
Dan-Dan Zhou ◽  
Yuan-Jin Du ◽  
Yan-Fang Song ◽  
Yong-Gang Wang ◽  
Cong-Xiao Wang ◽  
...  

Author(s):  
C. A. Callender ◽  
Wm. C. Dawson ◽  
J. J. Funk

The geometric structure of pore space in some carbonate rocks can be correlated with petrophysical measurements by quantitatively analyzing binaries generated from SEM images. Reservoirs with similar porosities can have markedly different permeabilities. Image analysis identifies which characteristics of a rock are responsible for the permeability differences. Imaging data can explain unusual fluid flow patterns which, in turn, can improve production simulation models.Analytical SchemeOur sample suite consists of 30 Middle East carbonates having porosities ranging from 21 to 28% and permeabilities from 92 to 2153 md. Engineering tests reveal the lack of a consistent (predictable) relationship between porosity and permeability (Fig. 1). Finely polished thin sections were studied petrographically to determine rock texture. The studied thin sections represent four petrographically distinct carbonate rock types ranging from compacted, poorly-sorted, dolomitized, intraclastic grainstones to well-sorted, foraminiferal,ooid, peloidal grainstones. The samples were analyzed for pore structure by a Tracor Northern 5500 IPP 5B/80 image analyzer and a 80386 microprocessor-based imaging system. Between 30 and 50 SEM-generated backscattered electron images (frames) were collected per thin section. Binaries were created from the gray level that represents the pore space. Calculated values were averaged and the data analyzed to determine which geological pore structure characteristics actually affect permeability.


2020 ◽  
Author(s):  
Peng Xia ◽  
Hongnan Li ◽  
Yong Fu ◽  
Wenlang Qiao ◽  
Chuan Guo ◽  
...  

2001 ◽  
Vol 11 (PR3) ◽  
pp. Pr3-279-Pr3-286
Author(s):  
X. Dabou ◽  
P. Samaras ◽  
G. P. Sakellaropoulos

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