Table 2 Pore structure parameters of CSDs with different PSSs after low-temperature N2 adsorption.

From: Self-similarity study based on the particle sizes of coal-series diatomite

Sample/mm

SSA/(m2·g−1)

Smic/(m2·g−1)

 

− 0.025

47.0258

4.0315

 

− 0.038+0.025

30.1305

0.0000

 

− 0.045+0.038

30.6470

0.4057

 

− 0.075+0.045

32.7009

0.4778

 

− 0.15+0.075

8.9570

0.0000

 

− 0.25+0.15

5.9615

0.0000

 

− 0.5+0.25

4.6050

0.0000

 

− 1+0.5

16.8782

0.0000

 

− 2+1

26.8294

0.0000

 

− 2

51.2128

0.0000

 

Sample/mm

VT/(cm3·g−1)

Vmic/(cm3·g−1)

Vmes/(cm3·g−1)

− 0.025

0.1407

0.0023

0.1505

− 0.038+0.025

0.1029

0.0000

0.1147

− 0.045+0.038

0.0872

0.0007

0.0962

− 0.075+0.045

0.0934

0.0001

0.1031

− 0.15+0.075

0.0305

0.0000

0.0037

− 0.25+0.15

0.0340

0.0000

0.0370

− 0.5+0.25

0.0257

0.0000

0.0279

− 1+0.5

0.0703

0.0000

0.0752

− 2+1

0.1065

0.0000

0.1161

− 2

0.2177

0.0000

0.2279

Sample/mm

Da/nm

Dmes/nm

Dmmes/nm

− 0.025

11.9679

9.3405

3.8652

− 0.038+0.025

13.6606

8.9246

3.8417

− 0.045+0.038

11.3812

8.0870

3.9581

− 0.075+0.045

11.4248

7.9886

3.9540

− 0.15+0.075

13.6206

8.0353

3.9009

− 0.25+0.15

22.8131

13.8860

3.9081

− 0.5+0.25

22.3236

12.1837

3.9157

− 1+0.5

16.6605

11.7863

3.7044

− 2+1

15.8781

10.7627

3.7604

− 2

17.0036

13.1792

3.8139

  1. SSA is the specific surface area, Smic is the specific surface area of the micropores, VT is the total pore volume of N2 adsorption, Vmic is the micropore volume, Vmes is the mesopore volume, Da is the average pore diameter, Dmes is the average mesopore diameter, and Dmmes is the most probable mesopore diameter.