Table 1 Physico-chemical properties of the porous carbon hosts and the corresponding sulfur/carbon composites.

From: Straightforward synthesis of Sulfur/N,S-codoped carbon cathodes for Lithium-Sulfur batteries

Material

Sample code

SBET (m2·g−1)

Vp (cm3·g−1)

Vmicro <2 nm (cm3·g−1)a

Sinfiltrated (wt%)b

Sdoped (wt%)c

Ndoped (wt%)c

Carbon yield (%)

Electrical conductivity (S·cm−1)d

S/carbon

CPS51

449

0.49

0.10

51

   

1.96

CPS65

176

0.36

0.03

65

   

1.86

CPS74

24

0.08

0.005

74

   

1.21

CPS83

—

—

—

83

   

0.48

Porous carbon

CP51

2116

1.60

0.67

 

5.6

2.0

12.0

2.10

CP65

2336

2.43

0.62

 

5.4

1.9

9.0

2.04

CP74

2467

2.39

0.65

 

5.3

1.8

7.7

1.98

CP83

2407

2.26

0.65

 

6.1

1.8

5.0

1.95

  1. aThe volume of micropores was calculated by using the QSDFT PSD; bdetermined by thermogravimetric analysis; cpercentage of sulfur and nitrogen doped into the carbon framework, determined by elemental chemical analysis after removing the infiltrated sulfur; ddetermined at 7.1 MPa.
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