Table 1 Structural properties and composition of the protic salt-derived CMs.

From: Bio-based protic salts as precursors for sustainable free-standing film electrodes

Carbon precursor

Carbonization temperature (°C)

SBET (m2 g−1)

Smic (m2g−1)

Vtot (cm3 g−1)

Vmic (cm3 g−1)

Pore size (nm)

Elemental analysis data

XPS analysis data

N (%)

C (%)

H (%)

P (%)

[His][PA] 1:1

800

537

253

0.27

0.11

2.6

5.2

59.6

2.6

3.08

[His][PA] 3:1

800

738

346

0.36

0.15

2.6

4.8

59.1

2.7

3.66

[His][PA] 6:1

800

2

2

0.01

 < 0.01

20.8

6.2

53.5

2.2

5.63

[MIm][PA] 1:1

900

538

373

0.30

0.17

5.4

6.3

61.5

1.7

5.59

[MIm][PA] 4:1

900

736

406

0.40

0.17

3.8

4.2

67.3

1.3

6.83

[MIm][PA] 6:1

900

346

190

0.08

0.19

3.7

2.6

40.9

0.9

4.41

[Trp][PA] 1:1

800

118

3

0.13

 < 0.01

4.2

2.8

48.4

2.4

7.32

[Arg][PA] 1:1

800

792

465

0.51

0.21

7.1

2.8

59.4

1.9

3.32

[Gly][PA] 1:1

800

149

25

0.30

0.01

12.3

2.6

50.8

2.1

6.61

[BeIm][PA] 1:1

900

697

174

0.07

0.28

3.97

2.2

58.4

1.6

4.07

[3-CNPy][PA] 1:1

900

1177

56

0.67

0.02

2.6

2.2

63.8

1.4

4.93

[DEMA][PA] 1:1

900

410

343

0.22

0.16

6.4

1.9

63.8

1.4

3.96

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