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Table 3 Fitting parameters and relative composition ratios of four nitrogen components in HB-FePc catalysts

From: Active site formation mechanism of carbon-based oxygen reduction catalysts derived from a hyperbranched iron phthalocyanine polymer

Sample

Gaussian width (eV)

N content (at.%)

Binding energy (eV)/(composition ratio, %)

   

NP1

NP2

NP3

NP4

HB900

1.53

0.45

398.3

400.1

401.1

403.2

(36.3)

(7.4)

(50.8)

(5.5)

HB800

1.44

0.56

398.2

400.1

401.0

403.0

(34.4)

(11.1)

(47.6)

(7.0)

HB700

1.30

2.17

398.6

400.2

401.1

403.5

(43.9)

(11.9)

(40.7)

(3.5)

HB650

1.30

2.76

398.5

400.1

401.1

403.3

(47.7)

(24.8)

(25.5)

(2.0)

HB600

1.30

3.09

398.6

399.8

400.9

403.3

(52.6)

(22.9)

(24.0)

(0.5)

HB550

1.30

4.56

398.4

399.8

400.6

403.2

(62.1)

(18.5)

(19.0)

(0.4)

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