Samples

O (at%)

N (at%)

C-O (at%)

C=O (at%)

O-C=O (at%)

H700

12.2

1.4

5.1

4.5

3.2

H800

10.5

0.8

3.3

1.9

1.1

H900

6.6

0.4

1.2

0.6

0.4