Official Journal of the Japan Wood Research Society
Table 7 Classification of carbon peak components for wood materials
From: Study on the changes in surface characteristics of Populus tomentosa due to thermo-hydro-process
Group | Binding energy (eV) | Bond | Assignment |
|---|---|---|---|
C1 | 284.6 | C–C, C–H | Carbon atoms bonded only with carbon or hydrogen atoms (lignin and extractives) |
C2 | 286.1 | C–O | Carbon atoms bonded with one oxygen atom (hemicelluloses and cellulose) |
C3 | 288.0 | C=O, O–C–O | Carbon atoms bonded to a carbonyl or two non-carbonyl oxygen atoms (hemicelluloses and cellulose) |
C4 | 289.3 | O–C=O | Carbon atoms bonded to one carbonyl and one non-carbonyl oxygen atoms (hemicelluloses and extractives) |