Raman spectroscopic study on pyrolyzed wood and bark of Japanese cedar: temperature dependence of Raman parameters |
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| Authors: | Shigeru Yamauchi Yasuji Kurimoto |
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| Institution: | (1) Institute of Wood Technology, Akita Prefectural University, 11-1 Kaieisaka, Noshiro 016-0876, Japan Tel. +81-185-52-6984; Fax +81-185-52-6976 e-mail: sigeru@iwt.akita-pu.ac.jp, JP |
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| Abstract: | Raman spectra were measured for Japanese cedar wood and bark pyrolyzed in a nitrogen atmosphere at various temperatures (200°–1100°C).
Two characteristic bands, near 1340 and 1590 cm−1, denoted as the D-band and G-band due to graphitic carbon, respectively, appeared on all the spectra; and the spectral features
changed markedly with increasing heat-treatment temperature (HTT). The Raman parameters (band position, band width, D/G ratio)
of the bands were deconvolved using of a curve-fitting method. There was no significant difference in the values of the parameters
between the wood and bark. The D-band position and the G-band width showed a marked HTT dependence in the region of 400°–800°C.
We described the correlations of the Raman parameters with HTT and investigated the availability of Raman spectroscopy as
a means for evaluating HTT.
Received: January 28, 2002 / Accepted: June 14, 2002 |
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| Keywords: | Raman spectroscopy Japanese cedar Bark Pyrolysis Heat-treatment temperature |
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