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不同炭化条件下竹炭的电子顺磁共振(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2005年06期
Page:
77-80
Column:
研究论文
publishdate:
2005-10-20

Article Info:/Info

Title:
Carbonization Mechanism of Bamboo by Means of Electron Spin Resonance
Article ID:
1000-2006(2005)06-0077-04
Author(s):
ZUO Song-lin13 FENG Wei-zhon2 GAO Shang-yu1
1. College of Chemical Engineering Nanjing Forestry University, Nanjing 210037, China; 2. College of Information Engineering Nanjing Forestry University, Nanjing 210037, China; 3. Key Laboratory of Mesoscopic Chemistry of Education Ministry Nanjing University, Nanjing 210093, China
Keywords:
Carbonization Bamboo Electron spin resonance
Classification number :
TQ351.21
DOI:
10.3969/j.jssn.1000-2006.2005.06.019
Document Code:
A
Abstract:
Carbonization mechanism of bamboo was investigated by means of Electron Spin Resonance (ESR). The results show: (1) Around 600 *C is a key carbonization temperature for bamboo. Below 600C, the first stage, bamboo mainly experiences the thermal decomposition. Above 600C, the second one, the conduction of bamboo charcoal is changed into semiconductor from insulator. Obviously silicon effect is observed in the transition stage. (2)Thermal decomposition of bamboo is mainly concerned with radicals from the decomposition of hemicellulose, cellulose, and lignin in bamboo. (3)Moisture and the carbonized atmosphere have effects on the properties and relaxation mechanism of spin centers.

References

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Last Update: 2013-05-20