东南大学学报（自然科学版）2012，Vol.42Issue(1)：83-87,5.DOI:10.3969/j.issn.1001-0505.2012.01.016
木质素热解/炭化官能团演变与焦炭形成
Functional groups evolvement and charcoal formation during lignin pyrolysis/carbonization
摘要
Abstract
In order to produce high added value functional charcoal by biomass, a thermo-gravimet-ric analyzer coupled with a fourier transform infrared spectrometry system (TG-FTIR) was applied to investigate the relationship with functional groups evolvement and charcoal formation during lignin pyrolysis/carbonization. And electrical resistivity of charcoals was also tested. Experiment results show that the moisture is volatilized below 200 ℃. Pyrolysis occurs at 200 to 500 ℃ and charcoal begins to form. At 500 to 900 ℃, C-C bonds and C-H bonds in charcoal break further, phenyls become aromatized and form amorphous carbon, meanwhile, electrical resistivity of charcoal is reduced rapidly from 986 Ω · cm to 0. 6 Ω · cm. At 900 to 1 400 ℃ the structure of charcoal gets reconstructed to form a new structure which lies between amorphous carbon and graphite. Meanwhile the electrical resistivity of charcoal is further reduced to lower, about 0. 2 Ω · cm.关键词
木质素/焦炭/官能团/导电性Key words
lignin/ charcoal/ functional groups/ electrical resistivity分类
能源科技引用本文复制引用
曹俊,肖刚,许啸,金保昇..木质素热解/炭化官能团演变与焦炭形成[J].东南大学学报（自然科学版）,2012,42(1):83-87,5.基金项目
国家自然科学基金资助项目(50806013)、国家重点基础研究发展计划(973计划)资助项目(2010CB732206). （50806013）
