期刊
NANOMATERIALS
卷 8, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/nano8100840
关键词
kraft lignin; catalytic thermal decomposition; carbon-based nanomaterials; iron(III) nitrate; iron(II) sulfate; iron(II) chloride; iron(III) chloride
类别
资金
- USDA Forest Service
Kraft lignin was catalytically graphitized to graphene-based nanostructures at 1000 degrees C under argon atmosphere with four iron catalysts, iron(III) nitrate (Fe-N); iron(II) chloride (Fe-Cl-2); iron(III) chloride (Fe-Cl-3); and iron(II) sulfate (Fe-S). The catalytic decomposition process of iron-promoted lignin materials was examined using thermalgravimetric analysis and temperature-programmed decomposition methods. The crystal structure, morphology and surface area of produced materials were characterized by means of X-ray diffraction, Raman, scanning electron microscopy, high resolution transmission electron microscopy and N-2 adsorption-desorption techniques. Experimental results indicated that iron nitrate catalyst had better iron dispersion three other iron salts. Iron nitrate was the most active catalyst among four iron salts. The low activity of iron in iron chloride-promoted samples was because the residual chlorine over iron surfaces prevent iron interaction with lignin functional groups.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据