摘要
利用FTIR漫反射光谱分析及光谱分峰程序,研究了颗粒粒径对铁法烟煤表面羟基官能团的类型和含量的影响.实验研究得出铁法烟煤表面主要羟基类型是自由羟基、羟基氢键、羟基-π氢键、醚氢键和羟基-N氢键以及它们的变化规律,随着煤样平均粒径的减小各羟基官能团吸收强度增强,表明各表面羟基官能团含量随粒径减小而增大,尤其是对于羟基-π氢键、羟基氢键、醚氢键这3种表面羟基官能团,粒径对它们含量的影响更为明显.这些变化是机械力化学作用程度不同的结果.
The effect of particle size on hydroxyl groups on the surface of Tiefa bituminite was studied using the diffuse reflection Fourier ＂transform infrared（FTIR） spectra. The selected zones of the spectra were studied by the curve-fitting analysis to gain the speciation of different OH （free OH, 0H-π, OH-OH, OH-ether and OH-N）. The results indicate that the contents of hydroxyl groups, especially those of OH-π, OH-OH and OH-ether, increase as the particle size decreases, and this trend is a reflection of the effect of mechanical-chemistry.
出处
《燃烧科学与技术》
EI
CAS
CSCD
北大核心
2009年第5期457-460,共4页
Journal of Combustion Science and Technology
基金
国家自然科学基金资助项目(50876060)
