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傅立叶变换红外漫反射光谱在近几年来发展迅速,应用范围广泛,它适合于研究粉末、煤、粘土、不溶及不熔的高聚物、泡沫塑料、催化剂等,其优点是制样简单,测定快速,在透射谱中难以制样的样品,均可进行漫反射测试。本实验采用P—E1720型FTIR仪器,TGS探测器及漫反射附件。测试条件分辨率8cm~(-1),扫描累加100次。煤、固体催化剂等粉末样品可用KCl的稀释剂,分别研细后再混匀,做图,一般样品浓度1～5%为宜。比如本实验测试了不同煤样,从图上直接反映出了芳香数大小随煤变质程度加深而增加。此外,还研究了ZrO_2—SO_4~=固相催
Fourier transform infrared diffuse reflectance spectroscopy has been developed rapidly in recent years with a wide range of applications. It is suitable for the study of powders, coal, clay, insoluble and infusible polymers, foams, catalysts, etc. The advantages of this method are simple sample preparation, Fast, diffuse reflectance measurements can be performed on samples that are difficult to make in transmission spectra. This experiment uses the P-E1720 FTIR instrument, TGS detectors and diffuse reflectance accessories. Test conditions resolution 8cm ~ (-1), the cumulative scan 100 times. Coal, solid catalyst and other powder samples available KCl diluent, respectively, after fine grinding and then mix, do the map, the general sample concentration of 1 to 5% is appropriate. For example, different coal samples were tested in this experiment, which directly reflected that the size of aromatics increased with the deepening degree of coal metamorphism. In addition, ZrO_2-SO_4 ~ = solid phase catalyst was also studied