金属化合物@介孔碳硅复合材料的制备和表征

摘要

发展了一种以金属无机盐为前躯体，蔗糖为碳源，介孔二氧化硅SBA-15为模板原位合成金属化合物@介孔碳硅复合材料（M@CS）的方法。采用SEM、TEM、EDS和XRD等手段对材料进行了表征。结果表明不同的原位合成过程对材料的组成和颗粒尺寸有比较重要的影响。本文结果对高稳定嵌入式介孔复合催化剂的制备具有较好的指导意义。%A situ-synthesis method for metal compounds@mesoporous carbon-silica composites (M@CS) was developed. The composites were synthesized using inorganic metal salt as metal precursor, sucrose as carbon precursor, and mesoporous silica SBA-15 as template. The samples were characterized by scanning electron microscopy (SEM), transmission electron microscope (TEM), energy-dispersive X-ray spectrum (EDS) and X-ray diffraction (XRD). The results showed that the synthetic procedures had great influence on the composition and particle size of the final products. This paper provided a good guidance on the synthesis of stabilized mesoporous embedded catalyst.