引用本文:
王银叶, 马智, 刘建明, 秦永宁. 吡啶、CO和SO2在Al2O3/SiO2混合氧化物复合纳米晶上的TPD[J]. 应用化学,
2000, 17(4): 459-461.
Citation: WANG Yin-Ye, MA Zhi, LIU Jian-Ming, QIN Yong-Ning. TPD of Pyridine, CO and SO2 on Nanocrystals of Al2O3/SiO2 Mixed Oxides[J]. Chinese Journal of Applied Chemistry, 2000, 17(4): 459-461.
Citation: WANG Yin-Ye, MA Zhi, LIU Jian-Ming, QIN Yong-Ning. TPD of Pyridine, CO and SO2 on Nanocrystals of Al2O3/SiO2 Mixed Oxides[J]. Chinese Journal of Applied Chemistry, 2000, 17(4): 459-461.
吡啶、CO和SO2在Al2O3/SiO2混合氧化物复合纳米晶上的TPD
English
TPD of Pyridine, CO and SO2 on Nanocrystals of Al2O3/SiO2 Mixed Oxides
Abstract:
Pyridine, CO and SO2 were used as probes to characterize the mixed oxides Al2O3/SiO2 by TPD technique. XRD study showed mullite was the major composition of the mixed oxides. The tail gases were analyzed by gas chromatography. The results showed that the nanocrystal mixed oxides exhibited a good adsorbability for pyridine, CO and SO2. During desorption of pyridine and CO, CO2 was detected in desorbed mixtures and in the case of SO2 solid sulphur was found.
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Key words:
- Al2O3/SiO2 mixed oxide
- / nanocrystal
- / pyridine
- / CO
- / SO2
- / temperature programmed desorption
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