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本文首次采用PASCA(化学分析正电子湮没谱)技术并配合激光Raman(LRS)及噻吩加氢脱硫(HDS)反应等手段,系统地研究了TiO_2改性的Al_2O_3载体对活性组分MoO_3表面结构的影响及TiO_2对MoO_3,CoO与载体间相互作用的调变效应,试图从结构和反应性能的关联上搞清TiO_2与多元氧化物之间相互作用的机理与本质。
In this paper, the PASCA (chemical analysis of positron annihilation spectroscopy) technique and laser Raman (LRS) and thiophene hydrodesulfurization (HDS) reaction were used for the first time to systematically investigate the effect of TiO 2 modified Al 2 O 3 support on the surface structure of MoO 3 Influence on the modulation effect of TiO_2 on the interaction between MoO_3, CoO and support, trying to figure out the mechanism and essence of the interaction between TiO_2 and multi-oxide from the relationship between structure and reaction performance.